Cangzhou Zhongrun Steel Tube Co.,Ltd is a large- scale enterprise engaged in producing , processing and sales steel pipes in North China.It is of convenient transportation as it is only 150 km away from Xingang,Tianjin,China.
The company maintains two subsidiary companies , which include Cangzhou Hengchang Steel Pipe Manufacturing Co.,Ltd and Cangzhou Tianyu Steel Pipe Manufacturing Co.,Ltd.
Our products mainly include seamless steel pipe, hot-finished steel pipe, longitudinal welded pipeand pipe fittings.
With powerful financial strength, advanced managerial concept, excellent marketing service, strict quality control system and the whole scientific method, we would like to develop together with your hand in hand.
| Production | SSAW steel pipe | |||||||||
| Standard and Steel Grade | API 5L PSL2 X42 X46 X52 X56 | |||||||||
| 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(%)≤ |
| 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 | |
| Tensile properties | Steel grade | Yield strength(Mpa) | Tensile strength(Mpa) | |||||||
| minimum | maximum | minimum | maximum | |||||||
| L290/X42 | 290 | 495 | 415 | 655 | ||||||
| L320/X46 | 320 | 525 | 435 | 655 | ||||||
| L360/X52 | 360 | 530 | 460 | 760 | ||||||
| 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,CVN impact test,Non-destructive inspection and as agreed | |||||||||
| Surface Treatment | With a temporary external coating or as agreed | |||||||||
LSAW Pipes Manufacturing Process
