C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
0.35~0.42 | 0.20~0.45 | 0.30~0.60 | ≤0.030 | ≤0.030 | 1.35~1.65~1.2 | ≤0.30 | 0.15~0.25 | ≤0.030 |
抗拉強(qiáng)度
|
屈服強(qiáng)度
|
斷面伸長(zhǎng)率
|
斷面收縮率
|
沖擊功
|
≥980
|
≥835
|
≥14
|
≥50
|
≥71
|