H12

  • %C 0.30-0.40
  • %Mn 0.20-0.50
  • %S 0.030 MAX
  • %P 0.030 MAX
  • %Si 0.80-1.20
  • %Cr 4.75-5.50
  • %Mo 1.25-1.75
  • Other V=0.20-0.50
  • %W=1.00-1.70

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