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ASTM A312/ASME SA312

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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
Ss Mill, Stainless Plant, Stainless Mill

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