Cold Work Tool Steels

1.1730 Standards DIN C45 U

Chemical Composition

% C0,45
% Si0,35
% Mn0,70

Applications

It is used as a mold holder in plastic molds. Also used in blow molds where minimum surface quality is required.

Heat Treatment Properties

  • Stress Relief °C
    650
  • Soft Annealing °C
    680-710
  • Delivery Hardness
    +A / max. 255

Hardness

  • Austenitizing °C 
    800-830 
  • Cooling
    Oil

Hardness After Hardening

  • HRC
    64
Tempering °C 100 200 300 400 500 600
HRC 58 54 48  -  -  -

1730

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