Specification for nickel-chromium-cobalt-aluminium-molybdenum-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 15, Co 14.2, Al 5, Mo 4, Ti 4)

Specification for nickel-chromium-cobalt-aluminium-molybdenum-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 15, Co 14.2, Al 5, Mo 4, Ti 4)

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1   Scope

This British Standard specifies requirements for nickel-chromium-cobalt-aluminium-molybdenum-titanium heat-resisting alloy supplied in the following forms, and as parts.
  1. a) Bars and extruded sections for machining: solution treated, designation HR 4A.
  2. b) Billets and bars for forging: hot or cold worked and subsequently machined or ground, designation HR 4B.
  3. c) Forgings: solution treated, designation HR 4C.