|
標準
|
牌號
|
化學成分（%）
|
機械性能
|
||||||||||
|
C
|
Si
|
Mn
|
P
|
S
|
Cu
|
Ni
|
Mo
|
Cr
|
V
|
抗拉強度Mpa
|
屈服強度Mpa
|
||
|
ASTM
|
A
|
≤0.25
|
-
|
≤0.95
|
≤0.05
|
≤0.06
|
≤0.40
|
≤0.40
|
≤0.15
|
≤0.40
|
≤0.08
|
≥330
|
≥205
|
|
A53
|
B
|
≤0.30
|
-
|
≤1.20
|
≤0.05
|
≤0.06
|
≤0.40
|
≤0.40
|
≤0.15
|
≤0.40
|
≤0.08
|
≥415
|
≥240
|
|
ASTM
|
B
|
≤0.30
|
≤0.10
|
0.29~1.06
|
≤0.035
|
≤0.035
|
≤0.40
|
≤0.40
|
≤0.15
|
≤0.40
|
≤0.08
|
≥415
|
≥240
|
