Medium and low pressure steam boiler tubes are made of steel ingots or solid tube blanks through perforation, and then made by hot rolling, cold rolling or cold drawing. Seamless steel pipe has a tight position in China’s steel pipe industry. According to incomplete statistics, there are about 240 seamless pipe manufacturing enterprises and more than 250 seamless steel pipe units in China, with an annual output of about 4.5 million tons. From the perspective of caliber, ＜ φ 76, accounting for 35%, ＜ φ 159-650, accounting for 25%. In terms of types, 1.9 million tons of general purpose pipes, accounting for 54%; 760000 tons of kerosene pipes, accounting for 5.7%; 150000 tons of hydraulic prop and tight pipe, accounting for 4.3%; Stainless pipe, bearing pipe and automobile pipe are 50000 tons, accounting for 1.4%.
Medium and low pressure steam boiler pipe is a high-quality carbon layout steel hot-rolled and cold drawn (rolled) seamless pipe used to create various layouts of superheated steam pipe, boiling water pipe of low and medium pressure steam boiler and superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe for locomotive steam boiler. It is important to use the pipeline for industrial steam boiler and survival steam boiler to transport low and medium pressure fluid. The representative materials are Grade.B steel.
Post time: Feb-08-2022