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Metals International Limited offers a wide range of Stainless Steel Pipes & Tubes includingseamless/welded stainless tube, U-tube,Coiled Tube in various finishes and grades.
Metals International Limited owns 40 senior engineers, and we have achieved the certificates ofISO9001:2000, PED, TUV, Lloyd’s, Moody International, ASME, DNV, GOST,API 5LC and theLicense of Special Equipments Production (Pressure piping). We have 8 lines cold-drawn steelpipe mill, and also 19 advanced lines of type LG120-H/LG60-H/LG30-H/LG30/LD30/LG15enhanced cold-rolling mill in our factory. As well as a testing centre with advanced equipments,such as mechanical experiments, ultrasonic testing/eddy current testing, hydraulic test,intergranular corrosion, metallurgical microscopy, spectral analysis system. And full sets ofanalyzing equipments.
All kinds ofstainless steel tubes are produced by us with size covering outside diametersφ0.8-3600mm, wall thickness in 0.2-150mm and major material are 304/304L(1.4301/1.4307);316/316L (1.4401/1.4404);316Ti(1.4571); 321(1.4541); 310S(1.4845); 317L(1.1138);321H(1.4878); 304H(1.4948); 347H(1.4550);S32304;S31803/S32205(1.4462);S32750;904LStandard:API 5LC, EN 10216-5;DIN 17456;DIN17458;DIN17459;ASTM A213/ASTMA312/ASTM A269/ASTM A789/ASTM A790/ASTM A511/ASTM A376;JIS G3459;JISG3463;GOST 9940GOST 9941 or standards stipulated in the technical agreement.
The mission of Metals International Limited is to provide an environment that encourages anentrepreneurial spirit among its employees that leads to the best relationships with mills andcustomers. We strive to be the Company that others want to do business with – on win-winbasis transaction. Our extensive knowledge in metal has allowed us to save our customers timeand reduce their costs.
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Hygienic Tube Mill Seamless Tube Mill
EFW Tube Mill Welded Pipe Mill
Slitting Line JCOE Equipment
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Products
SMLS Tube BA/MP Tube
U-Tube Coiled Tube
Welded Pipe SMLS Pipe
Packaging Shipment
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Manufacturing Facilities
» 2 Fully Inline Condenser Tube Mills» 8 Tube Mills» 4 Pipe Mills» Coil Slitting Machines» Overhead Cranes»Inhouse Argon Gas Mixing Plant
»Pilger Machines» Draw Benches
» 1600MT Press Brake Machine For Pipe Forming
» Three Rolls Bending Machine For Pipe Forming» Tri-cathode Imported Tig Welding Sets
» Laser Welding
» Plasma Welding
» Submerged Arc Welding
» Automatic Circumferential Welding
» Automatic Large Pipe Outside & Inside Welding
» Continuous Roller Hearth Furnace» Bogie Furnace For Large Pipes
» Inline Bright Annealing» Straightening Machines» Pickling Apparatus» Multiple Head Tube Polishing Machine» Pipe Beveling Machines» Plate Beveling Machines
» Tube Bending CNC Machines
» U-bend Annealing Machine» DM Water Treatment Plant
» Product Marking Machines» Fully Equipped Tool Room& Mechanical Workshop
» Captive Power Generation
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MIL carries a Quality Management System certified in accordance with the
ISO 9001:2008 standard. The well-deserved certification is the result of high
and consistent standards of processes, which is reflected in the high quality of
the products.
An independent quality assurance department is responsible for work
procedures required to ensure that manufacturing processes are carried out
in accordance with international technical delivery conditions given in ASTM,
ASME, EN, IS and customer specifications.
To guarantee high quality, MIL procures its raw material from top-notch
vendors of international repute. The manufacturing is carried out under strict
process control and monitored throughout the production process to ensure
total conformity to requisite specifications.
All through the process and finally before dispatch, uncompromising and
stringent tests are carried out as per the standards specifications or customer
specific requirements.
Every single piece of tube is subjected to a thorough visual inspection by
trained staff to detect dimensional inaccuracies, surface imperfections etc.
To ensure complete identification and traceability even after supplies are
effected, all the information as required by the standards, i.e. brand name,
size, grade, specifications, heat number is marked on all the pipes and tubes.
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INSPECTION & TESTS
NON DESTRUCTIVE TESTS (NDT)» Eddy Current Offline & Online
» Radiography» Ultrasonic» Hydrostatic» Pneumatic Leak» Surface Roughness» Positive Material Identification (PMI)» Liquid Dye Penetrant» Ultrasonic Thickness Testing» Laser Dimension Checking» Optical Pyrometer
Mechanical / Physical» Tensile» Flattening» Flaring» Hardness» Reverse Bend» Reverse Flattening» Impact» Root Bend» Face Bend» Residual Chloride Salt Contamination» Drift Expansion» Ferrite content measurement» Residual stress measurementMetallurgical» Corrosion Tests as per IGC pr. A, B, C & E
» Micro Structure and Grain size determination
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Material Comparison
Chinese FSU Germany France Japan United States of America
(GB) (TOCT) (DIN) (NF) (JIS) AISI/ ASTM UNS SAE
0Cr18Ni9 08X18H10 X5CrNi18.9 Z6CN18.09 SUS304 304 S30400 30304
00Cr18Ni10 03X18H11 X2CrNi18.9 Z2CN18.09 SUS304L 304L S30403 30304L
0Cr19Ni9N — — — SUS404N1 304N S30451 —
00Cr18Ni10N — X2CrNiN18.10Z2CN18.10
SUS304LN 304LN S30453 —(Az)
0Cr23Ni13 — X7CrNi23.14 — SUS309S 309S S30908 30309S
0Cr25Ni20 — — — SUS310S 310S S31008 30310S
0Cr17Ni12Mo2 08X17H13M2T X5CrNiMo18.10 Z6CND17.12 SUS316 316 S31600 30316
00Cr17Ni14Mo2 03X17H14M2 X2CrNiMo18.10 Z2CND17.12 SUS316L 316L S31603 30316L
0Cr17Ni12Mo2N — — — SUS316N 316N S31651 —
00Cr17Ni13Mo2N — X2CrNiMoN18.12Z2CND17.12
SUS316LN 316LN S31653 —(AZ)
0Cr19Ni13Mo3 08X17H15M3T X5CrNiMo17.13 — SUS317 317 S31700 30317
1Cr18Ni9Ti 12X18H9T X12CrNiTi18.9 Z10CNT18.10 SUS321 321 S32100 30321
0Cr18Ni10Ti 08X18H10T X10CrNiTi18.9 Z6CNT18.11 SUS321 321 S32100 30321
0Cr18Ni11Nb 08X18H12B X10CrNiNb18.9 Z6CNNb18.10 SUS347 347 S34700 30347
0Cr13 08X13 X7Cr13、X7Cr14 Z6C13 SUS410S 410S S4108 —
1Cr13 12X13 X10Cr13 Z12C13 SUS410 410 S41000 51410
2Cr13 20X13 X20Cr13 Z20C13 SUS420J1 420 S42000 51420
1Cr17 12X7 X8Cr17 Z8C17 SUS430 430 S43000 51430
00Cr18Mo2 — — — SUS444 18Cr2Mo — —
1Cr25Ti 15X25T X8Cr28 — — 446 S44600 51446
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Technical ConditionsTrade UNS Chemical Composition ( % ) Delivery Mechanical Properties
Desig. No. Condition
Tensile
Strength
MPa
Yield Strength
(0.2% offset)
MPa
Elonga
tion%Hardness
C Mn Cr Mo Ni Others Min. Min. Min. Max.
Austenitic Stainless Steels
304 S30400 0.05 1.5 18.5 9 Annealed 515 205 40 92
304L S30403 0.02 1.5 18.5 9 Annealed 485 170 40 88 HRB
308L S30803 0.02 1 19.5 10.5
309 S30900 0.05 1.5 23 13.5
310 S31000 0.08 1.5 25 20 Annealed 515 205 40 95 HRB
316 S31600 0.05 1 17 2 11 Annealed 515 205 40 95 HRB
316L S31603 0.02 1 17 2 11 Annealed 485 170 40 95 HRB
515 205 40
321 S32100 0.04 1 18 9 Ti 0.5 Annealed 515 205 40 95 HRB
347 S34700 0.04 1 18 9 Nb 0.7 Annealed 515 205 40 92 HRB
904L N08904 0.02 1 20 4.5 24 Cu 1.5 Annealed 550 250 40 84 HRB
2111HTR S30815 0.08 0.6 21 11 N 0.16 Annealed 600 310 40 95 HRB
Ce 0.06
4565S S34565 0.02 6 24 5 17 N 0.45 Annealed 900 450 40
Ferritic Stainless Steels
3CR12 S41003 0.03 1 11.5 Annealed 460 300 20 160 HRB
409 S40900 0.06 1 11 Ti 0.4 Annealed 380 205 20 80 HRB
430 S43000 0.03 0.4 16.5 Annealed 450 205 22 88 HRB
430F S43020 0.07 1 16.5 S 0.25 Annealed 590-860 - - -
444 S44400 0.02 0.8 18 2 Ti 0.4
Duplex Stainless Steels
2205 S31803 0.02 0.8 22 3 N 0.15 Annealed 620 450 25 32 HRC
Zeron100 S32760 0.02 0.8 25 3.5 N 0.25 Annealed 800 600 30 25
Cu 0.7
W 0.7
Martensitic Stainless Steels
410 S41000 0.1 0.5 12 Annealed 450 205 20 95 HRB
416 S41600 0.12 1 12
420 S42000 0.3 0.5 13 Annealed - - - -
431 S43100 0.2 0.6 15 Annealed - - - 285 HRB
Precipitation Hardening Stainless Steels
630 S17400 0.05 0.6 16 Cu 4 Solution Treated 1150 1050 15 38 HRC
Nb 0.25
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SPECIFICATIONSASTM A 213/A 213M
ASME SA213/SA213MSpecification for Seamless Ferric and Austenitic Alloy-Steel Boiler, Su[perheater, and Heat-Exchanger Tubes
ASTM A 249/A 249M Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser tubes
ASTM A268/A268M,
ASME SA268/SA268MSpecification Seamless and welded ferritic and martensitic stainless steel tubing for general service
ASTM A269/A269M,
ASME SA269/SA269MSpecification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
ASTM A 270 Specification for Seamless and Welded Austenitic and Ferritic/Austenitic Stainless Steel Sanitary Tubing
ASTM A312/A312M,
ASME SA312/SA312MSpecification for Seamless and Welded Austenitic Stainless Steel Pipes
ASTM A 358/A 358MSpecification for Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature
Service
ASTM A376/A376M,
ASME SA376/SA376MSeamless austenitic steel pipes for high-temperature central-station service
ASTM A409/SA409 Welded Large Diameter Austenitic Steel Pipe for Corrosive or High Temperature Service
ASTM A 450/A 450M Specificaion for General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes
ASTM A 511 Specification for Seamless Stainless Steel Mechanical Tubing
ASTM A 530/ A 530M Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
ASTM A 554 Specification for Welded Stainless Steel Mechanical Tubing
ASTM A632Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for
General Service
ASTM A 688 / SA 688 For Welded feed water heater ‘U’ Tubes
ASTM A731 / A731M Seamless and Welded Ferritic and Martensitic Stainless Steel Pipe
ASTM A 778 Specification for Welded, Unannealed Austenitic Stainless Steel Tubular Products
ASTM A789/A789M,
ASME SA789/SA789MSeamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM A790/A790M,
ASME SA790/SA790MSeamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ASTM A 999/A 999M Specification for General Requirements for alloy and Stainles Steel Pipe
ASTM A813/A813M Standard Specification for Single- or Double-Welded Austenitic Stainless Steel Pipe
ASTM A814/A814M Standard Specification for Cold-Worked Welded Austenitic Stainless Steel Pipe
ASTM A999/A999M Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
ASTM A1016/A1016MStandard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
Steel Tubes
API 5LC CRA Line Pipe- LC30-1812/LC52-1200/LC65-2205/LC65-2506/LC30-2242
API 5LD CRA Clad or Lined Steel Pipe-X42, X46, X52, X56, X60, X65, X70,X80 LC1812/LC2205/2506/LC2242/LC2262
DEP 31.40.20.34-GenWelded and seamless duplex and super duplex stainless steel line pipe (amendments/supplements to API
Spec 5LC)
DEP 31.40.20.36-GenWeldable martensitic stainless steel line pipe for use in oil and gas operations (amendments/supplements to
API Spec 5LC)
DEP 31.40.20.32-GenCRA clad or lined steel pipe (amendments/supplements to API Spec 5LD) 61.40.20.30 1999 Field welding of
duplex and super duplex stainless steel pipelines (amendments/ supplements to API 1104)
NACE MR 0175/ISO Petroleum and Natural Gas Industries –Materials for Use in H2S Containing Environments in Oil and Gas
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15156-2 Production. Part 2.Cracking resistant Carbon and Low Alloy Steels, and the Use of Cast Irons.
NACE TM 0177Laboratory Testing of Metals for Resistance to Sulfide Stress Cracking in Hydrogen Sulfide (H2S)
Environments
NACE TM 0284Standard Test Method - Evaluation of Pipeline and Pressure Vessel Steels for Resistance to
Hydrogen-Induced Cracking
EN 10216-5 Seamless steel tubes for pressure purposes
EN ISO 1127-1997 Seamless stainless steel tubes (Dimensions and weights)
BS 3605 Austenitic stainless steel pipes and tubes for pressure purposes
BS 3606 Steel tubes for heat exchangers
NF A 49-117 Seamless ferritic and austenitic stainless steel tubes for general service
NF A 49-217 Seamless ferritic, austenitic, and ferritic-austenitic stainless steel tubes for heat exchangers
NF A 49-317 Seamless plain-end austenitic stainless steel mechanical tubing
DIN 17456 Seamless circular austenitic stainless steel tubes for general service
DIN 17457 Welded circular austenitic stainless steel tubes subject to special requirements
DIN 17458 Seamless circular austenitic stainless steel tubes subject to special requirements
DIN 17459 Seamless circular high-temperature austenitic stainless steel tubes
DIN 28180-85 Seamless steel tubes for tubular heat exchangers
EN 10216-5 Welded Stainless Steel Tube
EN 10216-7 Seamless Stainless Steel Tube
EN 10217-7 Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes
EN 10296-2Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions -
Part 2: Stainless steel
AS 1528 Tubes (Stainless Steel) and Tube Fittings for the Food Industry.
JIS G3447 Stainless Steel Sanitary Pipes
JIS G3448 Light Gauge Stainless Steel Tubes for Ordinary Piping
JIS G3459 Stainless Steel Pipes
JIS G3468 Large Diameter Welded Stainless Steel Pipes
JIS G3463 Stainless Steel Boiler and Heat Exchanger Tubes
JIS G3446 Stainless Steel Pipes for Machine and Structural Purposes
GOST 9940 Seamless stainless steel tubes, hot finished
GOST 9941 Seamless stainless steel tubes, cold and hot finished
GOST 9940 Seamless stainless steel tubes, hot finished
GOST 9941 Seamless stainless steel tubes, cold and hot finished
TU 14-3-460 Seamless Steel Pipes for Steam Boilers and Pipelines
UNI 6904 Seamless tubes of special alloyed corrosion and heat resisting stainless steel
