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ASTM A312 Stainless Steel Welding Pipe

Product Description

Type: Stainless Steel Pipes Grade: 300 Series Shape: Round Surface Treatment: Bright Standard: ASTM, AISI Certification: SGS, AISI, ASTM Technique: Cold Rolled Origin: China ASTM A312 Stainless Steel Welding Pipe
Standard: ASTM A312/ASME SA312
Material: 304, 304L, 304H, 310S, 316, 316L, 316H, 316Ti, 321, 321H, 347, 347H
Size: OD(6-1016mm) X WT(1-50mm)
Application: Used in Pipeline for transporting corrosive fluid.

Inspection items:
1, Chemical Composition
2, Size
3, Mechanical Properties
4, Flattening Test
5, Hydrostatic Test or Eddy current test or Ultrasonic test
6, Surface quality, straightness
 
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
 
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

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 ^

  Mechanical Properties
ASTM A312  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) 35
 

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