The raw steel we use most for our production of the black steel pipes

We have kept a long-term partnership with a few well-known steel manufacturers for many years. Raw material source is stable, and the quality is guaranteed in the production for our steel pipes: ERW pipes, hot dipped galvanized pipes, rectangular and square pipes, GI hollows, pre galvanized pipes, spiral steel pipes etc.

Below are black Hot Rolled Coils we use most for our steel pipe production.

Shougang Group;

Hebei Iron & Steel Group( Yanshan Steel Corporation);

Lingyuan Iron & Steel Group Co., Ltd.;

Jinxi Group;

Rockcheck Group;

Delong Steel Co., Ltd and etc.

We can offer accurate Material List for your reference. In our Material List, you can clarify the chemical composition contained in steel pipes such as carbon, silicon, manganese, sulfur, phosphorus. The proportion of these elements is different because of the different product materials or grades from customers. Apart from essential raw materials, the black steel pipes you purchased are also apparent like tensile strength. You should take this factor into consideration when putting our products into application. Of course, if you want to know more information in the Material List, you can put forward your advice and we will exert great effort to satisfy your deman