H-46

H-46 is a martensitic, 12% chromium steel designed primarily for high strength applications in the 900/1200°F (482/649°C) temperature range. The creep resisting properties of this alloy compare favorably with those of several of the lower grades of austenitic, heat resisting steels in the 1000/1200°F (538/649°C) temperature range. H-46 exhibits low thermal expansion properties making it a consideration in structural applications where standard austenitic stainless steels have been inadequate due to excessive expansion when heated.

Type Analysis

  • Carbon (Maximum) 0.15-0.20
  • Silicon (Maximum) 0.20-0.60
  • Nickel (Nominal) 0.30-0.60
  • Manganese (Maximum) 0.50-0.80
  • Chromium (Nominal) 10.00-14.00
  • Molybdenum (Nominal) 0.50-1.00
  • Iron (Nominal) Balance
  • Columbium + Tantalum0.20-0.60
  • Nitrogen (Nominal) 0.04-0.10
  • Vanadium (Nominal) 0.20-0.40

Applications

jet aircraft engine compressor blades and rotor discs, and other applications requiring high strength in the 900/1200°F (482/649°C) temperature range.

Applicable Specifications

Bar

Billet

Rounds

Shapes

Wire

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