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| Production | LSAW steel pipe | |||||||||
| Standard and Steel Grade | API 5L PSL2 X60 X65 X70 | |||||||||
| delivery condition | As-rolled,normalizing rolled,normalizing formed,normailized,normalized and tempered,quenched and tempered,thermomechanical rolled or thermamechanical formed | |||||||||
| Process of manufacture | As-rolled,Heat-treated | |||||||||
| Chemical composition | Steel grade | C(%)≤ | Si(%)≤ | Mn(%)≤ | P(%)≤ | S(%)≤ | V(%)≤ | Nb(%)≤ | Ti(%)≤ | CEpcm(%)≤ |
| L415/X60 | 0.24 | 0.45 | 1.7 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | 0.25 | |
| L450/X65 | 0.24 | 0.45 | 1.7 | 0.025 | 0.015 | Nb+V+Ti≤0.15% | 0.25 | |||
| L485/X70 | 0.18 | 0.45 | 1.8 | 0.025 | 0.015 | Nb+V+Ti≤0.15% | 0.25 | |||
| Tensile properties | Steel grade | Yield strength(Mpa) | Tensile strength(Mpa) | |||||||
| minimum | maximum | minimum | maximum | |||||||
| L415/X60 | 415 | 565 | 520 | 760 | ||||||
| L450/X65 | 450 | 600 | 535 | 760 | ||||||
| L485/X70 | 485 | 630 | 570 | 760 | ||||||
| Type of length | Fixed ruler and Double ruler | |||||||||
| Certification | ISO 9001-2002 ISO14001-2004 | |||||||||
| Inspection and Test | Tensile test,Hydrostatic test,Non-destructive inspection and as agreed | |||||||||
| Surface Treatment | With a temporary external coating or as agreed | |||||||||
