瑞典 · SS
PSL2 Grade L690QO
SS EN ISO 3183 — Petroleum and natural gas industries-Steel pipes for pipeline transportation systems (ISO 3183:2012)
化学成分
| 元素 | min | max | 相似 | 备注 |
|---|---|---|---|---|
| Al | 0.06 | Al total | Al total | |
| B | 0.0005 | |||
| C | 0.14 | For each reduction of 0.01% below the specified max. for C | For each reduction of 0.01% below the specified max. for C | |
| CE Pcm | Product analysis C≤0.12% | Product analysis C≤0.12% | ||
| CEV | Seamless pipe with t＞20.00mm | Seamless pipe with t＞20.00mm | ||
| Cr | 0.55 | |||
| Cu | 0.5 | |||
| Mn | 1.85 | |||
| Mo | 0.8 | |||
| N | 0.012 | Al/N≥2:1;Not applicable to titannium-killed or titanium-treated steel. | Al/N≥2:1;Not applicable to titannium-killed or titanium-treated steel. | |
| Nb | 0.06 | |||
| Nb+Ti+V | 0.15 | |||
| Ni | 0.6 | |||
| P | 0.02 | |||
| S | 0.01 | |||
| Si | 0.45 | |||
| Ti | 0.06 | |||
| V | 0.1 |
力学性能
| 热处理 / 状态 | 屈服强度 | 抗拉强度 | 伸长率 | 断面收缩率 | 冲击功 | 硬度 |
|---|---|---|---|---|---|---|
| 无缝焊接钢管;d-直径＞323.90mm 淬火和回火 | 690–810 | 760–960 Rp0.2/Rm ratio max.0.97 |