意大利 · UNI
PSL2 Grade X65QS
UNI 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 | 0.16 | 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 | 0.22 | Product analysis C＜=0.12% | Product analysis C＜=0.12% | |
| CEV | 0.42 | The CEV limits apply if C＞0.12% | The CEV limits apply if C＞0.12% | |
| Ca | 0.006 | For SMLS and welded pipes;For welded pipe where calcium is intentionally added | For SMLS and welded pipes;For welded pipe where calcium is intentionally added | |
| Cr | 0.3 | If agreed | If agreed | |
| Cu | 0.35 | If agreed | If agreed | |
| Mn | 1.65 | |||
| Mo | 0.15 | If agreed | If agreed | |
| 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 | 0.05 | |||
| Nb+Ti+V | 0.15 | |||
| Ni | 0.3 | If agreed | If agreed | |
| P | 0.02 | |||
| S | 0.003 | The max.limit for S may be increased ＜=0.008% for SMLS pipe and | The max.limit for S may be increased ＜=0.008% for SMLS pipe and | |
| Si | 0.45 | |||
| Ti | 0.06 | |||
| V | 0.09 |
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 淬火和回火 ＞ 323.90mm d-直径 | 450–600 Rp0.5 | 535–760 Rp0.5/Rm ratio min.0.93 |