| 牌号 | CH550结构用冷轧碳钢板 |
| 对应标准 |
ISO 4997-2015 结构用冷轧碳钢板 Cold-reduced carbon steel sheet of structural quality |
| 归类 | 碳钢 |
CH550 化学元素成分含量(%)
| 成分 | C | Mn | P | S | Cr | Ni | Cu | Mo | Ti ① | V ① | Nb ① | 更多 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | - | - | - | - | - | - | - | - | - | - | - | Cu+Ni+Cr+Mo≤0.50；Cr+Mo≤0.16 |
| 最大值 | 0.25 | 1.5 | 0.035 | 0.035 | 0.15 | 0.2 | 0.2 | 0.06 | 0.008 | 0.008 | 0.008 |
① 生产商和采购商达成协议后，可提供大于0.008%。
② Cu+Ni+Cr+Mo≤0.50，Cr+Mo≤0.16：
② Cu+Ni+Cr+Mo≤0.50，Cr+Mo≤0.16：
CH550 机械性能
|
屈服点 σs Mpa |
|---|
| ≥550 |
注：For grade CH550. the yield strength approaches the tensile strength and, since there is no hesitation in the pointer or drop of the beam, the lower yield strength shall be taken as the strength at 0,5 % total elongation under load in accordance with ISO 6892-1.
