Carbon Steel API 5L PSL1 DN600 ERW Steel Pipe
DN15-DN600 Black API 5L Carbon Alloy Stainless ASTM A53 Sch40 Coating ERW Steel Pipe
In the process of ERW steel pipe, welding quality of welded seam can be achieved by the appearance like welded seam shape, surface condition and mechanical properties of welded seam inspection and metallographic analysis to decide. In the process of production, welded seam shape of bending form and surface condition can provide the reference for the welding process adjustment. Mechanical properties testing are generally carried out in accordance with the standards or customers' special requirements.
Chemical composition in % For API 5L PSL1 ERW Steel Pipe
| TYPE | Steel grade | C . | Si | Mn . | P | S |
| API 5L PSL1 | B | ≤0.28 | - | ≤1.20 | ≤0.03 | ≤0.03 |
| API 5L PSL1 | X42 | ≤0.28 | - | ≤1.3 | ≤0.03 | ≤0.03 |
| API 5L PSL1 | X52 | ≤0.28 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| API 5L PSL1 | X56 | ≤0.28 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| API 5L PSL1 | X60 | ≤0.28 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| API 5L PSL1 | X65 | ≤0.28 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| API 5L PSL1 | X70 | ≤0.28 | - | ≤1.4 | ≤0.03 | ≤0.03 |
Mechanical Properties for API 5L PSL1 ERW Steel Pipe
| TYPE | grade | Tensile strength (Mpa) |
Yield strength (Mpa) |
Elongation |
| API 5L PSL1 | B | ≥415 | ≥245 | As per API 5L |
| API 5L PSL1 | X42 | ≥415 | ≥290 | As per API 5L |
| API 5L PSL1 | X52 | ≥460 | ≥360 | As per API 5L |
| API 5L PSL1 | X56 | ≥490 | ≥390 | As per API 5L |
| API 5L PSL1 | X60 | ≥520 | ≥415 | As per API 5L |
| API 5L PSL1 | X65 | ≥535 | ≥450 | As per API 5L |
| API 5L PSL1 | X70 | ≥565 | ≥483 | As per API 5L |
Chemical composition in % For API 5L PSL2 ERW Steel Pipe
| Level | Steel grade | C . | Si | Mn . | P | S |
| PSL2 | B | ≤0.24 | - | ≤1.20 | ≤0.03 | ≤0.03 |
| PSL2 | X42 | ≤0.24 | - | ≤1.3 | ≤0.03 | ≤0.03 |
| PSL2 | X52 | ≤0.24 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| PSL2 | X56 | ≤0.24 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| PSL2 | X60 | ≤0.24 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| PSL2 | X65 | ≤0.24 | - | ≤1.4 | ≤0.03 | ≤0.03 |
| PSL2 | X70 | ≤0.24 | - | ≤1.4 | ≤0.03 | ≤0.03 |
Mechanical Properties For API 5L PSL2 ERW Steel Pipe
| Level | grade | Tensile strength (Mpa) |
Yield strength (Mpa) |
Elongation |
| PSL2 | B | 415-760 | 245-450 | As per API 5L |
| PSL2 | X42 | 415-760 | 290-495 | As per API 5L |
| PSL2 | X52 | 460-760 | 360-530 | As per API 5L |
| PSL2 | X56 | 490-760 | 390-545 | As per API 5L |
| PSL2 | X60 | 520-760 | 415-565 | As per API 5L |
| PSL2 | X65 | 535-760 | 450-600 | As per API 5L |
| PSL2 | X70 | 565-758 | 483-621 | As per API 5L |
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