A post-Deng Qinghua Precision Steel is a drawn or hot rolling process by: Pipe Co., Ltd. Liaocheng stem million (www.sd304.com) is located in Liaocheng City Development Zone, Shandong Liaocheng Shandong Province Wang Zhuang Industrial Park, Contact high-precision steel materials. Because precision steel outer wall no oxide layer to withstand high pressure without leakage, high-precision, high-quality finish, cold deformation, flaring, flattening no cracks a little bit, so the main pneumatic or hydraulic components used in the production of products such as cylinders or cylinder, which can be seamless, there are welded pipe. Precise chemical composition of carbon steel pipe C, Si Si, manganese Mn, S, P P, chromium Cr. Division is specialized in the production of seamless steel pipe manufacturing enterprise, relying on cold-rolled precision seamless Φ6-Φ219mm production of thin-walled precision light pipe 20 #, after several years of development, now perennial spot sales days of steel, steel, smelting steel, Baosteel , Steel, Hengyang, Anshan Iron and Steel, Shandong and other major steel quality seamless steel pipe. Recommended quality steel line pipe products are L245, L360 line pipe, 16MnDG cryogenic tube, A33Gr6 cryogenic tube, 12Cr1MoVG alloy pipe, 15CrMoG alloy tube. The company mainly engaged in seamless steel pipe varieties are: alloy tube (mechanical processing), boiler alloy pipe, seamless steel pipes with low temperature, geological tube precision light pipe, line pipe 20cr precision light pipe, pressure vessel tube (cylinder tube , low pressure boiler tubes, high pressure boiler tube, high pressure chemical fertilizer pipe, oil cracking pipe), automobile axle casing, hydraulic prop tube, oil tube 20 # small-caliber precision light pipe, precision steel pipe. Common materials are 10 #, 20 #, 35 #, 45 #, Q345A / B / C / D / E, 16Mn, 16MnDG, A333Gr6,20CrNiMo, 40CrNiMo, 25CrMnMo, 40CrMnMo, 15-50Mn, 15CrMoG, 12CrMoVG, 20Mn2,30Mn2 , 40Mn2,45Mn2.20Cr, 40Cr, 25MnCr, 30-35CrMnSiA, 12-15CrMo, 20CrMo, 35 CrMo, 42CrMo, 1Cr5Mo, 27SiMn so on. Pipe inventory stock cheap, customers in more than twenty provinces, municipalities and autonomous regions. Standard tensile strength precision steel precision steel standard knowledge table GB / T3639 ------ China National Standard GB / T8713 ------ Chinese national standard precision steel use for mechanical structure, hydraulic structures, hydraulic and pneumatic manufactured cylinder major producer of precision steel grades 10,20,35,45 and other chemical composition, mechanical properties - the chemical composition of the reference corresponding national standards or international standards for grades delivery status cold / hard (Y) cold / Soft (R ) stress relief annealing (T) Tensile Strength (MPa) Elongation (%) Tensile Strength (MPa) Elongation (%) Tensile Strength (MPa) Elongation (%) ≥10412637310333122051054518432103558845496520845647462856087. Dry one hundred million existing industry 2 2 roll system precision rolling mill and a 3-roll rolling mill system specialized in manufacturing high-precision fine fine bar, precision seamless bright, dry one hundred million industry to produce precision steel pipes, precision seamless tube , precision light tubes, cold drawn precision honing seamless steel inner tube, inner tubes and turning deep hole boring and honing. This machine produced products of high precision, small tolerances, good finish, and can replace the use of honing tubes. Dry one hundred million can be used for engineering precision steel industry, metallurgy, shipbuilding, construction and transportation machinery, hydraulic cylinder, cylinder cylinder, oil pumping, submersible pump tube, textile, glass fishing machine plastic machinery and automotive drive shafts and other large-tonnage industry, precision rollers.