Cangzhou Zhongrun Steel Pipe Co., Ltd., founded in 1994, is located in the beautiful coastal city - Changzhou.The main products:seamless steel pipe,ERW line pipe,LSAW,SSAW and Alloy steel pipe,annual sales of 100,000 tons.
In 2012 my company invested Hengchang Steel Pipe Manufacturing Co., Ltd.in Cangzhou City, the company covers an area of 100 acres, a total of eight pipe production line,annual production of about 40,000 tons.
My company to provide you with quality products and dedicated service, welcome to visit our company.
The following is the standard data, we will do our best to follow the customers' requirements and the agreement to perform.
| Production | ASTM A335 seamless steel pipe | |||||||||
| Standard | ASTM A335 P5/P9/P11/P15/P21/P22 | |||||||||
| Process of manufacture | As-rolled,Heat-treated | |||||||||
| Chemical composition | C(%) | Mn(%) | P(%)≤ | S(%)≤ | ||||||
| 0.05-0.15 | 0.3-0.6 | 0.025 | 0.025 | |||||||
| Tensile properties | Yield strength (Mpa) | Tensile strength(Mpa) | ||||||||
| ≥205 | ≥415 | |||||||||
| Type of length | Fixed ruler and Double ruler | |||||||||
| Application | High temperature pressure vessels | |||||||||
| Certification | ISO 9001-2002 ISO14001-2004 | |||||||||
| Inspection and Test | Tensile test,Hydrostatic test,Non-destructive inspection and as agreed | |||||||||
| Surface Treatment | Bare,Painting black,varnished,galvanized,anti-corrosion 3PE PP/EP/FBE coating or as agreeed | |||||||||
Seamless Pipes Manufacturing Process
