Sb 61

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Unformatted text preview: SPECIFICATION FOR STEAM OR VALVE BRONZE CASTINGS SB-61 (Identical with ASTM Specification B 61-93 for the alloy covered except for the deletion of Supplementary Requirements and Appendix X1, and editorial differences. Certification has been made mandatory. Also, the entire specification revised to comply with ASTM B 824, General Requirements for Copper Alloy Castings.) 1. Scope 3. General Requirements 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 used in products that may be manufactured in advance and supplied from stock by the manufacturer or other dealer. 1.3 The values stated in inch-pound units are to be regarded as the standard. 3.1 Material furnished under this specification shall conform to the applicable requirements of Specification SB-824. 3.2 Analysis of residual elements, if desired (see 5.3). 4. Ordering Information 4.1 Orders for castings under this specification shall include the following: 4.1.1 Quantity of castings required, 4.1.2 Copper Alloy UNS No. (Table 1), 4.1.3 Specification title, number, and year of issue, 4.1.4 Pattern or drawing number and condition (as-cast, machined, etc.), 4.1.5 Chemical analysis of residual elements if specified in the purchase order (...
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