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DIN1.2738, P20+Ni, 718 Pre-Hardened Plastic Mould Steel1
Steel ProductsP20+Ni718 Pre-Hardened Plastic Mould SteelDIN1.2738 Plastic Mould SteelDIN1.2738 Mould Steel
Hunan Fushun Metal Co., Ltd.
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Product Description Similar Grade: 1.2738 P20+Ni 718 Shape: Round, Flat, Square.Size Range: Diameter(mm)Thickness (mm)Width (mm)Length(mm)Round50-420--2000-5800Square50-420--2000-5800flat-20-5080-6002000-5800 Steel-making Condition: EF, EF/EAF+LF+VD, EF/EAF+ESRDelivery Condition:Annealed , Quenched + TemperedSurface Condition: Black, Grinded, Peeled, Rough turned, PolishedFeatures:1.Competitive price2.Immediate delivery3.Premium quality4.Reliable service5.MOQ: 1 Ton Packing detailsIn seaworthy packing, as your requirement.Delivery detailswithin 30-50 days Chemical Composition:GradeCSiMnpSCrNiMo1.27380.35-0.450.20-0.401.30-1.600.030 max0.030 max1.80-2.100.90-1.200.15-0.25 Heat Treatment:Annealing:Annealing temperature: 710 ~ 740 °C, holding time is decided by the thickness of the DIN 1.2738 die steel, one hour per 25mm. Colding in furnace after thermal insulation.Destressing: Heating temperature: 600 °C (annealed condition), 550 °C (quenching and tempering state), holding time is decided by the thickness of the 1.2738 steel, one hour per 50mm. Colding in furnace after thermal insulation.Quenching and tempering:Preheating temperature 500 ~ 600 °C, quenching temperature 840 ~ 880 °C, holding 30min (the mold have to quenching in the protective gas to prevent oxidation and decarbonization). Oil cooling, cooling to 50 ~ 70 °C,immediately tempered. Tempering holding time is decided by the thickness of the 1.2738 steel mould, one hour per 25mm, at least 2h. Tempering temperature: 180 °C / 200 °C / 300 °C / 400 °C / 500 °C / 600 °C, the hardness: 52HRC / 51HRC / 48 HRC / 46HRC / 42HRC / 34HRC.Applications:Large plastic moulds with deep engravings and intensive impacts on the core. 1.2738 Prehardened Plastic Mold Steel is the logical development of 1.2311, a pre-hardened plastic mould steel for use in large moulds, which also have to display high core strength. The additional nickel content of 1 % increases through hardening. 1.2738 is a micro-alloyed, vacuum-degassed steel with the following excellent features: good machinability, outstanding polishability, good texturing properties.Introduction:1.2738 Pre-hardened Plastic Mould Steel, hardness in as-delivered condition 280 to 325 HB. Good machinability, suitable for texturing, improved through hardening in comparison to 1.2311, good polishability. Contact Information:FUSHUN SPECIAL STEEL CO., LTD. Website: fushunmetal.en.made-in-china.com
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