METALS INTERNATIONAL LIMITED - DIYTrade.com Z245.21, DIN 30670,DIN 30678, API RP 5L2 and other international specifications. GOST 20295 NACE MR0175, NACE TM0177, NACE TM0284, and other

METALSINTERNATIONALLIMITED

Tel:+86-21-6090-0836/37 Fax:+86-21-6090-0838

Cell:[email protected]

www.klsteel.com

Tel: +86-21-6090-0836/0837 Fax: +86-21-6090-0838 http://www.klsteel.com Email:[email protected]

Contents

1. Company Profile

2. Size Range

3. Process Flowchart

4. Mill Lines

5. QA/QC

6. Specifications


Company Profile

Metals International Limited offers a comprehensive portfolio of Electric Resistance Welded Pipe to customers in international bases. The steel pipes are widely used in Crude Oil Pipelines, Natural Gas Pipelines, Water Supply Lines, Distribution Pipelines, Foundation Piles, steel structures for construction and other general purposes by means of their wide size range. We would appreciate to cooperate with you for large scale projects.

The manufacturing of products in full conformity with international standards with high quality materials in production in line with its carefully set policies for sustainable quality; as possessing API-5L PSL1/PSL2, API-5CT, ASTM A53 B, BS1387, ASTM A139,ASTM A500,ASTM A252,DIN 2440, EN10208,EN10210,EN10219, AS A1074,AS 1163, AS 2885, ISO 3183-1/2/3,DNV OS-F-101, CSA Z245.1, GOST 20295 ,IPS-M-PI-190,KOC-MP-019, AWWA C200,NACE MR0175, NACE TM0177, NACE TM0284, ASTM A515,ASTM A516, CSA Z245.20/CSA Z245.21, DIN 30670,DIN 30678, API RP 5L2 and other international specifications. GOST 20295 NACE MR0175, NACE TM0177, NACE TM0284, and other international specifications. They are also approved by Third Party Inspection Agencies like DNV, BV,SGS, Moody, TUV, ABS, LR, GL,PED,RINA,KR, NKK, AIB-VINEOTTE, CEIL, VELOSI, CCSI, etc.

We are the approved Corporate Member of The Australian Pipeline Industry Association Ltd (APIA) , Deep Foundation Institute(DFI), and Pile Driving Contractors Association(PDCA).

During 2008-2010,we supplied the following items ex-China as below: 1. Myanmar Gas Pipeline Project: 35000 metric tons of 323.9mmx10.31mm API 5L X42 PSL 2 and 508mmx12.7mm API 5L X46 PSL 2 with CCSI as TPI (the first line pipe exported to Myanmar). 2. Ambatovy Project, Madascar: 38000 metric tons of 609.6x7.92-17.48mm 3LPE coated API X70 PSL 2 ERW line pipe and 177 metrics tons of Dual Fusion Boned Epoxy Coated Induction Bends with SGS as TPI (the first and highest ERW line pipe ex-China) 3. New Skikda LNG Project, Algeria: (1) 105,000 metric tons of 508x12.7mm/609.6x12.7mm ERW steel pipe with Moody International as TPI (one of the biggest line pipe order ex-China); 3. LNG Project Papua New Guinea

（1）1580.838 Metric Tons of 609.6x15.9mm & 229.514 Metric Tons of 406.4x9.5mm API 5L

X52 PSL2 ERW Line Pipe 4.Lilydale LNG Project,Austrilia (1) 735 metric tons of 323.9x7/13.5mm API 5L X56, AS 2885-1,AS3862 Dual FBE coated HF-ERW Steel Line Pipe

Whether our customers are active in the oil and gas, water supply line or construction, we endeavor to deliver the highest quality products and value-added services that improve our customers' business efficiency.







ERW Bare Pipe


3LPE Coated ERW Pipe

SIZE RANGE O.D. Wall thickness (mm)

In mm 1.8 2.0 2.2 2.8 3.2 4 5.2 5.6 6.4 7.1 7.9 8.7 9.5 10.3 11.1 11.9 12.7 14.3 15.9 17.5 19.1

1/2" 21.3

3/4" 26.7

1" 33.4

1 1/4" 42.2

1 1/2" 48.3

2" 60.3

2 1/2" 76.1

3" 88.9

4 1/2" 114

5 1/2" 141

6" 168

8" 219

10" 273

12" 324

14 356

16 406

18 457

20 508

22 559

24 610

Length：

6～18.3m


Chemical Componsition APL Specification 5L/ISO 3183

PSL 1 pipe

Steel grade

Mass fraction, based upon heat and product analyses a%

C Mn P S V Nb Ti

max.b max.

b min. max. max. max. max. max.

Welded pipe

L175 or A25 0,21 0,60 - 0,030 0,030 - - -

L175P or A25P 0,21 0,60 0,045 0,080 0,030 - - -

L210 or A 0,22 0,90 - 0,030 0,030 - - -

L245 or B 0,26 1,20 - 0,030 0,030 c,d c,d D

L290 or X42 0,26 1,30 - 0,030 0,030 d d D

L320 or X46 0,26 1,40 - 0,030 0,030 d d D

L360 or X52 0,26 1,40 - 0,030 0,030 d d D

L390 or X56 0,26 1,40 - 0,030 0,030 d d D

L415 or X60 0,26e 1,40

e - 0,030 0,030 f f F

L450 or X65 0,26e 1,45

e - 0,030 0,030 f f F

L485 or X70 0,26e 1,65

e - 0,030 0,030 f f F

a 0,50 % maximum for copper; 0,50 % maximum fo nickel; 0,50 % maximum for chromium; and 0,15 % maximum for

molybdenum.

For grades up to and including L360/X52, Cu, Cr and Ni shall not be added intentionally.

b For each reduction of 0,01 % below the specified maximum concentration for carbon, an increase of 0,05 % above the specified maximum concentration for manganese is permissible, up to a maximum of 1,65 % for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1,75 % for grades >L360 or X52, but <L485 or X70; and up to a maximum of 2,00 % for grade L485 or X70.

c Unless otherwise agreed, the sum of the niobium and vanadium contents shall be ≤ 0,06 %.

d The sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %.

e Unless otherwise agreed.

f Unless otherwise agreed, the sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %.

PSL 2 pipe

Steel grade

Mass fraction, based upon heat and product analyses Carbon

equivalenta

% maximum % maximum

C b

Si Mn b

P S V Nb Ti Other CEiiw CEpcm

Seamless and welded pipes

L245R or BR 0,24 0,40 1,20 0,025 0,015 c c 0,04 e 0,43 0,25

L290R or X42R 0,24 0,40 1,20 0,025 0,015 0,06 0,05 0,04 e 0,43 0,25

L245N or BN 0,24 0,40 1,20 0,025 0,015 c c 0,04 e 0,43 0,25

L290N or X42N 0,24 0,40 1,20 0,025 0,015 0,06 0,05 0,04 e 0,43 0,25

L320N or X46N 0,24 0,40 1,40 0,025 0,015 0,07 0,05 0,04 d,e 0,43 0,25

L360N or X52N 0,24 0,45 1,40 0,025 0,015 0,10 0,05 0,04 d,e 0,43 0,25

L390N or X56N 0,24 0,45 1,40 0,025 0,015 0,10f 0,05 0,04 d,e 0,43 0,25

L415N or X60N 0,24f 0,45

f 1,40

f 0,025 0,015 0,10

f 0,05 0,04

f g,h as agreed

L245Q or BQ 0,18 0,45 1,40 0,025 0,015 0,05 0,05 0,04 e 0,43 0,25

L290Q or X42Q 0,18 0,45 1,40 0,025 0,015 0,05 0,05 0,04 e 0,43 0,25

L320Q or X46Q 0,18 0,45 1,40 0,025 0,015 0,05 0,05 0,04 e 0,43 0,25

L360Q or X52Q 0,18 0,45 1,50 0,025 0,015 0,05 0,05 0,04 e 0,43 0,25

L390Q or X56Q 0,18 0,45 1,50 0,025 0,015 0,07 0,05 0,04 d,e 0,43 0,25


L415Q or X60Q 0,18f 0,45

f 1,70

f 0,025 0,015 g g g h 0,43 0,25

L450Q or X65Q 0,18f 0,45

f 1,70

f 0,025 0,015 g g g h 0,43 0,25

L485Q or X70Q 0,18f 0,45

f 1,80

f 0,025 0,015 g g g h 0,43 0,25

L555Q or X80Q 0,18f 0,45

f 1,90

f 0,025 0,015 g g g i,j as agreed

Welded pipe

L245M or BM 0,22 0,45 1,20 0,025 0,015 0,05 0,05 0,04 e 0,43 0,25

L290M or X42M 0,22 0,45 1,30 0,025 0,015 0,05 0,05 0,04 e 0,43 0,25

L320M or X46M 0,22 0,45 1,30 0,025 0,015 0,05 0,05 0,04 e 0,43 0,25

L360M or X52M 0,22 0,45 1,40 0,025 0,015 d d d e 0,43 0,25

L390M or X56M 0,22 0,45 1,40 0,025 0,015 d d d e 0,43 0,25

L415M or X60M 0,12f 0,45

f 1,60

f 0,025 0,015 g g g h 0,43 0,25

L450M or X65M 0,12f 0,45

f 1,60

f 0,025 0,015 g g g h 0,43 0,25

L485M or X70M 0,12f 0,45

f 1,70

f 0,025 0,015 g g g h 0,43 0,25

L555M or X80M 0,12f 0,45

f 1,85

f 0,025 0,015 g g g i 0,43

f 0,25

L625M or X90M 0,10 0,55f 2,10

f 0,020 0,010 g g g i

---

0,25

L690M or X100M 0,10 0,55f 2,10

f 0,020 0,010 g g g i,j 0,25

L830M or X120M 0,10 0,55f 2,10

f 0,020 0,010 g g g i,j 0,25

a Based upon product analysis. For seamless pipe with t > 20,0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CEiiw limits apply if the carbon mass fraction is greater than 0,12 % and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0,12 %.

b For each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum for manganese is permissible, up to a maximum of 1,65 % for grades ≥ L245 or B, but ≤ L360 or X52; up to a maximum of 1,75 % for grades >L360 or X52, but < L485 or X70; up to a maximum of 2,00 % for grades ≥L485 or X70, but ≤ L555 or X80; and up to a maximum of 2,20 % for grades >L555 or X80.

c Unless otherwise agreed , the sum of the niobium and vanadium concentrations shall be ≤ 0,06 %.

d The sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %.

e Unless otherwise agreed, 0,50 % maximum for copper, 0,30 % maximum for nickel, 0,30 % maximum for chromium and 0,15 %

maximum for molybdenum.

f Unless otherwise agreed.

g Unless otherwise agreed, the sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %.

h Unless otherwise agreed, 0,50 % maximum for copper, 0,50 % maximum for nickel, 0,50 % maximum for chromium and 0,50 %


i Unless otherwise agreed, 0,50 % maximum for copper, 1,00 % maximum for nickel, 0,50 % maximum for chromium and 0,50 %


j 0,004 % maximum for boron.

9.2 Chemical compostion

9.2.4 For PSL 2 pipe with a product analysis carbon mass fraction equal to or less than 0,12 %, the carbon equivalent, CEpcm, shall

be determined using Equation (2):

where the symbols for the chemical elements represent the mass fraction in percent (see Table 5).

.If the heat analysis for boron is less than 0,000 5 % then it is not necessary for the product analysis to include boron, and the boron content may be considered to be zero for the CEpcm calculation.

9.2.5 For PSL 2 pipe with a product analysis carbon mass fraction greater than 0,12 % the carbon equivalent, CE llw shall be

determined using Equation (3):

where the symbols for the chemical elements represent the mass fraction in percent (see Table 5).

NOTE: A derogation from the ISO rules for the presentation of chemical equations has been granted for Equations (2) and (3) in

deference to their longstanding use in the industry.


Sour Service Pipe

Steel grade

Mass fraction, based upon heat and product analyses% Carbon

equivalent a%

maximum Maximum

C b Si Mn

b P S V Nb Ti Other

c, d

CE

llw CE pcm

SMLS and welded pipes

L245NS or BNS 0,14 0,40 1,35 0,020 0,003 e f f 0,04 g 0,36 0,19

h

L290NS or X42NS o,14 0,40 1,35 0,020 0,003 e 0,05 0,05 0,04 - 0,36 0,19

h

L320NS or X46NS 0,14 0,40 1,40 0,020 0,003 e 0,07 0,05 0,04 g 0,38 0,20

h

L360NS or X52NS 0,16 0,45 1,65 0,020 0,003 e 0,10 0,05 0,04 g 0,43 0,22

h

L245QS or BQS 0,14 0,40 1,35 0,020 0,003 e 0,04 0,04 0,04 - 0,34 0,19

h

L 290QS or X42QS 0,14 0,40 1,35 0,020 0,003 e 0,04 0,04 0,04 - 0,34 0,19

h

L320QS or X46QS 0,15 0,45 1,40 0,020 0,003 e 0,05 0,05 0,04 - 0,36 0,20

h

L360QS or X52QS 0,16 0,45 1,65 0,020 0,003 e 0,07 0,05 0,04 g 0,39 0,20

h

L390QS or X56QS 0,16 0,45 1,65 0,020 0,003 e 0,07 0,05 0,04 g 0,40 0,21

h

L415QS or X60QS 0,16 0,45 1,65 0,020 0,003 e 0,08 0,05 0,04 g,i,k 0,41 0,22

h

L450QS or X65QS 0,16 0,45 1,65 0,020 0,003 e 0,09 0,05 0,06 g,i,k 0,42 0,22

h

L485QS or X70QS 0,16 0,45 1,65 0,020 0,003 e 0,09 0,05 0,06 g,i,k 0,42 0,22

h

welded pipe

L245MS or BMS 0,10 0,40 1,25 0,020 0,002 e 0,04 0,04 0,04 - - 0,19

L290MS or X42MS 0,10 0,40 1,25 0,020 0,002 e 0,04 0,04 0,04 - - 0,19

L320MS or X46 MS 0,10 0,45 1,35 0,020 0,002 e 0,05 0,05 0,04 - - 0,20

L360MS or X52 MS 0,10 0,45 1,45 0,020 0,002 e 0,05 0,06 0,04 - - 0,20

L390MS or X56 MS 0,10 0,45 1,45 0,020 0,002 e 0,06 0,08 0,04 g - 0,21

L415MS or X60 MS 0,10 0,45 1,45 0,020 0,002 e 0,08 0,08 0,06 g,i - 0,21

L450MS or X65MS 0,10 0,45 1,60 0,020 0,002 e 0,10 0,08 0,06 g,i,j - 0,22

L485MS or X70 MS 0,10 0,45 1,60 0,020 0,002 e 0,10 0,08 0,06 g,i,j - 0,22

a ) Based upon product analysis (see 9.2.4 and 9.2.5) The CEllw limits apply if the carbon mass fraction is greater than 0,12 % and the CEpcm limits apply if the carbon mass fraction is less than or equal to 0,12 %.

b ) For each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum for manganese is permissible, up to a maximum increase of 0,20 %.

c ) AI total ≤ 0,060 %; N ≤ 0,012 %; AI/N ≥ 2:1 (not applicable to titanium-killed or titanium-treated steel); Cu ≤ 0,35 % (if agreed ,Cu ≤ 0,10 %); Ni ≤ 0,30 %; Cr ≤ 0,30 %; Mo ≤ 0,15 %; B ≤ 0,0005 %.

d ) For welded pipe where calcium is intentionally added, unless otherwise agreed, Ca/s ≥ 1,5 if S > 0,0015 % For SMLS and welded pipes, the calcium concentration shall be ≤ 0,006 %.

e ) The maximum limit for sulfur concentration may be increased to ≤ 0,008 % for SMLS pipe and, if agreed, to ≤ 0,006 % for welded pipe. For such higher-sulfur levels in welded pipe, lower Ca/s ratios may be agreed.

f ) Unless otherwise agreed, the sum of the niobium and vanadium concentrations shall be ≤ 0,06 %.

g ) The sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %.

h ) For SMLS pipe, the listed value may be increased by 0,03.

i ) If agreed, the molybdenum concentration shall be ≤ 0,35 %.

j ) If agreed, the the chromium concentration shall be ≤ 0,45 %.

k ) If agreed, Cr concentration shall be ≤ 0,45 % and Ni concentration shall be ≤ 0,50 %.


Offshore Service Pipe

Steel grade

Mass fraction, based upon heat and product analyses Carbon

equivalent a

(Maximum) % (Maximum) %

C b Si Mn

b P S V Nb Ti

Other c

CE llw CE

pcm

SMLS and welding pipes

L245NO or BNO 0,14 0,40 1,35 0,020 0,010 d d 0,04 e,f 0,36 0,19 g

L290NO or X42NO 0,14 0,40 1,35 0,020 0,010 0,05 0,05 0,04 f 0,36 0,19 g

L320NO or X46NO 0,14 0,40 1,40 0,020 0,010 0,07 0,05 0,04 e,f 0,38 0,20 g

L360NO or X52NO 0,16 0,45 1,65 0,020 0,010 0,10 0,05 0,04 e 0,43 0,22 g

L245QO or BQO 0,14 0,40 1,35 0,020 0,010 0,04 0,04 0,04 f 0,34 0,19 g

L290QO or X42QO 0,14 0,40 1,35 0,020 0,010 0,04 0,04 0,04 f 0,34 0,19 g

L320QO or X46QO 0,15 0,45 1,40 0,020 0,010 0,05 0,05 0,04 f 0,36 0,20 g

L360QO or X52QO 0,16 0,45 1,65 0,020 0,010 0,07 0,05 0,04 e,h 0,39 0,20 g

L390QO or X56QO 0,16 0,45 1,65 0,020 0,010 0,07 0,05 0,04 e,h 0,40 0,21 g

L415QO or X60QO 0,16 0,45 1,65 0,020 0,010 0,08 0,05 0,04 e,h 0,41 0,22 g

L450QO or X65QO 0,16 0,45 1,65 0,020 0,010 0,09 0,05 0,06 e,h 0,42 0,22 g

L485QO or X70QO 0,17 0,45 1,75 0,020 0,010 0,10 0,05 0,06 e,h 0,42 0,23 g

L555QO or X80QO 0,17 0,45 1,85 0,020 0,010 0,10 0,06 0,06 e,h as agreed

welded pipe

L245MO or BMO 0,12 0,40 1,25 0,020 0,010 0,04 0,04 0,04 f - 0,19

L290MO or X42MO 0,12 0,40 1,35 0,020 0,010 0,04 0,04 0,04 f - 0,19

L320MO or X46MO 0,12 0,45 1,35 0,020 0,010 0,05 0,05 0,04 f - 0,20

L360MO or X52MO 0,12 0,45 1,65 0,020 0,010 0,05 0,05 0,04 e,h - 0,20

L390MO or X56MO 0,12 0,45 1,65 0,020 0,010 0,06 0,08 0,04 e,h - 0,21

L415MO or X60MO 0,12 0,45 1,65 0,020 0,010 0,08 0,08 0,06 e,h - 0,21

L450MO or X65MO 0,12 0,45 1,65 0,020 0,010 0,10 0,08 0,06 e,h - 0,22

L485MO or X70MO 0,12 0,45 1,75 0,020 0,010 0,10 0,08 0,06 e,h - 0,22

L555MO or X80MO 0,12 0,45 1,85 0,020 0,010 0,10 0,08 0,06 e,h - 0,24

a Based upon product analysis (see 9.2.4 and 9.2.5) The CE llw limits apply if the carbon mass fraction is greater is greater than 0,12 % and the CE pcm limits apply if the carbon mass fraction is less than or equal to 0,12 %.

b For each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum

for manganese is permissible, up to a maximum increase of 0,20 %.

c AI total ≤ 0,060 %; N ≤ 0,012 %; AI/N ≥ 2:1 (not applicable to titanium-killed or titanium-treated steel);

d Unless otherwise agreed , the sum of the niobium and vanadium concentrations shall be ≤ 0,06 %.

e The sum of the niobium, vanadium and titanium concentrations shall be ≤ 0,15 %.

f Cu ≤ 0,35 %; Ni ≤ 0,30 %; Cr ≤ 0,30 %; Mo ≤ 0,10 %; B ≤ 0,000 5 %.

g For SMLS pipe, the listed value is increased by 0,03 percentage points, up to a maximum of 0,25 %.

h Cu ≤ 0,50 %; Ni ≤ 0,50 %; Cr ≤ 0,50 %; Mo ≤ 0,50 %; B ≤ 0,000 5 %.


Tensile Test PSL 1 pipe

Pipe Grade

Pipe body Weld seam

Yield strengtha Tensile strength

a Elongation Tensile strength

b

R10,5 Rm Af Rm

MPa(psi) MPa(psi) % MPa(psi)

minimum minimum minimum minimum

L175 or A25 175 (25 400) 310 (45 000) c 310 (45 000)

L175P or A25P 175 (25 400) 310 (45 000) c 310 (45 000)

L210 or A 210 (30 500) 335 (48 600) c 335 (48 600)

L245R or BR 245 (35 500) 415 (60 200) c 415 (60 200)

L245 or B

L290R or X42R 290 (42 100) 415 (60 200) c 415 (60 200)

L290 or X42

L320 or X46 320 (46 400) 435 (63 100) c 435 (63 100)

L360 or X52 360 (52 200) 460 (66 700) c 460 (66 700)

L390 or X56 390 (56 600) 490 (71 100) c 490 (71 100)

L415 or X60 415 (60 200) 520 (75 400) c 520 (75 400)

L450 or X65 450 (65 300) 535 (77 600) c 535 (77 600)

L485 or X70 485 (70 300) 570 (82 700) c 570 (82 700)

PSL 2

Pipe grade

Pipe body Weld seam

Yield strengtha Tensile strength

a Ratio

a,b,c

Elongation

Tensile strength

d

Rto,5b Rm Rto,5/Rm Af Rm

MPa (psi) MPa (psi) % MPa (psi)

minimum maximum minimum maximum maximum Minimum minimum

L245R or BR

245 (35 500)

450e

(65 300) e

415 (60 200)

760 (110 200)

0,93 f 415(60 200) L245N or BN

L245Q or BQ

L245M or BM

L290R or X42R

290 (42 100)

495 (71 800)

415 (60 200)

760 (110 200)

0,93 f 415(60 200) L290N or X42N

L290Q or X42Q

L290M or X42M

L320N or X46N 320

(46 400) 525

(76 100) 435

(63 100) 760

(110 200) 0,93 f 435(63 100) L320Q or X46Q

L320M or X46M

L360N or X52N 360

(52 200) 530

(76 900) 460

(66 700) 760

(110 200) 0,93 f 460(66 700) L360Q or X52Q

L360M or X52M

L390N or X56N 390 (56 600)

545 (79 000)

490 (71 100)

760 (110 200)

0,93 f 490(71 100) L390Q or X56Q


L390M or X56M

L415N or X60N 415

(60 200) 565

(81 900) 520

(75 400) 760

(110 200) 0,93 f 520(75 400) L415Q or X60Q

L415M or X60M

L450Q or X65Q 450 (65 300)

600 (87 000)

535 (77 600)

760 (110 200)

0,93 f 535(77 600) L450M or X65M

L485Q or X70Q 485 (70 300)

635 (92 100)

570 (82 700)

760 (110 200)

0,93 f 570(82 700) L485M or X70M

L555Q or X80Q 555 (80 500)

705 (102 300)

625 (90 600)

825 (119 700)

0,93 f 625(90 600) L555M or X80M

L625M or X90M 625

(90 600) 775

(112 400) 695

(100 800) 915

(132 700) 0,95 f 695(100 800)

L690M or X100M 690

(100 100) 840

(121 800) 760

(110 200) 990

(143 600) 0,97

g f 760(110 200)

L830M or X120M 830(120

400) 1 050

(152 300) 915

(132 700) 1 145

(166 100) 0,99

g f 915(132 700)

Sour Service pipe

Pipe steel grade

Pipe body Weld seam

Yield strength a Tensile strength

a Ratio

b

Elongation on 50 mm

or 2 in Tensile strength

c

Rto,5 Rm Rto,5/Rm Af Rm

Mpa (psi) Mpa (psi) % Mpa (psi)

minimum maximum minimum maximum maximum minimum minimum

L245NS or BNS

245(35 500) 450 d(65 300) d

415(60 200) 760(110 200) 0,93 e 415(60 200) L245QS or BQS

L245MS or BMS

L290NS or X42NS

290(42 100) 495(71 800) 415(60 200) 760(110 200) 0,93 e 415(60 200) L290QS or X42QS

L290MS or X42MS

L320NS or X46NS

320(46 400) 525(76 100) 435(63 100) 760(110 200) 0,93 e 435(63 100) L320QS or X46QS

L320MS or X46MS

L360NS or X52NS

360(52 200) 530(76 900) 460(66 700) 760(110 200) 0,93 e 460(66 700) L360QS or X52QS

L360MS or X52MS

L390QS or X56QS 390(56 600) 545(79 000) 490(71 100) 760(110 200) 0,93 e 490(71 100)

L390MS or X56MS

L415QS or X60QS 415(60 200) 565(81 900) 520(75 400) 760(110 200) 0,93 e 520(75 400)

L415MS or X60MS

L450QS or X65QS 450(65 300) 600(87 000) 535(77 600) 760(110 200) 0,93 e 535(77 600)

L450MS or X65MS

L485MS or X70MS 485(70 300) 635(92 100) 570(82 700) 760(110 200) 0,93 e 570(82 700)

Notes:

a For intermediate grades, the difference between the specified maximum yield strength and the specified minimum yield strength shall be as given in the table for the next higher grade, and the difference between the specified minimum tensile strength and the specified minimum yield strength shall be as given in the table for the next higher grade, For intermediate grades, the tensile strength shall be ≤ 760 MPa (110 200 psi).


b This limit applies for pipe with D >323, 9 mm (12.750 in).

c For intermediate grades, the specified minimum tensile strength for the weld seam shall be the same value as was determined for the pipe body using footnote a).

d For pipe with D<219,1 mm (8.625 in), the maximum yield strength shall be ≤495 MPa (71 800 psi).

e The specified minimum elongation, Af, on 50mm or 2 in, expressed in percent and rounded to the nearest percent, shall be as determined using the following equation:

Where

C is 1 940 for calculations using SI units and 625 000 for calculations using USC units;

A xc is the applicable tensile test piece cross-sectional area, expressed in square millimeters (square inches), as follows:

---- for circular cross-section test pieces, 130 mm2 (0.20 in

2) for 12,5 mm (0.500 in) and 8,9 mm (0.350 in) diameter test pieces; and 65 mm

2

( 0.10 in2) for 6,4 mm (0.250 in) diameter test pieces;

---- for full-section test pieces, the lesser of a) 485 mm2 (0.75 in

2) and b) the cross-sectional area of the test piece, derived using the specified

outside diameter and the specified wall thickness of the pipe, rounded to the nearest 10 mm2 (0.01 in

2)

---- for strip test pieces, the lesser of a) 485 mm2( 0.75 in

2 ) and b) the cross-sectional area of the test piece, derived using the specified width

of the test piece and the specified wall thickness of the pipe, rounded to the nearest_10 mm2 (0.01 in

2 );

U is the specified minimum tensile strength, expressed in megapascals (pounds per square inch).

H.4.3 HIC/SWC test

The test for evaluation of resistance-to hydrogen- induced cracking shall meet the following acceptance criteria, with each ratio being the maximum permissible average for three sections per test specimen when tested in solution (Environment) A (see ISO 15156-2:2003, Table B.3):

a) crack sensitivity ratio (CSR) ≤ 2 %;

b) crack length ratio (CLR) ≤ 15 %;

c) crack thickness ratio (CTR) ≤ 5 %;

If HIC/SWC tests are conducted in alternative . media (see H.7.3.1.3) to simulate specific service conditions, alternative acceptance criteria may be agreed.

Offshore Service Pipe

Steel grade

Pipe body Weld seam

Yield strength a Tensile strength

a,b Ratio

a,c

Elongation on 50 mm or

2 in Tensile strength

d

Rto,5 Rm Rto,5/Rm Af Rm

MPa (psi) MPa (psi) % MPa (psi)

minimum maximum minimum maximum maximum minimum minimum

L245NO or BNO 245 450 e 415 760

0,93 f

415

L245QO or BQO (35 500) (65 300) e (60 200) (110 200) (60 200)

L245MO or BMO

L290NO or X42NO 290 495 415 760

0,93 f

415

L290QO or X42QO (42 100) (71 800) (60 200) (110 200) (60 200)

L290MO or X42MO

L320No or X46NO 320 525 435 760

0,93 f

435

L320QO or X46QO (46 400) (75 000) (63 100) (110 200) (63 100)

L320MO or X46MO

L360NO or X52NO 525 460 760

0,93 f

460

L360QO or X52QO 360 (76 000) (66 700) (110 200) (66 700)

L360MO or X52MO (52 200)

L390QO or X56 QO 390 540 490 760 0,93 f

490

L390MO or X56MO (56 600) (78 300) (71 100) (110 200) (71 100)


L415QO or X60QO 415 565 520 760 0,93 f

520

L415MO or X60MO (60 200) (81 900) (75 400) (110 200) (75 400)

L450QO or X65QO 450 570 535 760 0,93 f

535

L450MO or X65MO (65 300) (82 700) (77 600) (110 200) (77 600)

L485QO or X70QO 485 605 570 760 0,93 f

570

L485MO or X70MO (70 300) (87 700) (82 700) (110 200) (82 700)

L555QO or X80QO 555 675 625 825 0,93 f

625

L555MO or X80MO (80 500) (97 900) (90 600) (119 700) (90 600

Tolerances for Dimension and Weight：

Size Tolerance for

Outside Diameter

Tolerance for Wall Thickness Tolerance for Weight Grade B or lower Grade X42 or Higher

85/8≤D＜20 ±0.75% +15.0%, -12.5% +15.0%, -12.5%

+10.0%, -3.5%

20≤D≤24 +0.75%, -0.25% +15%, -12.5% +15%, -8.0%

Mechanical Property

PSL Grade

Yield Strength(MPa)

Tensile Strength (MPa)

10mm╳10mm╳55mm

-10℃ V-notch Impact Test

(J)

Elongation min

min max min max

PSL1

A 207 — 331 — —

e=1944 A

0.2/U

0.9

B 241 — 414 — —

X42 290 — 414 — —

X46 317 — 434 — —

X52 359 — 455 — —

X56 386 — 490 — —

X60 414 — 517 — —

X65 448 — 531 — —

X70 483 — 565 — —

PSL2

B 241 448 414 758

Average≥45 Individual≥34

X42 290 496 414 758

X46 317 524 434 758

X52 359 531 455 758

X56 386 544 490 758

X60 414 565 517 758 Average≥60 Individual≥45 X65 448 600 531 758

X70 483 621 565 758 Average≥90 Individual≥68 X80 552 690 621 827

Where

A——tensile test specimen area，for full section specimens, the smaller of 485 mm2 and the cross-sectional area of the test specimen,

calculated using the specified outside diameter and the specified wall thickness of the pipe.

U——specified minimum ultimate tensile strength, MPa.


API 5CT Casing

OD (mm)

Nominal Weight

W.T. (mm)

Type of thread OD (mm)

Nominal Weight

W.T. (mm)

Type of thread

Ib/ft STC LTC BTC Ib/ft STC LTC BTC

114.30 (4 1/2")

9.5 5.21 ◆

219.08 (8 5/8")

24 6.71 ◆

10.5 5.69 ◆ ◆ 28 7.72 ◆

11.6 6.35 ◆ ◆ ◆ 32 8.94 ◆ ◆ ◆

13.5 7.37 ◆ ◆ 36 10.16 ◆ ◆ ◆

15.1 8.56 ◆ ◆ 40 11.43 ◆ ◆

127.00 (5")

11.5 5.59 ◆ 44 12.7 ◆ ◆

13 6.43 ◆ ◆ ◆ 49 14.15 ◆ ◆

15 7.52 ◆ ◆ ◆

244.48 (9 5/8")

32.3 7.92 ◆

18 9.19 ◆ ◆ 36 8.94 ◆ ◆ ◆

21.4 11.1 ◆ ◆ 40 10.03 ◆ ◆

23.2 12.14 ◆ ◆ 43.5 11.05 ◆ ◆

24.1 12.7 ◆ ◆ 47 11.99 ◆ ◆

139.70 (5 1/2")

14 6.2 ◆ 53.5 13.84 ◆ ◆

15.5 6.98 ◆ ◆ ◆

273.05 (10 3/4")

32.75

7.09 ◆

17 7.72 ◆ ◆ ◆ 40.5 8.89 ◆ ◆

20 9.17 ◆ ◆ 45.5 10.16 ◆ ◆

23 10.54 ◆ ◆ 51 11.43 ◆ ◆

168.28 (6 5/8")

20 7.32 ◆ ◆ ◆ 55.5 12.57 ◆ ◆

24 8.94 ◆ ◆ ◆ 60.7 13.84 ◆ ◆

28 10.59 ◆ ◆ 65.7 15.11 ◆ ◆

32 12.06 ◆ ◆

298.45 (11 3/4")

42 8.46 ◆

177.80 (7")

20 6.91 ◆ 47 9.53 ◆ ◆

23 8.05 ◆ ◆ ◆ 54 11.05 ◆ ◆

26 9.19 ◆ ◆ ◆ 60 12.42 ◆ ◆

29 10.36 ◆ ◆

339.7 (13 3/8")

48 8.38 ◆

32 11.51 ◆ ◆ 54.5 9.65 ◆ ◆

35 12.65 ◆ ◆ 61 10.92 ◆ ◆

38 13.72 ◆ ◆ 68 12.19 ◆ ◆

193.68 (7 5/8")

24 7.62 ◆ 72 13.06 ◆ ◆

26.4 8.33 ◆ ◆ ◆ 406.40 (16")

65 9.53 ◆

29.7 9.52 ◆ ◆ 75 11.13 ◆ ◆

33.7 10.92 ◆ ◆ 84 12.57 ◆ ◆

39 12.7 ◆ ◆ 473.08 (18 5/8")

87.5 11.05 ◆ ◆ ◆

42.8 14.27 ◆ ◆

508.00 (20")

94 11.13 ◆ ◆ ◆

45.3 15.11 ◆ ◆ 106.

5 12.7 ◆ ◆ ◆

47.1 15.88 ◆ ◆ 133 16.13 ◆ ◆ ◆


ERW Process Flowchart


We utilizes a series of quality-controlled checkpoints and inspections that ensure an end product that meets specifications

and exceeds your expectations. It all begins with the best in raw material.

SECTION 1 – RAW MATERIAL PROCUREMENT

Quality control is embedded into all steps of our production process, beginning with the purchase of raw material. We use

only high-quality, continuous-cast, fully killed, control-rolled, fine-grain, low-carbon steel. This coil is supplied by a

number of reliable, reputable suppliers like Bao Steel,Wuhan Steel,Anshan Steel,POSCO,NKK which for many years. Coil

inventory is stored in a computer database and each coil is marked and checked based on database identification.

SECTION 2 –STRIP PREPARATION

The strip preparation section is designed for the shortest possible coil joining times, constant strip tension and precise strip

alignment and thus ensures the stable operation of the tube welding line. In the cross-welder, the ends of the coils are

cropped, precisely aligned and welded together. Simultaneously, a hole is punched in the center of the strip indicating the

cross-weld position to be detected later at the front of the tube mill.

SECTION 3 – STRIP ACCUMULATING

The system is to store the coils in “ externally in and internally out, top in and bottom out” form, to ensure continuous

feeding and production. A continuous production process is ensured by the use of the horizontal spiral strip accumulator

which bridges the standstill time in the strip preparation section during the welding of the coil ends.

SECTION 4 – Patented FORMING.

using the latest patented forming system. This system is characterized with auto setting, manual setting and quick roll

change to allow for an accurate shaping. This substantially improves the effectiveness and strength of the weld.

REFORMING section.

This section is designed in such a way that the least possible number of rolls have to be changed during size changes. The

edge bending section serves to preset the strip edges for proper presentation to the welder. All roll movements are controlled

by the computerized quicksetting system. In front of this section the hole punched during the coil joining process at the

cross-welder is detected and this information is tracked and transmitted to the cut-off where the cross-weld is removed.

Straightedge Forming section

In the straightedge forming section, the preformed strip is homogeneously shaped into a round cross-section. This is

performed by two roller beams arranged in pairs in two sections behind one another. Again all roll and beam movements are

controlled by the computerized quicksetting system.

Quick-Change System

Extemely short changing times are achieved using a combination of the "in-line" and "off-line" systems. The "in-line"

system consists of the rolls, roll chocks and the change car. The chocks with the "old" rolls are pushed out of the stationary

mill stands onto the vacant positions of the change car by use of hydraulic cylinders. The change car is then indexed over

one position and the "off-line" prepared chocks with the "new" rolls are then pulled into the stands. The "new" rolls are

moved to the work position and set according to stored values in the computerized quicksetting system. All operations are

fully automatic.

The change car is then moved to the "off-line" roll changing area. The "off-line" system consists of a variety of changing

and roll manipulation devices for removing the "old" rolls from the chocks and replacing them with the "new" rolls in

preparation for the next roll change. All the "off-line" work takes place while the mill is running.

Mill Changeover Systems

Improve Productivity and Reduce Manufacturing Costs with Patented Systems

It is important for tube and pipe manufacturers to analyze their changeover requirements carefully. Many factors determine

which changeover system best fits production needs. Some of the these factors are:

a. Product Mix

b. Run Size

c. Frequency of Runs

d. Finished Product Inventory


e. Operator Motivational Level

f. Crane Availability

g. Space Requirements

h. Maintenance

Seven Levels of Changeover Allow for Planned Upgrading

Level #1,#2,&#3: On Line Changeover Reduces Down Time Between Runs.

Level#1: Front stand and rolls are removed with the use of cranes. Roll Manipulators aid changing of tooling.

Level#2: Powered front stand removal, roll manipulators and roll racks speed up tooling change.

Level#3: Continuous Cart Transfer System(CCT)is added on line to facilitate roll change without using cranes.

Level#4 & #5: Sub-Plated On Line Changeover is Combined with Off Line change Equipment to Reduce Mill Down Time

Level#4: Includes interchangeable stand assemblies with powered disconnect and crane removal on line, powered front

stand removal off line, roll manipulators and crane lifted roll racks off line.

Level #5: Roll changing off line uses CCT System instead of crane for interchanging roll racks and storing front stands.

Level #6 & #7: Advanced Changeover Systems: No Cranes Required for Minimum Mill Down Time

Level#6: Automated Transfer Cart (ATC) removes and replaces interchangeable stand assemblies. This Level also includes

powdered front stand removal off line, roll manupulators and crane lifted roll racks off line.

Level#7: Roll changing off line uses CCT System instead of crane for interchanging roll racks and storing front stands.

TBS® is an Important Part of Changeover Systems for Tube and Pipe Mills:

Abbey Etna’s patented TBS® Forming System has been developed for all mills to reduce roll tooling costs in the forming

section, to reduce changeover time, and to improve forming mechanics. This system incorporates many unique features such

as:

a. Automatic Setup On-Line

b. Expanded Diameter Range

c. Increased Range of Diameter to Thickness Ratio(D/T)

d. Rectilinear/Rotational Adjustment of Beam

e. Simplified Top Roll Changing

Fin-pass stands

The fin-pass stands are constructed as a 4-roll design. All are equipped with rapid roll changing thanks to horizontal pushing

out and in of the whole roll chock assembly. All roll and assembly movements are controlled by the computerized

quicksetting system and roll locations are displayed on the operators screens.

SECTION 5 – HF WELDING

This 1200 kw/600kw High Frequency Induction/contact solid-state Welder is manufactured by Thermatool Corp, a famous

welder manufacturer in the world. It can examine and adjust weld parameters, including temperature and inside diameter

and outside diameter trim removal through computerized processor. It serves to heat the two strip edges to a molten state

prior to entering the squeeze stand.

The 5-roll squeeze stand, supplied by Bronx International, is also equipped with a computerized quicksetting system

ensuring high precision positioning of the weld rolls for proper alignment of the strip edges during the welding process. The

outside scarfer is equipped with two scarfing tools which can be adjusted independently. The patented inside scarfer is

equipped with a bead chopper to produce short chips in order to ease I.D. bead removal in the bundling area.

SECTION 6 -- WELD SEAM ANNEALING

A set of 4x500kw frequency welder supplied by Thermatool provide heat to the weld area.

SECTION 7 -- .Air/Water Cooling section (76m/250' in length)

In order to remove the heat induced into the tube during the welding process, the tube is first cooled in air to reduce thermal

shock then prior to entering the sizing/squaring stands is cooled with water.

SECTION 8 – EXTERNAL/INTERNAL SCARFING


The burrs inside and outside the pipe will be scarfed properly.

SECTION 9 -- SIZING/STRAIGHTENING

Sizing or squaring is performed in the 4-roll stands.These stands are particularly suited to precision sizing of round tubes

and to profiling of square and rectangular hollow sections. All roll assembly movements are controlled by the computerized

quicksetting system and roll locations are displayed on the operators screens. Straightening of the tubular sections is

performed in a universal turks head with rolls that never change. Precise plane-parallelism of the longitudinal sides of

rectangular hollow sections with extreme wide side to narrow side ratios is ensured by the use of cambering stands.

Achieving Results

Enhanced Efficiency • Roll angles are quickly and easily adjusted to provide line contact with the tube surface over the maximum effective roll

profile.

• Set up time is minimized through our patented Computer Aided Setting System.

Improved Quality • Hydraulic lift mechanism on the roll entry automatically adjusts roll position to prevent damaging tube ends.

• A range of heavy duty style machines provide enhanced rigidity, with consistent straightness and roundness.

• The COMPASS software package can provide management, maintenance and quality control information, including:

calibration and wear compensation; maintenance information; fault finding; and mimic flow diagrams.

Superior Technology • Unique design allows thin walled tube to be straightened accurately without surface blemishes.

• The ability to straighten at speeds up to 200 meters per minute (approximately 600 fpm).

• Hydraulic lift mechanism with sensors automatically adjusts rolls to accept upset pipe.

• Pressure sensing units may be fitted on each roll to provide an accurate indication of the pressure applied to the tube.

Safety

• The drives are set in the back of the machine, away from the operator.

• The machine operator has a complete view of the straightening process from the operating console.

SECTION 10 –CUT-OFF

The travelling milling cutter operates with two carbide tipped cut-off blades. The cut-off ensures a very high precision in

regards to length and quality of the end cut for tubes of all dimensions and wall thickness. Standard lengths from 23'-60' are

produced with lengths exceeding 63' up to 80' treated as special orders.

Flexibility

• O.D. Variations - Can accommodate pipe and tube with O.D. ranges of less than 12 mm (0.5 inches) to over 660 mm (26

inches) and crop lengths from a facing cut to 1 meter (approximately 3 feet).

• Operating Method – Can operate in various modes - fully automatic; automatic with manual pipe position override;

semi-automatic; and manual.

• Throughput requirements – Can improve productivity with multiple head facing machines, as well as customized material

handling system.

• Pipe Lengths – Can accommodate any length variation, as well as properly cut random lengths.

• Wall Thickness – Can accommodate essentially any wall thickness required.

Design Excellence


The Travelling Milling Cut-Off Machines are specially adapted for cutting line pipe, casing, tubing, roller bearing and

coupling stock.

• Our design incorporates a rotating product and stationary tool cutting method.

• Automatic ream & chamfer assembly, which can conform to the O.D. or I.D. of the pipe, or cut to a reference centerline.

• Universal chucking assembly, which handles a range of pipe diameters per tooling set.

• Large main drive motors allow cutting with two tools, each with a wide carbide insert; providing long tool wear life at

cutting speeds over 200 surface meters per minute (approximately 600 fpm).

SECTION 11- End Facing

While most end facing operations can be effectively accomplished with a single head machine, Bronx/Taylor-Wilson

recognized the need for improved productivity associated with high speed cutting lines. Thus, a twin head facing machine

for those special applications is introduced:.

Achieving Results

Enhanced Productivity

• Set up time is reduced by incorporating remote, computer-driven automatic tool setting with hydraulic tool block clamps

and powered diameter adjustments.

• The machine is built on electronic elevating jack base for vertical adjustment to accommodate varying tube O.D.

• Top opening pipe clamps and separate alignment stations reduce cycle time.

• Fully automatic equipment operation provided by state-of-the-art Level 1 or Level 2 interface.

• The machines utilize dry carbide cutting tools with surface cutting speeds of up to 200 meters per minute (approximately

600 fpm).

Application Flexibility • Superior machine stability due to the fixed head center height design reduces tool chatter and vibration, thus improving

surface finish.

• The pipe is firmly held by hydraulic clamps to reduce tool vibration and provide outstanding surface finish.

• Heavy duty design ensures long life and low maintenance even in arduous steel mill environments

SECTION 12 –HYDROSTATIC TESTING

Flexibility

While the principles behind hydrostatic testing remain consistent, each installation has its own unique requirements.

BRONX/TAYLOR-WILSON designs and produces state-of-the-art systems with the flexibility to accommodate a host of

variables, including:

• O.D. Variations – Can test pipe and tube with an O.D. from less than 150 mm (1 inch) to over 630 mm (24 inches). With

quick change tooling, can accommodate over a 4:1 variation in O.D. on a single machine.

• End Condition – Can accommodate plain end square cuts, API line pipe ends, threaded ends, as mill sawed ends, or

pierced ends.

• Pipe Lengths – Can design a system to accommodate any length variation, as well as properly test random lengths.

• Throughput Requirements – Single head, low pressure testers for off-line use to multi-head (two, three or four head), high

speed machines for in-line mill applications.


• Operating Method – Can operate in various modes - fully automatic; automatic with manual pipe position override;

semi-automatic; and manual.

• Pressure – Can test with stable pressure of 69bars to over 800 bars .

Design Excellence - Sealing.

Bronx/Taylor-Wilson has designed and produced an array of sealing devices, to accommodate a wide variety of applications

based on end conditions, O.D. variations and pressure requirements. Our sealing devices include:

• Traditional U-cup seal with special anti-extrusion hardened ring;

• End sealing for low pressure;

• I.D. sealing for critical high stressed pipes;

• Collapsing seal with traveling insert, which allows a pipe range to be tested by a common seal – for testing unfinished

product, or in front of a coupling.

Design Excellence – Pressure Control.

Frequently, the test pressure procedure is affected by fluctuating pressures, thereby compromising the testing process. By

using specially designed intensifiers, either oil-to-water or water-to-water, combined with the latest

microprocessor-controlled hydraulic servo equipment or electronic air-over-water regulation system, we can achieve greater

stability in the test pressure systems. Additionally, the test hold time can be easily varied on our testers to suit the specific

standard to which the pipe is being tested – all with continuous and accurate pressure control throughout the test hold

period.

Achieving Results

Enhanced Efficiency • Fully automatic testing of a complete API range (1, 2 or 3) of pipe lengths, without resetting the machine.

• An automatic measuring system built into the alignment station to prevent pipes outside of the length tolerance from

entering the test bed, while simultaneously testing and discharging previous pipes.

• All pipe length, grade and pressure settings are accomplished at the operator control station, without physical adjustments

required.

• Testing mechanisms are designed with drop-in components to rapidly change pipe size or test cups.

• Automatic electronic end length tracking device ensures the quickest cycle time between pipe length variations.

• Alarm diagnostics and maintenance screens for fast and accurate trouble-shooting.

Superior Technology

• Self-contained water filtration system to control the test water for trouble free operation.

• Internal crane mechanism improves servicing of the system.

• Fast and accurate test pressure-build times through the deployment of our specially designed intensifying systems.

• Data capture by the precise measurement of each pipe can be transmitted though the PLC control and network to other

areas of the finish floor, including drifting station, marking system or bundler.

Safety

• Fully enclosed test hood provides protection for personnel and adjacent equipment.

• Bullet proof windows in the control station for operator safety. • Optional features such as video cameras for remote operation of the hydrostatic tester for further operator safety.


STEP 13-SEAM UST

The in-line ultrasonic testing system is to test the defects existed in the pipe.

STEP 14- WEIGHING, MEASURING AND STENCILING

Each pipe is weighed, measured, and stenciled for complete identification. Pipe dimensions are compared with database

order information including specification, heat number, size, date and time of manufacture before they are sent to shipping.

STEP 15 –Stock and Shipment

Capable of handling tubes from 20 to 63 feet in length directly from the mill line, the computer operated system builds

bundles to mill weight and size specifications and then bands, drains and transports the completed bundles to the warehouse

for storage or direct loading to trucks.


Mill Lines



ф630 ERW Production Line

Mill Line


Caging Forming

High Frequency Welding


Annealing

Milling Cut-Off


Air Cooling


Finishing Line



Quality Assurance/Quality Control

Online UT Offline UT

Flattening DWTT


Spectrograph Metallurgical Microscope

Hydraulic Universal Testing Polishing

Charpy V-Notch Impact Testing Metallurgical Microscopy


Specifications 1. Steel Pipe

1.1 Line Pipe API 5L PSL1/PSL 2 Line Pipe: Gr. B X42, X46, X52, X56, X60, X65, X70, X80/BM.X42M,X46M,X52M,X60M, X65M,X70,X80M ISO 3183-1/2 Petroleum and Natural Gas Industries-Steel Pipe for Pipelines-L240M,L290M,L320M,L360M, L390M,L415M,L450M,L485M,L555M,L690M ISO 3183-3 Petroleum and Natural Gas Industries Steel Pipe for Pipelines-L245NC / L245NCS,L290NC / L290NCS, L360NC / L360NCS, L290MC / L290MCS, L360MC / L360MCS, L415MC / L415MCS, L450MC / L450MCS, L485MC / L485MCS, L555MC AS2885 Pipelines-Gas and liquid petroleum Part 1: Design and Construction DIN 2470-1 Steel gas pipelines for permissible service pressures up to 16 bar DIN 2470-2 Steel gas pipelines for permissible service pressures exceeding 16 bar DIN 17172 Steel pipes for pipelines for the transport of combustion fluids and gases--DIN 2470 Part II St. E210-7, E240-7,E290-7, St. E 320-7,St.E 360-7 EN 10208-2 Steel Pipes for Pipelines for Combustible Fluids-Technical Delivery Conditions-L245MB,L290MB,L320MB,L360MB,L390MB,L415MB,

L450MB,L485MB,L555MB CSA Z245.1 Steel Pipe-241,290,359,386,414,448,483,550,620,690,825 IPS-M-PI-190 Material And Equipment Standard for Line Pipe KOC-MP-019 KOC Standard for Submerged-Arc Welded (SAW) Pipe to API 5L NACE MR 0175/ISO 15156-2 Petroleum and Natural Gas Industries – Materials for Use in H2S Containing Environments in Oil and Gas Production. Part 2. Cracking resistant Carbon and Low Alloy Steels, and the Use of Cast Irons. NACE TM 0177 Laboratory Testing of Metals for Resistance to Sulfide Stress Cracking in Hydrogen Sulfide (H2S) Environments NACE TM 0284 Standard Test Method - Evaluation of Pipeline and Pressure Vessel Steels for Resistance to Hydrogen-Induced Cracking DEP 31.40.20.35-Gen Line pipe for non-critical service (amendments/supplements to ISO 3183-1) DEP 31.40.20.37-Gen Line pipe for critical service (amendments/supplements to ISO 3183-3) DEP 31.40.40.38-Gen Hydrostatic pressure testing of new pipelines DEP 31.40.20.35-Gen Line pipe for non-critical service (amendments/supplements to ISO 3183-1) DEP 31.40.60.11-Gen Pipeline leak detection DEP 31.40.60.12-Gen Pipeline Repairs (supplements to ANSI/ASME B31.4 and B31.8) DEP 61.40.20.30-Gen Welding of pipelines and related facilities (amendments/supplements to ANSI/API STD 1104) DEP 31.40.50.30-Gen Precommissioning of pipelines GOST-K56,K60,K65 Steel Pipe GOST 20295 Steel welded pipes for main gas and oil pipelines TOTAL GS EP PLR 202 Fabrication of longitudinally submerged arc welded pipes for pipelines (sweet service) API 5L: TUBOS PARA CONDUÇÃO DE PRODUTOS PETROLÍFEROS. API 5LX: TUBOS PARA CONDUÇÃO DE PRODUTOS PETROLÍFEROS COM EXIGÊNCIAS ESPECIAIS API 5A: TUBOS DE PERFURAÇÃO, REVESTIMENTO E BOMBEAMENTO PARA POÇOS PETROLÍFEROS CASING, TUBING, DRILL PIPE. API 5AX: TUBOS DE PERFURAÇÃO, REVESTIMENTO E BOMBEAMENTO PARA POÇOS PETROLÍFEROS COM EXIGÊNCIAS ESPECIAIS (HIGH-STRENGTH CASING, TUBING, DRILL PIPE). API 5AC: TUBOS DE REVESTIMENTO E DE BOMBEAMENTO PARA POÇOS PETROLÍFEROS, COM PROPRIEDADES RESTRITAS: GRADE C-75, CASING E TUBING. API 5B: ESPECIFICAÇÃO DE ROSCAS, CALIBRES E INSPEÇÃO DE ROSCAS PARA CASING, TUBING E LINE PIPE. 1.2. Pipe for General Uses

ANSI/ASTM A135-Standard Specification for Electric-Resistance-Welded Steel Pipe ASTM A513 /ASME SA513 Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing-1020 Drawn Over Mandrel (DOM)


ASTM A795/ASME SA795 STANDARD SPECIFICATION FOR BLACK AND HOT-DIPPED ZINC COATED(GALVANIZED) WELDED AND SEAMLESS STEEL PIPE FOR FIRE PROTECTION USE AWWA C200-97: Steel Water Pipe-6 In. (150 mm) and Larger BS 2059 Part I & II Gr. 320, Gr. 360 BS 3602-1 Specification for steel pipes and tubes for pressure purposes: carbon and carbon manganese steel with specified elevated temperature properties.-Part 1:Specification for seamless and electric resistance welded including induction welded tubes BS 6363-83 WELDED COLD FORMED STEEL STRUCTURAL HOLLOW BS 7191 All Specification for Weldable Structure Steels for Fixed Offshore Structures DIN 1615 Welded circular tubes of non-alloy steel without special quality requirements. DIN 1626 Welded circular tubes of non-alloy steel with special quality requirements-St. 37.0,St44.0, St.52.0 DIN 1628 Welded circular tubes of non-alloy steel with very high quality requirements- St. 37.4 DIN 2458 Plain end welded steel tubes, dimensions and conventional masses per unit length- DIN 2470 Part 1 St. 37.0,St44.0, St.52.0 DIN 2460 Steel tubes for waterworks services DIN 2460 DIN 17120 Welded structural steel circular tubes for structural engineering purposes DIN 17177 ELECTRICALLY RESITANCE OR INDUCTION WELDED STEEL TUBES FOR ELEVATED TEMPERATURE- St. 37.8, St. 42.8 EN 10208-1 Non alloy steel tubes with specified room temperature properties. EN 10208-3 Non alloy and alloy fine grain steel tubes EN 10217-1/3 Welded steel tubes for pressure purposes EN 10219-1, 2Cold formed welded structural hollow sections of non-alloy and fine grain steels. Part 1: Technical delivery requirements. Part 2: Dimensions EN 10224 Steel pipes, joints and fittings for the conveyance of aqueous liquids including potable water EN 10296-1 Welded steel tubes for mechanical and general engineering purposes – TDR. Part 1: Non alloy and alloy steel tubes ISO 2604/3-75 STEEL PRODUCTS FOR PRESSURE PURPOSE PART3 ELECTRIC RESISTANCE AND INDUCTION WELDED TUBES JIS G 3444 STK 90,400,490,500,540 Carbon Steel Tubes for General Structural Purpose JIS G3452 JIS G 3457 Arc Welded Carbon Steel Pipe- STPY 400 KS D 3566 Carbon Steel Tubes for General Structural Purpose- STK 90,400,490,500,540 KS D 3583 Arc Welded Carbon Steel Pipe- SPW 400 NF A49-141-78 STEEL TUBES WELDED PLAIN END TUBES OF COMMERCIAL QUALITY FOR GENERAL PURPOSES AT MEDIUM PRESSURE NF A49-150-85 STEEL TUBES WELDED TUBES INTENDED TO BE COATED OF PROTECTED FOR USE IN WATER PIPING SUSTEMS NF A49-242-85 STEEL TUBES LONGITUDINALLY PRESSURE WELDED TUBES D 168.3mmMax IN NOT ALLOYED AND LOW ALLOYED AT MEDIUM ELEVATED TEMPERATURES NF A49-243-85 STEEL TUBES LONGITUDINALLY PRESSURE WELDED TUBES D 168.3mm IN NOT ALLOYED AND FERRITIC ALLOYED STEELS USED AT ELEVATED TEMPERATURES NF A49-400 LONGITUDINALLY ELECTRIC RESISTANCE WELDED UNALLOYED STEEL TUBES D 17.2Min 406.4mmMax FOR THE TRANSPORT OF PRESSURIZED FLUIDS NF A49-343STEEL TUBES LONGITUDINALLY WELDED TUBES D 168.3mmMax FOR ENGINEERING USE NF A49-341STEEL TUBES PRECISION WELDED TUBES FOR MECHANICAL APPLICATION

1.3. Structural Pipe API 2B Fabricated Structural Steel Pipe ASTM A53 A/B Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless. ASTM A252 FOUNDATION PILES for soil consolidation, marine wharfs

ASTM A500-89/ASME SA500 COLD FORMED WELDE AND SEAMLESS CARBON STEEL STRUCTURAL TUBING IN ROUNDS AND SHAPES AS1579 Arc-Welded Steel Pipes and Fittings for Water and Wastewater AS/NZS 1163 Structural Steel Hollow Sections- C250/L0, C350/L0,C450/L0

1.4.Submarine (Offshore) Pipeline System API 5L PSL 2 Line Pipe: BM.X42MS,X46MS,X52MS,X60MS,X65MS,X70MS,X80MS


DNV OS-F101 Submarine Pipeline Systems-SAWL 245,SAWL290,SAWL 320,SAWL 360,SAWL 415,SAWL 450,SAWL 485,SAWL 555 AS 2885-1:1997 AS 2885-2:2002, AS 2885-3:2001, AS 2885-4:2003, AS/NZS 2885-5:2002, ASME B31.4:1998, ASME B31.8:2000, BS 8010-1:1989, BS 8010-2.8:1992, BS 8010-3:1993, CSA-Z 662:2003, DIN 2470-2:1983, EN 1594:2000, EN 14161:2003, ENV 1993-4-3:1999, ISO 13623:2000, ISO 3183-3:1999, NEN 3650-1-K1-K6:2003, NEN 3650-2-K1-K6:2003, NHT-R51-00002 03M:2002, NHT-R51-00016 03M:2002, NHT-S51-00021 02M:2002, SNIP 2.05.06:1985, VSN 51-9:1986, VSN 51-3/2.38:1985 GOST 10705/10704 GOST 1050-08SP, 10SP, 20SP GOST 19282-09G2S STN 42 0144 STN 42 5738 UNI 8488

1.5 Boiler Pipe

ASTM A178 / ASME SA178 ELETRIC RESISTANCE WELDED CARBON STEEL BOILER TUBES ASTM A214 / A214M - 96(2005) Standard Specification for Electric-Resistance-Welded Carbon Steel Heat-Exchanger and Condenser Tubes ASTM A226/A226M-95 Specification for Electric-Resistance-Welded Carbon Steel Boiler Superheater Tubes for High-Pressure Service GOST 12132-66 Electrically welded and seamless steel tubes for automotive and bicycle industries. GOST 5005-65 Electrically welded steel tubes for car cardan shafts. GOST 8696-74 Electrically welded steel tubes with spiral seams for general purposes GOST 10706-76 Electrically welded steel tubes, line-weld. Technical requirements. GOST 10707-73 Electrically welded cold-drawn and cold-rolled steel tubes.Technical requirements. JIS G3472 Electric Resistance Welded Carbon Steel Tubes for Automobile Structural Purposes NF A49-240-83 STEEL TUBES LONGITUDINALLY BUTT WELDING PLAIN END FOR PRESSUE VESSELS AND PIPE SYSTEMS USED AT LOW TEMPERATURES NF A49-245-86 STEEL TUBES LONGITUDINALLY WELDED TUBES FOR FERRIC NON ALLOY AND ALLOY STEEL HEAT EXCHANGERS

1.6 Application

LINE PIPE AND PROCESS PIPES The line pipe and process pipes range covers transmission lines, flow lines, jetty lines, steam lines, slug catchers, compressor stations and pump columns.

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OFFSHORE PIPES Offshore pipes include rolled and welded tubulars, cans, legs, piles, bracings, conductors, risers and tethers. CONSTRUCTION PIPES Our construction pipes cover a range of applications including bridges, stadiums and high-rise buildings. STEEL STRUCTURES UNDER WATER We also produce pipes for steel structures under water. These include piles, dolphins and anchor piles. PIPES FOR MACHINERY COMPONENTS Our pipes for machinery components include felt rolls, wire rolls, press rolls, dryers, reel spools, winder drums, hydraulic cylinders, cable drums, yarn rollers, rolls for weaving machinery, cardan shafts, dryer rolls.

2. Coating Specifications 2.1.External Coating 2.1.1 External Epoxy Coating CAN/CSA-Z245.20 Standard for External Fusion Bond Epoxy Coating for Steel Pipe AS 3862 Standard Specification for External Fusion-Bonded Epoxy Coating for Steel Pipes AS 4352-2005 Testing for Coating Resistance for Cathodic Disbonding AWWA C210 Standard for Liquid-Epoxy Coating Systems for the Interior and Exterior of Steel Water Pipelines AWWA C213 Standard for Fusion Bonded Epoxy Coating for the Interior and Exterior of Steel Water Pipelines. DEP 31.40.30.32-Gen Technical Specification for External Fusion-Bonded Epoxy Powder coating for Line Pipe EN 10289-2007 STEEL TUBES AND FITTINGS FOR ONSHORE AND OFFSHORE PIPELINES - EXTERNAL LIQUID APPLIED EPOXY AND EPOXY-MODIFIED COATINGS NFA 49-709 Standard for External Fusion Bond Epoxy Coating for Steel Pipe ISO 21809-2:2007, Petroleum and natural gas industries-External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 2: Fusion-bonded epoxy coatings NACE RP 0394 – National Association of Corrosion Engineers Standard Recommended Practice, Application, Performance, and Quality Control of Plant Applied, Fusion Bonded Epoxy External Pipe Coating. NACPA 12-78 – National Association of Pipe Coating Applicators External Application Procedure for Plant Applied fusion Bonded Epoxy (FBE) to Steel Pipe. SAES-H-002 Internal and External Coatings for Steel Pipelines and Piping 09-SAMSS-089 Shop-Applied External FBE Coating 09-SAMSS-091 Shop-Applied Internal FBE Coatings 2.1.2 Polyethylene Coating CAN/CSA Z245.21 External Polyethylene Coating for Pipe DIN 30670 Polyethylene Sheathing of Steel Tubes and of Steel Shaped Fittings NFA 49-710 External Three-Layer Polyethylene Based Coating, Application by Extrusion DNV-RP-F106 Factory Applied External Pipeline Coatings For Corrosion Control AS/NZS 1518 External Extruded High-Density Polyethylene Coating System for Pipes AS4321 Fusion Bonded Medium-Density Polyethylene coating and lining for pipes and fittings DEP 31.40.30.31-Gen. Technical Specification for External Polyethylene and Polypropylene Coating for Line Pipe E N 1 0 2 8 8 Steel tubes and fitt ings for on and offshore pipelines-External two-layer extruded polyethylene based coatings IPS-G-TP-335 Material and Construction Standard for Three Layer Polyethylene Coating System ISO DIS 21809-1 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 1: Polyolefin coatings (3- layer PE and 3- layer PP) ISO 21809-4:2009, Petroleum and natural gas industries -External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 4: Polyethylene Coatings (2-layer PE) PETROBRAS' ET-200.03 Engineering Specification ("Piping Materials for Production and Process Facilities") for using low density linear polyethylene in carbon steel piping, as to appendix 13 of such specification. 09-SAMSS-113 External Renovation Coating for Buried Pipelines and Piping (APCS-113) TS 5139 External Three-Layer Polyethylene Based Coating, Application by Extrusion


UNI 9099- Polyethylene Coating Applied by Extrusion 2.1.3 Polypropylene Coating DIN30678 Polypropylene Sheathing of Steel Tubes and of Steel Shaped Fittings EN 10286 Steel tubes and fittings for onshore and offshore pipelines –External three layer extruded polypropylene based coatings. ISO DIS 21809-1 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 1: Polyolefin coatings (3- layer PE and 3- layer PP) NFA 49-711 External Three-Layer Polypropylene Based Coating, Application by Extrusion 09-SAMSS-114 Shop-Applied Extruded, Three-Layer Polypropylene External Coatings for Line Pipe 2.1.4 Polyurethane Coating AWWA C222-99: Polyurethane Coatings for the Interior and Exterior of Steel Water Pipe and Fittings BS 5493- Polyurethane Coating DIN 30677.2 polyurethane Insulation of the fittings EN 10290- External Liquid Applied Polyurethane Coatings 2.1.5 Polyolefin Coating AWWA C225-03: Fused Polyolefin Coating Systems for the Exterior of Steel Water Pipelines AWWA C215-99: Extruded Polyolefin Coatings for the Exterior of Steel Water Pipelines AWWA C216-00 Standard for Heat-Shrinkable Cross-Linked Polyolefin Coatings for the Exterior of Special Sections, Connections, and Fitting for the Steel Water Pipelines AWWA C224-01: Two-layer Nylon-11 Based Polyamide Coating System for Interior and Exterior of Steel Water Pipe and Fittings AWWA C225-03: Fused Polyolefin Coating Systems for the Exterior of Steel Water Pipelines 2.1.6 Tape Coating ISO 21809-3:2008, Petroleum and natural gas industries-External coatings for buried or submerged pipelines used in pipeline transportation systems-Part 3: Field joint coatings AWWA C209-00: Standard for Cold-Applied Tape Coatings for the Exterior of Special Sections, Connections, and Fittings for Steel Water Pipelines AWWA C214-00 Standard for Tape Coating Systems for the Exterior of the Steel Water Pipelines AWWA C217-99 Standard for Cold-Applied Petrolatum Tape and Petroleum Wax Tape Coatings for the Exterior for Special Sections, Connections, and Fittings for Buried/Submerged Steel Water Pipelines AWWA C218-02 Standard for Coating the Exterior of Aboveground Steel Water Pipelines and Fittings AWWA C224-01: Two-layer Nylon-11 Based Polyamide Coating System for Interior and Exterior of Steel Water Pipe and Fittings EN 12068 - DIN 30672 STANDARD-POLYETHYLENE SELF ADHESIVE TAPES 2.1.7 Bitumen Coating DIN 30673 Bitumen coatings and linings for steel pipes, fittings and vessels. TS 4356 2.1.8 Concrete Weighted Coating DNV-OS-F101 Submarine Pipeline System ASTM C171 Specification for Sheet Material for Coating Concrete BS EN 12620 Aggregates for Concrete ISO 21809-5:2009, Petroleum and natural gas industries -External coatings for buried or submerged pipelines used in pipeline transportation systems - Part 5:External concrete coating. ASTM C42 Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete ASTM C642 Standard Test Method for Specific Gravity, Absorption and Voids in Hardened Concrete ASTM C87 Standard Test Method for Effect of Impurities in Fine Aggregate on Strength of Mortar BS 1881 Methods of Testing Concrete BS 3148 Methods of Test for Water for Making Concrete BS 4482 Hard Drawn Mild Steel Wire for the Reinforcement of Concrete BS 4483 Specification for Steel Fabric for the Reinforcement of Concrete BS 4449 Specification for Carbon Steel Bars for Reinforcement of Concrete




ISO 4012 Determination of Compressive Strength of Test Specimen 2.1.9 Marine Coating EN ISO 12944:1998 – Paints & Varnishes – Corrosion Protection of Steel Structures by protective paint system (parts 1 – 8) ISO 20340:2009 Paints and varnishes – Performance requirements for protective paint systems for offshore and related structures ISO 15741 Paints and varnishes-Friction-reduction coatings for the interior of on- and offshore pipelines for non-corrosive gases 2.1.10 Other specification British Gas BGC/PS/CM1, BGC/PWS/CM2 GAZ de France R 09 NACE RP 0181 NF A 49-706 TS 5140 TS 5139, 2.2. Lining 2.2.1 Epoxy Lining API RP 5L2 Recommended Practice for Internal Coating of Line Pipe for Non-Corrosive Gas Transmission Service. API RP 5L7 (R2010) Recommended Practice for Unprimed Internal Fusion Bonded Epoxy Coating of Line Pipe AWWA C210 Liquid-Epoxy Coating Systems for the Interior and Exterior of Steel Water Pipelines NFA 49-709 Internal can be epoxy 80 microns 2.2.2 Bitumen Lining DIN 30673 Bitumen coatings and linings for steel pipes, fittings and vessels UNI-ISO 5256/87 STANDARD-BITUMEN COATING 2.1.3 Coal-Tar Enamel Coating AWWA C-203 Coal-Tar Protective Coatings and Linings for Steel Water Pipelines-Enamel and Tape-Hot-Applied NFA 49-708 Recommended Practice for Internal Coating of Line Pipe 2.2.3 Cement Mortar Lining AWWA C205-00: Cement-Mortar Protective Lining and Coating for Steel Water Pipe- 4 In. (100 mm) and Larger-Shop application AWWA C602 Standard for Cement-Mortar Lining of Water Pipelines - 4 inch (100 mm) and Larger - In Place AS 1281-2001 Cement mortar lining of steel pipes and fittings AS/NZS 1516 Cement Mortar Lining of Pipelines In Situ EN 10298 Steel tubes and fittings for onshore and offshore pipelines - Internal lining with cement mortar 2.2.4 Shop Cement Lined Piping AWWA C205,C104,C602 DIN 2614 British Standard BS 534 British Petroleum GS 106-1 Shell DEP 30.48.30.31-Gen. Saudi Aramco 01-SAMSS-005 KNPC ENG STD 87C1 API RP 10E 2.2.5 Plastic Lined ASTM D4894 PTFE (Polytetrafluorethylene) ASTM D3307 PFA(Perfluoroalkory) ASTM D3222 PVDF(Polyvinyledenefluorid)


ASTM D4101 PP(Polypropylene) BS 6374-2 Lining of equipment with polymeric materials for the process industries - Part 2: Specification for lining with non-sheet applied thermoplastics BS 6374-3 Lining of equipment with polymeric materials for the process industries - Part 3: Specification for lining with stoved thermosetting resins BS 6374-5 Lining of equipment with polymeric materials for the process industries - Part 5: Specification for lining with rubbers Pipe Coating Products Fusion Bonded Epoxy – Fusion Bond Epoxy is a powder epoxy thermosetting coating applied for anticorrosion protection to steel pipelines. The pipe is first blast cleaned and heated. Then epoxy powder is spray applied by electrostatic guns to melt and form a uniform layer that hardens within a minute from application. Utilizing industry accepted materials supplied by manufacturers such as 3M, DuPont, and Valspar, the facility can apply FBE in a wide range of thickness to cost effectively meet any project specifications. Fusion Bonded Epoxy with Abrasion Resistance Overcoating (FBE/ARO) – Utilizing two completely separate powder systems, the facility can produce FBE with an ARO at unprecedented processing speeds using industry accepted materials such as 3M 6352, DuPont 7-2610, and Lilly 2040. Fusion Bonded Epoxy with High Temperature Resistant Overcoating – Utilizing two completely separate powder systems, the facility can produce FBE with a high operating temperature resistant overcoating such as DuPont’s Nap-Gard Gold and 3M’s 6258. Fusion Bonded Epoxy with Zap-Wrap Overcoating – The facility is capable of processing line pipe with connections and of applying the Zap-Wrap abrasion resistance overcoating to the ends of each pipe. Three Layer Polyethylene (3LPE) To improve anticorrosion performance and adhesion, an additional layer of epoxy primer is sprayed onto pipe surfaces prior to the adhesive layer and Polyethylene top layer application. Three Layer Polyethylene is suitable for service temperatures from 60°C to 80°C (85°C peaks). Typical coating thickness is from 1-2 mm to 3-5 mm. Three Layer Polypropylene (3LPP) If a wider service temperature range and high stiffness is required, adhesive and top layers, applied over primer layer, are based on polypropylene instead of polyethylene. Three Layer Polypropylene is suitable for service temperatures up to 135 °C (140°C peaks). Typical coating thickness is from 1-2 mm to 3-5 mm. Three Layer Polypropylene and Polyethylene Three Layer applications involve a thermoplastic coating applied to steel pipelines as a form of anticorrosion protection. This mechanical resistance is appropriate when the risk of particularly severe coating damages exist. The Three Layer process involved several steps. First, the pipe surface is blast cleaned to remove any external residue from the mill or storage. It is then heated and sprayed with a Fusion Bond Epoxy (FBE) primer followed by the application of an adhesive copolymer and polyolefin polymers that are wrap extruded, one over the other. Field applied products 3M: SK 134, SK6233, SK6352 Toughkote, SK 314, SK 323, SK 206N, SK 226N, SK 6251 DualKote SK-6171, SK 206P, SK226P, 3M Internal Coatings: Coupon EP2306HP DuPont: 7-2500, 7-2501, 7-2502, 7-2508, 7-2514, 7-2803, 7-2504 Nap Gard Gold 7-2504, Nap Rock: 7-2610, 7-2617 FBE Powders DuPont: Repair Kits; 7-1631, 7-1677, 7-1862, 7-1851 DuPont Internal Coatings: 7-0008, 7-0010, 7-0014, 7-0009SGR, 7-0009LGR, 7-2530, 7-2534, 7-2509 Akzo Nobel: FBE - Fusion Bond Epoxy Internline 876 Seal Coat Hampel: 85448,97840 Denso: 7200, 7900 High Service Temperature Coatings Internal Liquid Epoxy: Powercrete Superflow

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METALS INTERNATIONAL LIMITED - DIYTrade.com Z245.21, DIN 30670,DIN 30678, API RP 5L2 and other international specifications. GOST 20295 NACE MR0175, NACE TM0177, NACE TM0284, and other