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| Production | seamless steel pipe |
| Standard and Steel Grade | API 5L PSL1 X42 X52 |
| 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(%)≤ | Mn(%)≤ | P(%)≤ | S(%)≤ | V(%)≤ | Nb(%)≤ | Ti(%)≤ |
| L290/X42 | 0.28 | 1.3 | 0.03 | 0.03 | Nb+V+Ti≤0.15% |
| L360/X52 | 0.28 | 1.4 | 0.03 | 0.03 | Nb+V+Ti≤0.15% |
| Tensile properties | Steel Grade | Yield strength (Mpa) | Tensile strength(Mpa) |
| L290/X42 | 290(42100) | 415(60200) |
| L360/X52 | 360(52200) | 460(66700) |
| Type of length | Fixed ruler and Double ruler |
| Type of pipe end | Threaded end,Plain end or Belled 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 |
