Thick-walled seamless steel pipe seamless steel pipe factory direct _ _ Lishui seamless

Hot-rolled and cold-rolled seamless steel pipe points (written) seamless steel categories. Hot-rolled seamless hot-rolled seamless steel pipe generally sub, low, medium pressure boiler pipe, high pressure boiler pipe, steel pipe, stainless steel pipe, oil cracking pipe, steel and other steel and other geological. Cold-rolled (allocated) Subject to sub-general seamless steel pipe, low pressure boiler pipe, high pressure boiler pipe, steel pipe, stainless steel pipe, oil cracking pipe, other steel pipes, thick-walled seamless steel pipe, but also includes carbon thin-walled steel pipe, alloy thin-walled steel pipe, thin-walled stainless steel, special steel hot-rolled seamless steel pipe plant sub-normal, low, medium pressure boiler pipe, high pressure boiler pipe, steel pipe, stainless steel pipe, oil cracking pipe, steel pipe and geologic Other steel pipe. General seamless steel pipe: is 10,20,30,35,45 and other high quality carbon steel 16Mn, 5MnV low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2,40MnB other alloy steel hot-rolled or cold-rolled steel. 10,20 and other low-carbon steel seamless pipe is mainly used for fluid pipes. 45,40Cr etc. made of carbon steel seamless pipe used to manufacture mechanical parts, such as cars, tractors and the force components. General seamless steel pipes to ensure the strength and flattening test. Hot-rolled steel hot-rolled state or heat treatment delivery; cold to heat treatment delivery. Seamless and precision 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. Cold drawn (rolled) Precision steel tubes 1. The outer diameter smaller. High precision can do small quantities of raw cold drawn (rolled) finished high accuracy, good surface quality. 4 Steel Cross area more complex. 5 steel pipe superior performance, the metal relatively to close. Thick-walled seamless steel pipe seamless steel pipe factory direct _ _ Lishui seamless Grenada by Shandong Liaocheng Industry Co., Ltd. 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.