Hot Work Tool Steels

1.2888 Standards DIN X20CoCrWMo109

Chemical Composition

% C0,20
% Si0,30
% Mn0,50
% Cr9,30
% Mo1,90
% Co9,80

Applications

Used in extrusion dies of copper and copper alloy steels and high pressure casting chambers

Heat Treatment Properties

  • Stress Relief °C
    650
  • Soft Annealing °C
    840-880
  • Delivery Hardness
    +A / max. 255

Hardness

  • Austenitizing °C 
    1000-1050 
  • Cooling
    Oil, Fluid bed , Air

Hardness After Hardening

  • HRC
    64
Tempering °C 500 550 600 650 700 750
HRC 56 56 55,5 54 48 42,3

2888

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