This specification establishes requirements for an alloy having a composition of copper, tin, lead, and zinc which is used for component castings of valves, flanges, and fittings. The specimen shall have the chemical composition of major elements: copper, tin, lead zinc, nickel including cobalt. It must also be comprised of the following residual elements: iron, antimony, sulfur, phosphorus, aluminum, and silicon. Mechanical properties shall be determined from separately cast test bars. Castings shall not be repaired, plugged, welded or burned-in. Valves, flanges, and fittings shall be marked accordingly in such position as not to injure the usefulness of the casting.

1.1 This specification2 establishes requirements for an alloy having a composition of copper, tin, lead, and zinc, used for component castings of valves, flanges, and fittings. The common trade name of this alloy is 85-5-5-5; the correct identification is Copper Alloy UNS No. C83600.3

1.2 The castings covered are used in products that may be manufactured in advance and supplied from stock from the manufacturer or other dealer.

1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.