Steel pipe network: hot rolled seamless steel pipe benefits and classification Hot rolled seamless steel pipe: hot rolling is relative to cold rolling, cold rolling is carried out below the recrystallization temperature, and hot rolling is above the recrystallization temperature. Rolling performed. Hot rolling can destroy the cast structure of the ingot, refine the grain of the steel, and eliminate the defects of the microstructure, so that the steel structure is dense and the mechanical properties are improved. This improvement is mainly reflected in the rolling direction, so that the steel is no longer isotropic; to a certain extent, the bubbles, cracks and looseness formed during pouring can also be welded under high temperature and pressure.
Hot-rolled seamless steel tubes are divided into general steel tubes, low- and medium-pressure boiler steel tubes, high-pressure boiler tubes, alloy steel tubes, Stainless Steel tubes, petroleum cracking tubes, geological steel tubes, and other steel tubes.
Learn more about seamless steel pipe knowledge: http://?id=3
Razor Wire,Razor Barbed Wire,Barbed Wire Mesh
Perforated Metal Sheet,Belt Co., Ltd. , http://www.nslinkfence.com