ASTM A312 TP 316L Seamless Pipes, ASTM TP 304L Stainless Steel Seamless Pipes, ASTM A312 316L SS Welded Pipes

ASTM A312 Stainless Steel Pipes Supplier, ASTM A312 SS Seamless Pipes, ASTM A312 SS welded Pipes Supplier

Large Diameter Fabricated Pipes as Per ASTM A312 for Sizes above 14" NB, ASTM A312 Seamless Pipes Exporter

Global Steel Alloys is one of the leading stockholder and supplier of ASTM A312 Stainless Steel Seamless Pipes and ASTM A312 Stainless Steel Welded Pipes in a number of standard sizes and grades.

Our stock of ASTM A312 SS Seamless Pipes and ASTM A312 SS Welded Pipes primarily consist of the austenitic grades of stainless steel including TP304, TP304L, TP304H, TP321H, TP321, TP316, TP316L, TP316Ti, TP310S, TP347, and TP347H in annealed and pickled, bright annealed, mill finish and polished conditions. Meanwhile, we offer certain requirements for the inspection of ASTM A312 SS Pipes such as Chemical Composition, Size, Mechanical Properties, Flattening Test, Hydrostatic Test or Eddy current test or Ultrasonic test, Surface quality and straightness.

Meanwhile, our ASTM A312 Seamless Pipes is available in different sizes, specification & thickness as per the clients’ customized requirements. We also offer these ASTM A312 Welded Pipes in quite reasonable rates to our valuable customers.

 

ASTM A312 Stainless Steel Seamless PipesASTM A312 Stainless Steel Seamless Pipes
ASTM A312 Stainless Steel Welded PipesASTM A312 Stainless Steel Welded Pipes

 

ASTM A312 Stainless Steel Pipes Manufacturer, Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes


ASTM A312 Stainless Steel Pipes Production Range and Specifications

Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes stainless steel seamless tubes also available

Length : Up to 6 meters, custom cut lengths

Thickness : 1mm to 20mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10

Type : Seamless Cold Drawn Tubes, Hot Finished Seamless Pipes, Welded Pipes, Fabricated Pipes

Grades : TP304, TP304L, TP304H, TP321H, TP321, TP316, TP316L, TP316Ti, TP310S, TP347, TP347H

Finish : No.1 Pickled Finish, No.4 finish, BA Finish, Electropolished Seamless Pipes

Delivery Condition : Hot Finish, Cold Finish, Bright Annealed, Polished, Annealed and Pickled, Passivated, Stress Relived

Products : ASTM A312 TP 304 Stainless Steel Seamless/Welded Pipes, ASTM A312 TP 316L Stainless Steel Seamless/Welded Pipes, SS 304 Seamless/Welded Pipes, SS304L Seamless/Welded Pipes, SS 316 Seamless/Welded Pipes, SS316L Seamless/Welded Pipes, SS310S Seamless/Welded Pipes, SS 317L Seamless/Welded Pipes, 446 Seamless/Welded Pipes


ASTM A312 Stainless Steel Pipes OD Tolerance

 

NPS ASTM A312 OD Tolerance
+
inch mm inch mm
1/8~1 1 /2
> 1 1 /2~4
> 4~8
> 8~18
> 18~26
> 26~34
> 34~48
1/64(0.015)
1/32(0.031)
1/16(0.062)
3/32(0.093)
1/8(0.125)
5/32(0.156)
3/16(0.187)
0.4
0.8
1.6
2.4
3.2
4.0
4.8
1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)
1/32(0.031)
0.8
0.8
0.8
0.8
0.8
0.8
0.8


ASTM A312 Stainless Steel Pipes WT Tolerance %

 

NPS ASTM A312 WT Tolerance, %
+
1/8-2 1 /2 20.0 12.5
3~18, t/D≤ 5% 22.5 12.5
3~18, t/D> 5% 15.0 12.5
≥ 20, welded 17.5 12.5
≥ 20, seamless, t/D≤ 5% 22.5 12.5
≥ 20, seamless, t/D> 5% 15.0 12.5


ASTM A312 Stainless Steel Pipes Chemical Composition %

 

Material ASTM A312 Chemical Composition % Max
C Mn P S Si Cr Ni Mo N B Nb Ti
TP304 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0 … .
TP304H 0.04-0.10 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0
TP304L 0.035 D 2.00 0.045 0.030 1.00 18.0-20.0 8.0-13.0
TP310S 0.08 2.00 0.045 0.030 1.00 24.0-26.0 19.0-22.0 0.75
TP316 0.08 2.00 0.045 0.030 1.00 16.0-18.0 11.0-14.0 2.00-3.00
TP316L 0.035 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.00-3.00
TP316H 0.04-0.10 2.00 0.045 0.030 1.00 16.0-18.0 11.0-14.0 2.00-3.00
TP316Ti 0.08 2.00 0.045 0.030 0.75 16.0-18.0 10.0-14.0 2.00-3.00 0.10 5x(C+N)-0.70
TP321 0.08 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 0.10 5C-0.70
TP321H 0.04-0.10 2.00 0.045 0.030 1.00 17.0-19.0 9.0-12.0 4C-0.60
TP347 0.08 2.00 0.045 0.030 1.00 17.0-19.0 9.0-13.0 10xC-1.00
TP347H 0.04-0.10 2.00 0.045 0.030 1.00 17.0-19.0 9.0-13.0 8xC-1.00


ASTM A312 Stainless Steel Pipes Mechanical Properties

 

Material Heat
Treatment
Temperure
Min.
º F(º C)
Tensile Strength
Ksi (MPa), Min.
Yield Strength
Ksi (MPa), Min.
Elongation %, Min
TP304 Solution 1900 (1040) 75(515) 30(205) 35
TP304L Solution 1900 (1040) 70(485) 25(170) 35
TP304H Solution 1900 (1040) 75(515) 30(205) 35
TP310S Solution 1900 (1040) 75(515) 30(205) 35
TP316 Solution 1900(1040) 75(515) 30(205) 35
TP316L Solution 1900(1040) 70(485) 25(170) 35
TP316H Solution 1900(1040) 75(515) 30(205) 35
TP316Ti Solution 1900(1040) 75(515) 30(205) 35
TP321 Solution 1900(1040) 75(515) 30(205) 35
TP321H Solution Cold: 2000(1100)
Hot: 1925(1050)
75(515) 30(205) 35
TP347 Solution 1900(1040) 75(515) 30(205) 35
TP347H Solution Cold: 2000(1100)
Hot: 1925(1050)
75(515) 30(205)


Origin of material (Make):

 


V & M France

Mannesmann Brazil

Dalmine Italy

Tubacex Spain

 


Nippon Steel & Sumitomo Metal, Japan

Sumitomo Japan

ArcelorMittal Romania

JFE Steel Corporation Japan

 


Ratnamani India

Rajendra Industrial Corporation India

Outokumpu Finland

Welspun India

 

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