seamless steel pipe

General use seamless steel pipe is made of 10, 20, 30, 35 and 45 high quality carbon steel guitar 16 mn, 5 MNV low alloy structural steel or 40 cr, 30 crmnsi, 45 mn2 and 40 MNB guitar made from hot rolled or cold rolled steel. Made in 10, 20, such as low carbon steel seamless pipe is mainly used for fluid pipelines. 45, 40 cr made of medium carbon steel  pipe manufacturing machinery parts, such as the stress of the automobile and tractor parts. Seamless steel pipe used in general to ensure the strength and the flattening test. Hot-rolled steel pipe with hot rolled or heat treatment state delivery; Cold rolled as heat to heat treatment state delivery. Low medium pressure boiler seamless steel pipe: used in the manufacture of all kinds of low intermediate pressure boiler superheated steam pipe, water pipe, water wall tube 214534589 and locomotive boiler superheated steam pipe, great smoky, small pipe and tube arch brick, etc. With the high quality carbon structural steel hot rolled or cold rolled seamless steel tube (dial). Mainly use 10 and 20 # steel manufacturing, in addition to guarantee the chemical composition and mechanical properties to do water pressure test, edge, flaring, flattening test, etc. Hot rolled in hot rolled state delivery, cold rolling (dial) in heat treatment state delivery.