_ Seamless cold drawn seamless steel pipe seamless steel pipe factory direct _ Nanjing

 Precision steel tubes and seamless difference 1, the main characteristics of seamless steel pipe without welding seam, can withstand greater pressure. Products can be very rough cast or cold call. 2, precision steel products in recent years emerged, mainly within the hole, outer dimensions with tight tolerances and roughness. General seamless steel pipe for conveying water, oil, gas and other fluids. Low pressure boiler seamless pipe (GB3087-2008) is used to manufacture various structural low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam locomotive boiler tubes, opium pipe, small pipe and brick arch effective quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe. High-quality carbon steel high-pressure boiler seamless steel pipe (GB5310-2008) is used to manufacture high-pressure and more pressure water tube boiler heating surface with steel, alloy steel and heat-resistant stainless steel seamless steel tubes. Fertilizers, equipment, high pressure seamless steel pipe (GB6479-2000) is applicable to operating temperature -40 ~ 400 ℃, working pressure of high-quality carbon structural steel and alloy steel 10 ~ 30Ma of chemical equipment and pipeline of seamless steel tubes. Petroleum cracking seamless pipe (GB9948-2006) is applicable to the oil refinery furnace tubes, heat exchangers and pipe seamless steel pipe. Geological drilling steel (YB235-70) is for geological department of the steel core drilling, use can be divided into the drill pipe, drill collar, core pipe, casing and precipitation tubes. Diamond core drilling seamless pipe (GB3423-82) is used for diamond core drilling drill, core rods, seamless steel pipe casing. Oil drilling pipe (YB528-65) is used for oil drilling within the thickening or external upset ends of seamless steel tubes. Steel sub-threading and not two structural seamless steel pipe, Threading Pipe Fittings links precision seamless steel tubes, not hot-rolled seamless: GB / T8162, GB / T8163 substantial difference GB8162 "seamless structure Pipe "precision hydraulic seamless steel tubes, this standard applies to the general structural and mechanical structure with seamless steel tubes. GB8163 "transmission fluid with seamless steel pipe" standards for general seamless transmission fluid. GB8163 and GB8162 The main difference is the GB8163 steel by root hydraulic test or ultrasonic, eddy current, magnetic flux leakage inspection. Therefore, the selection pressure on a standard line pipe, GB8162 standards should not be used. Seamless cold drawn seamless steel pipe factory direct _ _ provided by Nanjing seamless Pipe Co., Ltd. Shandong Liaocheng Grenada. Pipe Co., Ltd. Shandong Liaocheng Grenada (www.sdlcgr.com) (www.sdlcgr.com) (www.sdlcgrgy.com) (www.sdgrgy.com) Shandong Liaocheng, steel leaders, over the years, the company implement scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Industry leaders in Grenada with the staff warmly welcome all inquiries negotiations to create the Gray tube industry a better future.