C | Si | Mn | P | S | Gr | Ni | Cu | V |
0.47~0.55 | 0.15~0.35 | 0.65~0.95 | ≥0.030 | ≥0.030
|
0.80~1.10 | ≥0.035 | ≥0.025 | 0.15~0.25
|
抗拉強(qiáng)度
|
屈服強(qiáng)度
|
斷面伸長(zhǎng)率
|
斷面收縮率
|
沖擊功
|
≥1274
|
≥1127
|
≥10
|
≥40
|
≥
|