C
|
Mn
|
P
|
S
|
Si
|
≤0.24
|
≤0.98
|
≤0.035
|
≤0.035
|
0.13-0.45
|
抗拉強(qiáng)度/MPa
|
屈服點(diǎn)/MPa
|
415-550
|
≥220
|