Products

PLASTIC MOULD STEEL

  

Shape :
Grade :

Standards

P20+Ni

DIN 2738

AISI P20+Ni

40CrMnNiMo8-6-4
C 0.42 Mn 1.50 Cr 1.95 Ni 1.10 Mo 0.20
Virat Special Steels P20+Ni

P20+Ni 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. The additional nickel content of 1 % increases through hardening. It has good machinability, suitable for Texturing, fine polishability, adequate corrosion resistance, vacuum-degassed steel.

P20+Ni High Hard ( HXM 24 )

P20+Ni is with High Hardness 360-400 BHN and increase alloy elements to get extra life and outstanding polishing.

Steel Properties

P20 +Ni is upgrade version of plastic mold steel 0f 2311, which normally supply in Pre hardened condition. Hardness in as supplied condition 280-320 HB. The additional nickel content of 1 % increases through hardening. It is micro-alloyed. It has good machinability, suitable for texturing, outstanding polishability, adequate corrosion resistance. vacuum-degassed steel with the following excellent features.

Physical Properties
Coefficient of thermal expansionat °C 20-100 20-200 20-300 20-400 20-500 20-600 20-700
10-6 m/(m*K) 11.2 12.8 13.5 13.7 14.3 14.7 14.9
Thermal Conductivity at °C 20 350 700
W/(m*K) 35 34 33
Application

P20+Ni 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, Boaster Plates of Presses, Die Holders & Shoe blocks for drop Hammers, Press Cassettes , Upsetter Blocker, forging dies, Different dies & mold for plastic products etc.

Heat Treatment
Soft annealing °C Cooling Hardness HB
710 – 740 Furnace max. 235
Hardening °C Quenching Hardness after quenching HRC
840 – 870 Polymer or oil 51
Tempering °C after Quenching 100 200 300 400 500 600 700
HRC 51.5 50.2 48 46.2 43 39 29
DIN 2738
P20+Ni