This British Standard specifies requirements for nickel-chromiumtitanium-aluminium heat‑resisting alloy plate, sheet and strip.
BS 3HR 201:2009 history
2009BS 3HR 201:2009 Specification for nickel-chromium- titanium-aluminium heat-resisting alloy plate, sheet and strip (nickel base, Cr 19.5, Ti 2.2, Al 1.4)
1974BS 2HR 201:1974 Specification for nickel-chromium-titanium-aluminium heat-resisting alloy plate, sheet and strip (nickel base, Cr 19.5, Ti 2.2, Al 1.4)