Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy billets, bars and forgings (cobalt base Cr 20, W 15, Ni 10, Mn 1.5) Ingestion-build-61878 Structure and bridge construction

Structure and bridge construction

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Specification for cobalt-chromium-tungsten-nickel-manganese heat-resisting alloy billets, bars and forgings (cobalt base Cr 20, W 15, Ni 10, Mn 1.5) Ingestion-build-61878 Structure and bridge construction1 Scope This British Standard specifies requirements for cobalt chromium tungsten nickel manganese heat resisting alloy supplied in the following forms. a) Bars and extruded sections for machining: annealed, designation HR 40A. b) Billets and bars for forging: hot or cold worked and subsequently machined or ground, designation HR 40B. c) Forgings: annealed, designation HR 40C.