Seamless Steel Classification

Seamless steel pipe has an important position in China's steel industry. According to incomplete statistics, China's existing seamless tube production enterprises are more than about 240, they have about 250 sets of seamless steel pipe unit, with an annual capacity of about 450 million tons.

Seamless steel tubes are divided into hot-rolled seamless steel pipe and cold-rolled (dial) seamless steel pipe. Hot-rolled seamless steel tube divides into general steel, low and medium pressure boiler pipe, high pressure boiler pipe, alloy steel pipe stainless steel pipe, oil cracking pipe, geological steel pipes and other steel pipe.

Cold-rolled seamless not only contains the category of hot-rolled seamless steel, but also includes carbon thin-walled steel, alloy steel thin-walled, thin-walled stainless steel pipe, shaped steel.