Carbon Steel Pipe: It is made of high-quality carbon-bonded steel 16Mn, 5MnV and other low alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel by hot rolling or cold rolling. 10. The seamless pipe made of 20 grade low carbon steel is mainly used for fluid transmission pipeline. Seamless pipes made of medium carbon steel such as 45 and 40Cr are used to manufacture mechanical parts, such as stressed parts of automobiles and tractors. Generally, the strength and flattening test shall be guaranteed for carbon steel pipes. Hot-rolled steel pipes are delivered in hot-rolled state or heat-treated state; Cold rolling is delivered in heat treatment condition.

Specification