40CrMnNiMo864 Plastic Mould Steel

Product Description

40CrMnNiMo864 Plastic Mould Steel Chemical Composition - (Typical Analysis in %) STANDARDS P20+Ni DIN 2738 40CrMnNiMo8-6-4 AISI P20+Ni C Si Mn P S Cr Ni Mo 0.35-0.45 0.20-0.40 1.30-1.60 0.030max 0.030max 1.80-2.10 1.90-1.20 0.15-0.35 It has excellent hardening penetration and is specially used for Plastic injection die moulds. The characteristics of a material are right sharpening, photo-etching properties with high purity and good homogeneity. P20+Ni is upgraded version of plastic mold steel 0f 2311, which normally supply in Pre hardened condition. Hardness in as supplied condition 280-320 HB with having uniform hardness. It can be subject to a nitriding treatment to improve its wear resistance. 40CrMnNiMo864 Plastic Mould Steel Properties: P20+Ni is upgrade version of plastic mold steel 0f 2311, which normally supplied in Prehardened condition Hardness in supplied condition is 280-320 HB Additional nickel content of 1 % increases through hardening It is micro-alloyed Good machinability Suitable for texturing Outstanding Polishability Corrosion resistance Vacuum-degassed steel with the following excellent features. Application: P20 is equivalent grade of most popular steel grade of DIN 2738 which is applicable for large & small plastic mould dies for Automotive Industries, Dies for Domestic goods , High finishing plastic Die, Bolster Plates of Presses, Die Holders & Shoe blocks for drop Hammers, Press Cassettes , Upsetter Blocker, forging dies, Different dies & mold for plastic products etc. Physical Properties: Coefficient of Thermal Expansion at C 10 m / (m*K) 20-100 11.2 20-200 12.8 20-300 13.5 20-400 13.7 20-500 14.3 20-600 14.7 20-700 14.9 Thermal Conductivity at C W / (m*K) 20 35 350 34 700 33 Heat Treatment: Soft Annealing C 710-740 Cooling Furnace Hardness HB max. 235 Hardening C 840-870 Quenching Polymer or Oil Hardness after quenching HRC 51 Tempering C after quenching 100 200 300 400 500 600 700 HRC 51.5 50.2 48 46.2 43 39 29