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ASTM A312, A312M ASME SA312 / SA312M Stainless Steel Seamless Tube & Pipe
Standard: ASTM A312, A312M ASME SA312 / SA312M
Material/Steel Grade: TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti, TP317, TP317L, TP321, TP321H, TP347, TP347H
Application: Seamless Austenitic Stainless Steel Pipes
Size: OD: 1/4″~20″ WT: SCH5S~SCH80S
Finish: Mill
Mechanical Properties
|
Steel Grade
|
Tensile Strength,
N/mm2 (min)
|
Yield Strength,
N/mm2 (min)
|
Elongation, % (min)
|
|
TP304
|
515
|
205
|
35
|
|
TP304L
|
485
|
170
|
35
|
|
TP316
|
515
|
205
|
35
|
|
TP316L
|
485
|
170
|
35
|
|
TP321
|
OD < 17,1 mm – 515;
OD > 17,1 mm – 485 |
OD < 17,1 mm – 205;
OD > 17,1 mm – 170 |
35
|
Chemical Composition (%, max)
|
Steel Grade
|
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
S
|
P
|
|
TP304
|
0,08
|
0,75
|
2
|
18 – 20
|
8 – 11
|
–
|
0,03
|
0,04
|
|
TP304L
|
0,035
|
0,75
|
2
|
18 – 20
|
8 – 13
|
–
|
0,03
|
0,04
|
|
TP316
|
0,08
|
0,75
|
2
|
16 – 18
|
11 – 14
|
2 – 3
|
0,03
|
0,04
|
|
TP316L
|
0,035
|
0,75
|
2
|
16 – 18
|
10 – 15
|
2 – 3
|
0,03
|
0,04
|
|
TP321
|
0,08
|
0,75
|
2
|
17 – 20
|
9 – 13
|
–
|
0,03
|
0,04
|
