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H19

UNS #T20819

H19, equivalent to 879, is a hot work tool and die steel known for its exceptional resistance to shock and abrasion at high temperatures. This steel exhibits good toughness as well as excellent resistance both to heat checking and softening at high temperatures.

Type Analysis

  • Carbon (Nominal) 0.4
  • Phosphorus (Maximum) 0.3
  • Tungsten (Nominal) 4.25
  • Manganese (Maximum) 0.3
  • Chromium (Nominal) 4.25
  • Cobalt (Nominal) 4.25
  • Molybdenum (Nominal) 0.45
  • Iron (Nominal) Balance
  • Vanadium (Nominal) 2.1

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Applications

Applicable Specifications

  • ASTM A681

Bar

Rounds

Billet

Wire

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