Italy · UNI
PSL2 Grade L690QO
UNI EN ISO 3183
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| 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 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| seamless or welded steel tube, quenched and tempered, > 323.90mm, d | 690–810 | 760–960 Rp0.2/Rm ratio max.0.97 |