C
|
Si
|
Mn
|
S
|
P
|
N
|
≤0.10
|
≤0.10
|
≤0.60
|
≤0.015
|
≤0.025
|
≤0.006
|
屈服強(qiáng)度
|
抗拉強(qiáng)度
|
延伸率%
|
屈服比
|
縱向沖擊功
|
205-245
|
300-400
|
≥40
|
≤0.8
|
≥27
|