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SB 61 - SPECIFICATION FOR STEAM OR VALVE BRONZE CASTINGS...

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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 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. 2. Referenced Documents 2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent referenced herein: 2.1.1 ASTM Standards: B 208 Recommended Practice for Preparing Tension Test Specimens for Copper-Base Alloys for Sand Castings B 824 Specification for General Requirements for Copper Alloy Castings E 527 Practice for Numbering Metals and Alloys (UNS) 2.1.2 MSS Standards: SP-25 Standard Marking System for Valves, Fittings, Flanges, and Unions 33 3.
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