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The following is the standard data, we will do our best to follow the customers' requirements and the agreement to perform.
| Production | API 5L PSL2 LSAW steel pipe |
| PSL | PSL2 |
| Process of manufacture | As-rolled,Heat-treated |
| Type of length | Fixed ruler and Double ruler |
| Type of pipe end | Plain end |
| Inspection and Test | Tensile test,Hydrostatic test,CVN impact test,DWT test,CVN impact test,DWT test,Non-destructive inspection and as agreed |
Chemical Composition
| Steel grade | C(%)≤ | Si(%)≤ | Mn(%)≤ | P(%)≤ | S(%)≤ | V(%)≤ | Nb(%)≤ | Ti(%)≤ | CEiiw(%)≤ | CEpcm(%)≤ |
| L245/B | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.05 | 0.05 | 0.04 | 0.43 | |
| L290/X42 | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.06 | 0.05 | 0.04 | 0.43 | |
| L320/X46 | 0.24 | 0.45 | 1.4 | 0.025 | 0.015 | 0.07 | 0.05 | 0.04 | 0.43 | |
| L360/X52 | 0.24 | 0.45 | 1.5 | 0.025 | 0.015 | 0.1 | 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 | |
| L415/X60 | 0.24 | 0.45 | 1.7 | 0.025 | 0.015 | 0.1 | 0.05 | 0.04 | 0.25 | |
| L450/X65 | 0.18 | 0.45 | 1.7 | 0.025 | 0.015 | g | g | g | 0.25 | |
| L485/X70 | 0.18 | 0.45 | 1.8 | 0.025 | 0.015 | g | g | g | 0.25 | |
| L555/X80 | 0.18 | 0.45 | 1.9 | 0.025 | 0.015 | g | g | g | 0.25 | |
| L625/X90 | 0.16 | 0.55 | 2.1 | 0.02 | 0.01 | g | g | g | 0.25 | |
| L690/X100 | 0.16 | 0.55 | 2.1 | 0.02 | 0.01 | g | g | g | 0.25 | |
| L830/X120 | 0.1 | 0.55 | 2.1 | 0.02 | 0.01 | g | g | g | 0.25 | |
| a.The CEiiw limits apply if C>0.12% and the CEpcm limits apply if C≤0.12% | ||||||||||
| g.Unless otherwise agreed,Nb+V+Ti≤0.15% | ||||||||||
Tensile Properties
| Steel grade | Yield strength(Mpa) | Tensile strength(Mpa) | ||
| minimum | maximum | minimum | maximum | |
| L245/B | 245 | 450 | 415 | 655 |
| L290/X42 | 290 | 495 | 415 | 655 |
| L320/X46 | 320 | 525 | 435 | 655 |
| L360/X52 | 360 | 530 | 460 | 760 |
| L390/X56 | 390 | 545 | 490 | 760 |
| L415/X60 | 415 | 565 | 520 | 760 |
| L450/X65 | 450 | 600 | 535 | 760 |
| L485/X70 | 485 | 635 | 570 | 760 |
| L555/X80 | 555 | 705 | 625 | 825 |
| L625/X90 | 625 | 775 | 695 | 915 |
| L690/X100 | 690 | 840 | 760 | 990 |
| L830/X120 | 830 | 1050 | 915 | 1145 |
OD Tolerance
| Outside diameter ,D(mm) | Tolerances(mm) | |
| Pipe except the end | Pipe end | |
| <60.3 | -0.8 to +0.4 | -0.8 to +0.4 |
| ≥60.3 to 168.3 | ±0.0075D | -0.4 to +1.6 |
| >168.3 to 610 | ±0.0075D,but maximum of ±3.2 | ±0.005D,but maximum of ±1.6 |
| >610 to 1422 | ±0.005D,but maximum of ±4.0 | ±1.6 |
| >1422 | as agreeed | |
| The pipe end incloudes a length of 100mm at each of the pipe extremities. | ||
WT Tolerance
| Wall thickness,t(mm) | Tolerances(mm) |
| ≤5 | ±0.5 |
| >5 to <15 | ±0.1t |
| ≥15 | ±1.5 |
SSAW Pipes Manufacturing Process
