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Production | seamless steel pipe |
Standard and Steel Grade | API 5L PSL2 X46X56 |
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(%)≤ | CEiiw(%)≤ |
L320/X46 | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.07 | 0.05 | 0.04 | 0.43 |
L390/X56 | 0.24 | 0.45 | 1.5 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | 0.43 |
Tensile properties | Steel grade | Yield strength(Mpa) | Tensile strength(Mpa) |
minimum | maximum | minimum | maximum |
L320/X46 | 320 | 525 | 435 | 655 |
L390/X56 | 390 | 545 | 490 | 760 |
Type of length | Fixed ruler and Double ruler |
Type of pipe end | Plain end |
Application | Transportation of oil, natural gas and other vapor-liquid objects, to meet the high and low pressure pipes conveying various requirements |
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 |