40cr pipe;] Delivery status and annealed hardness, hardness ≤207HBS. 40Cr elastic modulus: elastic modulus E (20 ℃) ??/ MPa 200000 ~ 211700, the shear modulus G (20 ℃) ??quenching process 8080040Cr of 40Cr quenching 850 ℃, oil cooling; tempering 520 ℃ 45 # alloy tube, water , oil cooling. 40Cr steel surface hardening hardness HRC52-60, flame hardening can reach HRC48-55.40Cr nitriding 40Cr belong to nitrided steel, which contains elements conducive to nitride. After nitriding treatment can obtain higher surface hardness 40Cr, 40Cr quenched after nitriding hardness can reach up HRA72 ~ 78 Hastelloy tube that HRC43 ~ 55. Nitriding process route workpiece: Forging - annealing - rough - quenching - finishing - in addition to the stress - kibble - nitride - grinding or polishing. Since nitride thin and brittle, thus requiring the heart tissue has a higher strength, so we have to carry out transfer of heat treatment, tempering sorbite obtain improved mechanical properties and core section nitride layer quality. Nitriding soft nitriding is active, more commonly used is gas nitriding main production process high alloy pipe high-pressure alloy pipe production process: billet heating, perforated tube, pipe extension. High-pressure alloy tube rolling, pipe sizing and reducing, cooling and finishing steel or can be said heating perforated steel embryo hot rolled pickling spray head cut cold drawn carbon burning mark a seamless steel pipe manufacturing packaging products Methods 15crmog alloy tube, characterized in that: setting a plurality of rolling stands having rolls, to each different configuration of multiple consecutive rolling direction of the mandrel mill, in such a manufacturing line for seamless After rolling steel measuring pipe circumferential direction after rolling on the multi-point, according to the measurement results, at least control the mandrel mill rolling mill final seat each axis roll both end positions, so uneven wall thickness to a minimum. Usually alloy tube> alloy tube> alloy tube> high alloy seamless steel tube alloy tube short, with ordinary carbon steel, high carbon steel, common low-alloy steel and alloy structural steel for the production of liquid transportation pipeline or production structure , Parts. High pressure pipe diameter and wall thickness available, there are a variety of wall thickness in the same outer diameter, the larger the range of the high-pressure pipe pressure. Typically the length of steel, hot-rolled tube 3-12.5m, cold drawn (rolled) pipe for the 1.5-9m. 15crmog alloy tube pipe industry _ _ virtue alloy tube by virtue Liaocheng Industry Co., Ltd. 15crmog alloy tube pipe industry _ _ virtue alloy tube is virtue Pipe Co., Ltd. Liaocheng (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) this year introduced a new upgrade The above picture is for reference only, please call Tel picture on this page or to obtain the latest information, contact: Hvdroxide.