C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
0.38~0.45 | ≥0.40
|
0.60~0.90 | ≥0.035 | ≥0.035 | 0.90~1.20 | ≥0.030 | 0.15~0.30 | ≥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
|
≥1080
|
≥930
|
≥12
|
≥45
|
≥63
|