D2

UNS #T30402

D2 is an air hardening, high-carbon, high-chromium tool steel possessing extremely high wear resistant properties. It is very deep hardening and is practically free from size change after proper treatment. This tool steel's high chromium content gives it mild corrosion resisting properties in the hardened condition. Available in DeCarb-Free (DCF) bars that are cold finished in the mill prior to shipment, eliminating the need for bark removal by the tool and die fabricator.

Type Analysis

  • Carbon (Nominal) 1.5
  • Silicon (Maximum) 0.3
  • Manganese (Maximum) 0.5
  • Chromium (Nominal) 12
  • Molybdenum (Nominal) 0.8
  • Iron (Nominal) Balance
  • Vanadium (Nominal) 0.9

Applications

Blanking dies Forming dies Coining dies Extrusion dies Drawing dies Forming rolls Edging rolls Beading rolls Master tools Heading tools Long punches Intricate punches Slitting cutters

Applicable Specifications

  • ASTM A681
  • QQ-T-570

Bar

Billet

Flats

Rounds

Square

Strip

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