1.1 This specification establishes requirements for a high-grade steam-metal or valve-bronze alloy (Copper Alloy UNS No. C92200 ) used for component castings of valves, flanges, and fittings. 1.2 The castings covered are This specification establishes requirements for a high-grade steam-metal or valve-bronze alloy (Copper Alloy UNS C92200) used for component castings of valves, flanges, and fittings. Tensile strength, yield strength, and elongation shall be determined