play vidio

Cold rolled seamless steel pipe

Cold rolled seamless steel pipe

Liaocheng Xinruyi Trading Co,. Ltd


Uploaded on 2 weeks ago

Cold drawn steel pipe is a kind of steel pipe, which is classified according to different production processes, which is different from hot rolled (expanded) pipe. In the process of expanding the diameter of the blank or raw tube, it is processed by multiple passes of cold drawing, usually on a single-chain or double-chain cold drawing machine of 0.5-100T. Cold rolled (dial) steel pipes are divided into general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, machined pipes, thick-walled pipes, small-diameter cold drawn pipes with internal molds and other steel pipes , Also includes carbon thin-walled steel pipe, alloy thin-walled steel pipe, stainless thin-walled steel pipe, special-shaped steel pipe. The outer diameter of cold drawn steel pipes can reach 6mm, the wall thickness can reach 0.25mm, and the outer diameter of thin-walled pipes can reach 5mm. The wall thickness is less than 0.25mm. The precision and surface quality are obviously better than that of hot rolled (expanded) pipes, but they are affected by the process Restriction, its caliber and length are subject to certain restrictions