C | Si | Mn | P | S | Cr | Ni | Mo |
0.32~0.40 | ≥0.40 | 0.50~0.80 | ≥0.035 | ≥0.035 | 0.90~1.20
|
0.90~1.20 | 0.15~0.30 |
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
|
≥12
|
≥55
|
≥78
|