THE FUTURE IS STAINLESS STEEL - KROM … · types of stainless steel welded and seamless tubular & piping products, ... SGS, UHDE, TEIL, BUREAU VERITAS, LINDE, DAVY ... Die Penetrant

THE FUTURE IS

STAINLESS STEEL

European Countries, USA, UK, Canada, New Zealand,

East Africa, South-East Asia and Latin America.

Now the only way ahead is forward.

And this wouldn't have been possible without the support

of our employees, business partners, customers and

suppliers who are just like members of our family.

We have a simple vision: to be a name synonymous

with stainless steel. From a safety pin to automobiles,

we want to touch lives everywhere. Guided by our

creative approach, undying commitment, ability to adapt

to changing market scenarios and the skill to extract

opportunities rather than look for them, our vision

seems well within reach.

The future of stainless steel looks bright and we are

definitely adding to the shine.

The Future Is Stainless Steel.

It's amazing to see how stainless steel has gained so

much of respect as a strong, durable metal over the years.

Among alternative materials, the versatility, durability and

aesthetic quality of stainless steel makes it a material of

choice for the new millennium. Utilized in practically every

industry all over the world, the metal outshines most

others. And we can say with certainty that years from now,

the world will still run on stainless steel.

With a strong vision of the future, Prakash C. Kanugo

founded Prakash Steelage Ltd.

An ISO 9001-2008, ISO 14001-2004, OHSAS 18001-2007

& PED certified company, Prakash Steelage Ltd.

manufactures, exports and sells Stainless Steel Welded

and Seamless Pipes, Tubes and U "Tubes". It's our

dedication, competitive prices, timely delivery schedules

and rapid progress in quality assurance and human

resource and development systems that has catapulted us

to where we are today.

Besides India, MNCs the world over are talking about the

excellent quality of our products. Till date we have

exported to a diverse set of industries including Oil & Gas,

Power, Pharmaceutical, Petrochemical, Sugar, Dairy,

Automobile, Desalination, etc. in more than 40 countries

including Australia, Brazil, Middle - East, South Africa,

Our main production equipment for the manufacture of

Seamless and Welded Pipes, Tubes and U "Tubes" are:

Hot mill for manufacturing seamless mother hollows

Large diameter Tube Mill for Oil and gas sector

State of the Art Large diameter EFW Pipe Facility

Online Welded Tube-mills with In-Line Bright Annealing,

polishing, eddy current testing and marking

Full & Half Ring Die Pilger Mills

U-Bending Machine

U-Bend Radius heating facility

Automated draw benches

Automated 5 rolls straightening machine

Off-line bright annealing furnace

LPG fired solution annealing furnace

•

•

•

•

•

•

•

•

•

•

•

Excellence In Manufacturing

Product Range

Outer Diameter :

6.0 mm to 114.3 mm

Thickness :

0.5 mm to 6.0 mm

Specification :

ASTM A-249, ASTM A-268, ASTM A-269,


ASTM A-778, ASTM A-789

Outer Diameter :

1/8" NB to 2 "NB

Thickness :

Up to Schedule 80S

Outer Diameter :

Above 2" NB to 8 "NB

Thickness :

Up to Schedule 40S

Specification :

ASTM A-312, ASTM A-554,


Outer Diameter :

125.0 mm to 610.0 mm

Thickness :

2.0 mm to 20.0 mm

S.S. WELDED TUBES

S.S. WELDED PIPES

S.S. EFW PIPES

Specification :

ASTM A-358, ASTM A-409,


Outer Diameter :

60.0 mm to 168.3 mm

Thickness :

4.0 mm to 20.0 mm

Outer Diameter :

6.0 mm to 114.3 mm

Thickness :

0.45 mm to 6.0 mm

Specification :



Outer Diameter :

1/8" NB to 10 "NB

Thickness :

Available in all Schedule Sizes

Specification :


Outer Diameter :

12.5 mm to 50.8 mm

S.S. SEAMLESS MOTHER HOLLOWS

S.S. SEAMLESS TUBES

S.S. SEAMLESS PIPES

U-BEND TUBING

Specializes in meeting specific requirements of customers and offer complete piping and tubing Solutions par excellence.

We also manufacture products as per ASME, DIN, API 5LC Monogram,

JIS, BS, NFA, Gost and other equivalent standards.

Thickness :

Up to 3.5 mm

Leg length :

15.0 meters

Center Line radius :

22.20 mm to 1220.0 mm

U-Tubes as per Customer's Drawing

Austenitic :

TP-304/L/LN/H, TP-310, TP-316/L/LN/H/Ti,

TP-317/L, TP-321/H, TP-347/H

Ferritic :

TP-405, TP-409, TP-410, TP-429,

TP-430/Ti, TP-439L/Ti

Duplex & Super Duplex :

UNS 31254, UNS31500, UNS31803,UNS32205,

UNS32304 UNS32750, UNS32760

API 5LC :

LC30-1812, LC30-2242, LC52-1200,

LC65-2205, LC65-2506

Random Length / Fixed Length

30 Meters in Developed Length

We can ship up to 22 Meters in Straight Length

S.S. GRADES

LENGTHS

Applications

We are on our way to being Stainless Steel - Pipe & Tube makers, the world looks up to. And the

only way to do so is by supplying premium products of the highest quality. We manufacture several

types of stainless steel welded and seamless tubular & piping products, which cater to a wide range

of industries and equipment all over the world.

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

Boilers

Breweries

Chemicals & Fertilizers

Condensers

Coolers

Desalination

Digesters

Evaporators

Feedwater Heaters

Fin Tubes

Food & Dairies Industries

Heat Exchangers

Heating Elements

Instrumentations

Metallurgical Industries

Automobile Industries •

•

•

•

•

•

•

•

•

•

•

Oil & Gas Industries

Ornamental & Furniture

Power Plants

Pharmaceuticals

Pulp & Paper Mills

Pumps & Valves

Refrigeration

Recuperators

Ship and Hydraulic

Fabrication

Sugar Industries

Space Applications

6

Quality That Outshines

Providing our customers with premium quality products has always been a driving force in our

company. The International quality products we manufacture go through exhaustive R&D and

rigorous inspection. Continuous standardized quality assurance, control and improvement

programs ensure the best possible product at competitive prices. Our products can be approved

and inspected by any of these internationally renowned inspection agencies like: EIL, Lloyds,

BVQI, BVIS, TUV, SGS, UHDE, TEIL, BUREAU VERITAS, LINDE, DAVY, JE, DNV, IBR, MOODY

etc. To ensure that our products are of the most premium quality, we have a sophisticated testing

facility to carry out various inspections and tests to ensure superior quality and sustainability.

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

•

Mechanical Testing & Chemical Testing

In-House Spectrometer

In-House PMI (Positive Material Indentification) Tester for Mix-Up control and Traceability

Hydro Tester - For straight, U "Tubes" and Bigger Diameter Pipes

Micro-scope with Image Analyzer for Micro-structure Test and Analysis

Corrosion Testing

Chloride Contamination Testing

Bath Analysis Testing, Die Penetrant Test & Residual Stress Measurement

Air Under Water Testing

Universal Testing Machine

Digital Hardness Tester

IGC Test

Eddy Current Testing

Ultrasonic Testing

Ferrite Content Measurement

Radiography / Radioscopy

Surface Roughness Tester

Fibroscope (for checking inside surface of tubes 10mm OD and above)

So that even after years, the durability and resilience of our products shine through.

Quality & Testing Equipment Includes :

7

ANSI B36.19/B36.10 Stainless steel pipe dimension in mm & weight per kg

Formula-Pipe Weight Kg/Mtr. (OD-Thick) x Thick x 0.02466=kg per mtr.

NominalPipe Size

OutsideDiameter

Schedule5 S

Schedule10 S

Schedule40 S

Schedule80 S

Schedule160 S

ScheduleXXS

mm inch mm Wt mm Weight (KGM) Wt mm Weight (KGM) Wt mm Weight (KGM) Wt mm Weight (KGM) Wt mm Weight (KGM) Wt mm Weight (KGM)

6

8

10

15

20

25

32

40

50

65

80

90

100

125

150

200

250

300

350

400

450

500

550

600

750

1/8

1/4

3/8

1/2

3/4

1

1 1/4

1 1/2

2

2 1/2

3

3 1/2

4

5

6

8

10

12

14

16

18

20

22

24

30

10.30

13.70

17.10

21.30

26.70

33.40

42.20

48.30

60.30

73.00

88.90

101.60

114.30

141.30

168.30

219.10

273.10

323.90

355.60

406.40

457.00

508.00

559.00

610.00

762.00

-

-

-

1.65

1.65

1.65

1.65

1.65

1.65

2.11

2.11

2.11

2.11

2.77

2.77

2.77

3.40

3.96

3.96

4.19

4.19

4.78

4.78

5.54

6.35

-

-

-

0.80

1.03

1.30

1.65

1.91

2.40

3.69

4.51

5.18

5.84

9.47

11.32

14.79

22.63

31.25

34.36

41.56

46.81

59.25

65.24

82.47

118.31

1.24

1.65

1.65

2.11

2.11

2.77

2.77

2.77

2.77

3.05

3.05

3.05

3.05

3.40

3.40

3.76

4.19

4.57

4.78

4.78

4.78

5.54

5.54

6.35

7.92

0.28

0.49

0.63

1.00

1.28

2.09

2.70

3.11

3.93

5.26

6.45

7.40

8.36

11.57

13.84

19.96

27.78

36.00

41.30

47.29

53.26

68.61

75.53

94.45

147.36

0.37

0.63

0.84

1.27

1.69

2.50

3.39

4.05

5.44

8.63

11.29

13.57

16.07

21.77

28.26

42.55

60.31

73.88

2.41

3.02

3.20

3.73

3.91

4.55

4.85

5.08

5.54

7.01

7.62

8.08

8.56

9.53

10.97

12.70

12.70

12.70

0.47

0.80

1.10

1.62

2.20

3.24

4.47

5.41

7.48

11.41

15.27

18.63

22.32

30.97

42.56

64.64

96.01

132.08

-

-

-

4.78

5.56

6.35

6.35

7.14

8.74

9.53

11.13

-

13.49

15.88

18.26

23.01

28.58

33.32

-

-

-

1.95

2.90

4.24

5.61

7.25

11.11

14.92

21.35

-

33.54

49.11

67.56

111.27

172.33

238.76

1.73

2.24

2.31

2.77

2.87

3.38

3.56

3.68

3.91

5.16

5.49

5.74

6.02

6.55

7.11

8.18

9.27

9.53

7.47

7.82

9.09

9.70

10.15

11.07

14.02

15.24

-

17.12

19.05

21.95

22.23

25.40

25.40

2.55

3.64

5.45

7.77

9.55

13.44

20.39

27.68

-

41.03

57.43

79.22

107.92

155.15

186.97

8

Chemical Composition200 & 300 Series

AISI / ASTM

TP 201

TP 202

TP 301

TP 304

TP 304L

TP 304N

TP 304LN

TP 308

TP 309

TP 309S

TP 310

TP 310S

TP 316

TP 316L

TP 316N

TP 316LN

TP 316Ti

TP 317

TP 317L

TP 321

TP 347

UNS S31254

C MAX

0.15

0.15

0.15

0.08

0.035

0.080

0.035

0.08

0.20

0.08

0.25

0.080

0.080

0.035

0.080

0.035

0.080

0.080

0.035

0.080

0.080

0.02

Mn MAX

5.5-7.5

7.5-10.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.0

P MAX

0.060

0.060

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.045

0.03

S MAX

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.030

0.010

Si MAX

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.00

1.50

1.00

1.00

1.00

1.00

1.00

0.75

1.00

1.00

1.00

1.00

0.80

Mo

-

-

-

-

-

-

-

-

-

-

-

-

2-3

2-3

2-3

2-3

2-3

3-4

3-4

-

-

6.0 - 6.5

Other Elements

N-0.25 MAX

N-0.25 MAX

N-0.10 MAX

-

-

N - 0.10 - 0.16

N - 0.10 - 0.16

N - 0.10 - 0.16

N - 0.10 - 0.16

Ti - 5(C+N)- 0.70/N-0.10 MAX

Ti - 5(C+N)- 0.70

Nb - 10XC - 1.10

N 0.18 - 0.22 and Cu 0.5 - 1.0

16-18

17-19

16-18

18-20

18-20

18-20

18-20

19-21

22-24

22-24

24-26

24-26

16-18

16-18

16-18

16-18

16-18

18-20

18-20

17-19

17-20

19.5 - 20.5

Cr

3.5-5.5

4-6

6-8

8-11

8-12

8-11

8-11

10-12

12-15

12-15

19-22

.19-22

10-14

10-14

10-13

10-13

10-14

11-15

11-15

9-12

9-13

17.5 - 18.5

NiSteel No Equivalent to

DIN EN

1.4372

1.4373

1..4310

1.4301

1.4307

-

1.4311

-

-

1.4833

-

1.4845

1.4401

1.4404

-

1.4406

1.4571

-

1.4438

1.4541

1.4550

400 Series

AISI

TP 405

TP 409

TP 410

TP 429

TP 430

TP 430Ti

TP 439

C MAX

0.080

0.080

0.15

0.12

0.12

0.10

0.070

Mn MAX

1.00

1.00

1.00

1.00

1.00

1.00

1.00

P MAX

0.040

0.045

0.040

0.040

0.040

0.040

0.040

S MAX

0.030

0.030

0.030

0.030

0.030

0.030

0.030

Si MAX

1.00

1.00

1.00

1.00

1.00

1.00

1.00

Mo

-

-

-

-

-

-

-

Other Elements

AL - 0.10 - 0.30

Ti - 6 X C MIN 0.75 MAX

-

-

-

Ti - 5XC MIN; 0.75 MAX.

11.5 - 14.5

10.5 - 11.7

11.5 - 13.5

14 - 16

16 - 18

16 - 19.5

17 - 19

Cr

0.5

0.50

-

-

-

0.75

0.50

Ni MAXSteel No Equivalent to

DIN EN

-

1.4512

1.4006

-

1.4016

1.4510

- N - 0.04 MAX,

Ti - 0.20+4(C+N) MIN; 1.10 MAX

Duplex & Super Duplex Grades

UNS S31500

UNS S 31803

UNS S 32205

UNS S 32304

UNS S 32750

UNS S 32760

C MAX

0.030

0.030

0.030

0.030

0.030

0.050

Mn MAX

1.20 -2.00

2.00

2.00

2.50

1.20

1.00

P MAX

0.030

0.030

0.030

0.040

0.035

0.030

S MAX

0.030

0.020

0.020

0.040

0.020

0.010

Si MAX

1.40-2.00

1.00

1.00

1.00

0.80

1.00

Mo

2.5-30

2.5-3.5

3-3.5

0.05 -0.60

3 - 5

3 - 4

Other Elements

N - 0.05 - 0.1

N - 0.08 - 0.20

N - 0.14 - 0.20

N 0.05 - 0.20 Cu 0.05 0.60

N - 0.24 - 0.32;Cu - 0.5 Max

18 -19

21 - 23

22 - 23

21.5 -24.5

24 - 26

24 - 26

Cr

4.3 - 5.2

4.5 - 6.5

4.5 - 6.5

3.0 - 5.5

6 - 8

6 - 8

Ni

1.4417

1.4462

-

1.4362

1.4410

1.4501 N - 0.20 - 0.30;Cu - 0.5 - 1.0;

W - 0.5-1.0,

%Cr+3.3x%Mo+16x%N = 40 MIN

API Specification 5LC

LC30-1812

LC52-1200

LC65-2205

LC65-2506

LC30-2242

C MAX

0.030

0.080

0.030

0.030

0.050

Mn MAX

2.00

1.00

2.00

1.00

1.00

P MAX

0.040

0.040

0.030

0.030

0.030

S MAX

0.030

0.030

0.020

0.030

0.030

Si MAX

0.75

0.75

1.00

0.75

0.50

Mo

2.0 - 3.0

-

2.5 - 3.5

2.5 - 3.5

2.5 - 3.5

Other Elements

N 0.16 Max

N - 0.08 - 0.20

Cu - 1.5 - 3.0 , Ti - 0.6 -1.20

16 - 18

11.5 - 13.5

21 - 23

24 - 26

19.5 - 23.5

Cr

10 -15.0

0.5 max

4.5 - 6.5

5.5 - 7.5

38 - 46

NiUNS CATEGORY

S 31603

S 41008

S 31803

S 31260

N 08825

N - 0.1 - 0.3, Cu - 1.5 Max,

W - 0.50 MAX

9

Physical Properties

Grade Tensile Str. KSI(MPA)

Yeild Str. KSI(Mpa)

Elongation in 2 inches

% min Brinnel (HBW)

Rockwell(HRB)

Max. Hardness Thermal Conductivity

Col/sec.cm ºc At Temp Range

20-500 ºc

Co-efficient of Expantion

X 101 Cm/cm/c At Temp. Range

20-870 ºc

TP 301

TP 304

TP 304L

TP 304N

TP 304LN

TP 309

TP 310

TP 316

TP 316L

TP 316Ti

TP 316N

TP 316LN

TP 317L

TP 321

347

405

410

429

430

430Ti

439

UNSS31803

UNS S 32205

UNS S32750

UNS S32760

(75) 515

(75) 515

(70) 485

(80) 550

(75) 515

(75) 515

(75) 515

(75) 515

(70) 485

(75) 515

(80) 550

(75) 515

(75) 515

(75) 515

(75) 515

(60) 415

(60) 415

(60) 415

(60) 415

(60) 415

(60) 415

(90) 620

(95) 655

(116) 800

(109) 750

(30) 205

(30) 205

(25) 170

(35) 240

(30) 205

(30) 205

(30) 205

(30) 205

(25) 170

(30) 205

(35) 240

(30) 205

(30) 205

(30) 205

(30) 205

(30) 205

(30) 205

(35) 240

(35) 240

(35) 240

(30) 205

(65) 450

(70) 485

(80) 550

(80) 550

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

20

20

20

20

20

20

25

25

15

25

192

192

192

192

192

192

192

192

192

192

192

192

192

192

192

207

207

190

190

190

190

290

290

300

300

90

90

90

90

90

90

90

90

90

90

90

90

90

90

90

95

95

90

90

90

90

30 HRC

30 HRC

32 HRC

0.051

0.051

0.051

0.051

0.051

0.045

0.044

0.042

0.042

0.042

0.038

0.042

0.049

0.051

0.053

0.064

0.059

0.061

0.062

0.062

0.057

0.041

0.041

0.040

0.035

19.8

19.9

19.8

19.9

19.8

19.9

18.8

19.3

19.3

19.3

19.3

19.3

17.5

19.8

19.9

10.8

9.9

10.3

10.5

10.5

11.5

16.9

16.9

14.2

13.8


Grade Tensile Strength, Min. PSI(MPA)

Yeild Strength,Min. PSI(MPA)

Elongation Minpercent in 2''

UNS No.

LC30-1812

LC52-1200

LC65-2205

LC65-2506

LC30-2242

70,000 (482)

66,000 (455)

90,000 (621)

95,000 (656)

80,000 (551)

30,000 (207)

52,000 (358)

65,000 (448)

65,000 (448)

30,000 (207)

25

20

25

25

30

Brinnel (HBW) Rockwell (HRc)

Max. Hardness

-

22

-

-

-

S31603 or S31653

S41008

S 31803

S31260

N08825

10

ASTM Specifications - S. S. Tube & Pipes

Specification Allowable Outside DiameterVariation in mm

Allowable Wall Variation in %

Thickness Exact Length Toterance

Testing

Nominal DiameterASTM A 213

Under 25 mm.

25 To 40 mm Incl.

40 To 50 mm Excl.

50 To 65 mm Excl.

65 To 75 mm Excl.

75 To 100 mm Incl.

100 To 200 mm Incl.

200 To 225 mm Incl.

Over mm Under mm

Seamless Boiler

Super Heater

And Heat

Exchanger Tubes

0.1

0.15

0.2

0.25

0.3

0.38

0.38

0.38

0.11

0.15

0.2

0.25

0.3

0.38

0.64

1.14

% Over % Under

Under 38.1 mm OD --- +20% / - 0

Over 38.1 mm OD --- +22% / - 0

Over Under

Under 50.8 mm

OD --- 3 mm

Over 50.8 mm

OD --- 5 mm

Tension Test

Flattening Test

Flaring Test

Hardness Test

100% Hydrostatic

Test Refered

Astm A 1016

Out Side DiameterASTM A 249

Under 25 mm.

25 To 40 mm Incl.

40 To 50 mm Excl.

50 To 65 mm Excl.

65 To 75 mm Excl.

75 To 100 mm Incl.

100 To 200 mm Incl.

200 To 225 mm Incl.

Welded Super

Heater And

Heat Exchanger And

Condenser Tube

0.1

0.15

0.2

0.25

0.3

0.38

0.38

0.38

0.11

0.15

0.2

0.25

0.3

0.38

0.64

1.14

Thickness %

Under 50.8 mm

OD --- 3 mm

Over 50.8 mm

OD --- 5 mm

Tension Test

Flattening Test

Flange Test

Reverse Bend Test

Hardness Test

100% Hydrostatic

Test Refered

Astm A 1016

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

Over Under

Length


Up To 12.7 mm Excl

12.7 To 38.1 mm Excl


88.9 To 139.7 mm Excl

139.7 To 203.2 mm Excl

Seamless Welded

Ferritic & Martensitic

Stainless Steeltubing

For General Service

0.13

0.13

0.25

0.38

0.76

0.13

0.13

0.25

0.38

0.76

Thickness %

Tension Test

Flaring Test (Seamless)

Flange Test (Welded)

Hardness Test

15

10

10

10

10

15

10

10

10

10

3

3

5

5

5

Length mm

0

0

0

0

0

Up To 12.7 mm

12.7 To 38.1 mm Incl.

38.1 To 76.2 mm Excl.

76.2 To 139.7 mm Excl.

139.7 To 203.2 mm Excl.

203.2 To 304.8 mm Incl.

304.8 To 355.6 mm Incl.

Seamless & Welded

Tubing For

General Services

0.13

0.13

0.25

0.38

0.76

1.01

1.26

0.13

0.13

0.25

0.38

0.76

1.01

1.26

Tension Test

Flaring Test

Flange Test (Welded)

Reverse Flattening

Test(welded)

Hardness Test

100% Hydrostatic

Test Refered

Astm A 1016

15

10

10

10

10

10

10

15

10

10

10

10

10

10

3.2

3.2

4.8

4.8

4.8

4.8

4.8

0

0

0

0

0

0

0

Out Side DiameterASTM A 269 Thickness % Length mm

Reverse Flattening

Test (Welded) 100%

Hydrostatic Test Refered

Astm A 1016

11





Testing


1/8'' NB TO 1.5'' NB Incl.

1.5'' NB TO 4'' NB Incl.

4'' NB TO 8'' NB Incl.





Seamless,

Welded &

Heavily Cold

Worked

Austenitic

Stainless Steel

Pipes

0.4

0.8

1.6

2.4

3.2

4

4.8

Thickness %

For Random

Lengths - 15 ft

To 24 ft And

For Fix Length

-0 /+6 Mm

Tension Test

Flattening Test

20

22.5

15

17.5

22.5

15

12.5

12.5

12.5

12.5

12.5

12.5

Length mm Tests

% Over % UnderOver mm Under mmNps Designator

0.8

0.8

0.8

0.8

0.8

0.8

0.8

100% Hydrostatic

Test Referedastm A 999


219.08 - 750 mmWelded Pipes

Class 1To Class 50.5%

Thickness mm

Hydro Test Refers

To Astm A 999

-0.3 MM

Length mm Tests

Over UnderOver % Under %Nps Designator

- -

1/8'' NB To 2.5'' NB

Incl. All t/D Ratio

3'' NB To 18'' NB Incl.

t/D Upto 5% Incl.


t/D >5%

20 And Larger,

Welded All t/D Ratio

20 And Larger,

Seamless t/D Upto 5%

20 And Larger,

Seamless T/D >5%

Nominal DiameterASTM A 789

Up To 12.7 mm Excl



88.9 To 139.7 mm Excl

139.7 To 203.2 mm Excl

Over mm Under mm

Seamless & Welded

Ferritic/ Austenitic

Stainless Steeltubing

For General Service

0.13

0.13

0.25

0.38

0.76

0.13

0.13

0.25

0.38

0.76

% Over % Under Over Under

Flaring Test (seamless)

Flange Test ( Welded)

Hardness Test

Reverse Flattening

Test(welded)

100% Hydrostatic Test

Refered Astm A 1016

15

10

10

10

10

15

10

10

10

10

3

3

5

5

5

0

0

0

0

0


Under 25.4 mm.

25.4 To 50.8 mm Incl.

50.8 To 76.2 mm Excl.

76.2 To 101.6 mm Excl.

101.6 To 139.7 mm Excl.

139.7 To 203.2 mm Incl.

203.2 To 304.8 mm Incl.

Seamless & Welded

Sanitary Tubing

0.13

0.2

0.25

0.38

0.38

0.76

1.27

0.13

0.2

0.25

0.38

0.38

0.76

1.27

Thickness %

Reverse Flattening

Test(welded)

100% Hydrostatic

Test Refered

Astm A 1016

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

Length

3.2

3.2

3.2

3.2

4.8

4.8

4.8

0

0

0

0

0

0

0

12





Testing


1/8'' NB TO 1.5'' NB Incl.

1.5'' NB TO 4'' NB Incl.






Seamless & Welded

Ferritic/ Austenitic

Stainless Steel Pipe

0.4

0.8

1.6

2.4

3.2

4

4.8

Thickness %

For Random

Lengths - 15 ft

To 24 ft And

For Fix Length

-0 /+6 Mm

Tension Test

Flattening Test

Hardness Test

100% Hydrostatic

Test Refered

Astm A 999

20

22.5

15

17.5

22.5

15

12.5

12.5

12.5

12.5

12.5

12.5

Length mm Tests

% Over % UnderOver mm Under mmNps Designator

0.8

0.8

0.8

0.8

0.8

0.8

0.8

1/8'' NB To 2.5'' NB

Incl. All t/D Ratio


t/D Upto 5% Incl.


t/D >5%

20 And Larger,

Welded All t/D Ratio

20 And Larger,

Seamless t/D Upto 5%

20 And Larger,

Seamless T/D >5%


Outside Diameter

Pipe Body

1.900 In. And Smaller

2 3/8 In. Through 18 In.

20 In. Through 36 In.

Larger Than 36 In.

+0.016 in. (0.41 mm)

-0.031 in. (0.79 mm)

± 0.75 %

± 1.00 %

± 1.00 %

Wall Thickness

Size (OD in.) and Process

2.875 and smaller,

seamless and welded

3.50 seamless &

welded

4.00 through 18,

seamless and welded

20 and larger,

welded

20 and larger,

seamless

+ 15.0

- 12.5

+ 15.0

- 12.5

+ 15.0

- 12.5

+ 19.5

- 8.0

+ 17.5

- 10.0

Tolerance, percent All grades

13

InspectionU-Bending

by Cold ProcessStress Relieving at Bend Portion

Seamless/ Welded Straight Tubes

Passivation Pickling Deburring Cutting

Testing Inspection Marking Packing Dispatch

U-Tubes

Large Diameter Welded Pipes

Coil Cut to Length Plate Edge Crimping Forming

Tack WeldingGaugingDegreasing & PicklingInside Welding

Outside Welding Gauging X-Ray Testing Straightening

Heat TreatmentGauging/StraighteningPicklingBevelling

Hydro Testing Marking / Weighing Packing Dispatch

Seamless Pipes, Tubes

Raw material Cutting Billet Machining and Centering Inspection Heating

Hot Process of Hollow MakingStraightening & CuttingDegreasing & PicklingInspection

Pilgering Heat Treatment Straightening & Cutting Chemical Coating

Cold DrawingHeat TreatmentStraighteningPickling

Testing Bevelling Inspection Marking Packing

Welded Pipes and Tubes

Coil Inspection Slitting Forming, Welding & Sizing

Heat TreatmentPicklingChemical Coating

Cold Drawing Heat treatment Straightening Passivation

BevellingInspectionMarkingPackingDispatch

Cut to length

Testing

Manufacturing Process Flow Charts

Dispatch

If Heat Treatment is in Bright Annealed Condition then Pickling is not to be considered

Straightening

Pickling

14

Documents

THE FUTURE IS STAINLESS STEEL - KROM … · types of stainless steel welded and seamless tubular & piping products, ... SGS, UHDE, TEIL, BUREAU VERITAS, LINDE, DAVY ... Die Penetrant