ASTM_B_61_-_15.pdf

Designation:B6115Standard Specification forSteam or Valve Bronze Castings1This standard is issued under the fixed designation B61;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification2establishes requirements for a high-grade steam-metal or valve-bronze alloy(Copper Alloy UNSNo.C922003)used for component castings of valves,flanges,and fittings.1.2 The castings covered are used in products that may bemanufactured in advance and supplied from stock by themanufacturer or other dealer.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:4B208 Practice for Preparing Tension Test Specimens forCopper Alloy Sand,Permanent Mold,Centrifugal,andContinuous CastingsB824 Specification for General Requirements for CopperAlloy CastingsB846 Terminology for Copper and Copper AlloysE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 MSS Standards:5SP-25 Standard Marking System for Valves,Fittings,Flanges and Unions3.General Requirements3.1 The following sections of Specification B824 form apart of this specification.In the event of a conflict between thisspecification and Specification B824,the requirements of thisspecification shall take precedence.3.1.1 Terminology(Section 3),3.1.2 Other Requirements(Section 7),3.1.3 Dimensions,Mass,and Permissible Variations(Sec-tion 8),3.1.4 Workmanship,Finish,and Appearance(Section 9),3.1.5 Sampling(Section 10),3.1.6 Number of Tests and Retests(Section 11),3.1.7 Specimen Preparation(Section 12),3.1.8 Test Methods(Section 13),3.1.9 Significance of Numerical Limits(Section 14),3.1.10 Inspection(Section 15),3.1.11 Rejection and Rehearing(Section 16),3.1.12 Certification(Section 17),3.1.13 Test Report(Section 18),3.1.14 Product Marking(Section 19),and3.1.15 Packaging and Package Marking(Section 20).4.Terminology4.1 For definitions of terms relating to copper and copperalloys,refer to Terminology B846.5.Ordering Information5.1 Include the following information when placing ordersfor castings under this specification:5.1.1 Quantity of castings required,5.1.2 Copper Alloy UNS No.(Table 1),5.1.3 Specification title,number,and year of issue,5.1.4 Pattern or drawing number and condition(as-cast,machined),5.1.5 Pressure test requirements,if specified in the purchaseorder(Specification B824),5.1.6 Soundness requirements,if specified in the purchaseorder(Specification B824),5.1.7 Certification,if specified in the purchase order(Speci-fication B824),5.1.8 Foundry test report,if specified in the purchase order(Specification B824),1This practice is under the jurisdiction ofASTM Committee B05 on Copper andCopper Alloys and is the direct responsibility of Subcommittee B05.05 on Castingsand Ingots for Remelting.Current edition approved May 1,2015.Published May 2015.Originallyapproved in 1927.Last previous edition approved in 2013 as B61 08(2013).DOI:10.1520/B0061-15.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-61 of that Code.3The UNS system for copper and copper alloys(see Practice E527)is a simpleexpansion of the former standard designation system accomplished by the additionof a prefix“C”and a suffix“00”.The suffix can be used to accommodatecomposition variations of the base alloy.4For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.5Available from Manufacturers Standardization Society(MSS)of the Valve andFittings Industry,127 Park St.,NE,Vienna,VA22180-4602,http:/www.msshq.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.1.9 Witness inspection,if specified in the purchase order(Specification B824),5.1.10 ASME boiler and pressure vessel application(Sec-tion 10),and5.1.11 Product marking,if specified in the purchase order(Specification B824 and Section 11).5.2 When material is purchased for agencies of the U.S.Government,specify the Supplementary Requirements inSpecification B824.6.Chemical Composition6.1 The alloy shall conform to the chemical requirementsspecified in Table 1.6.2 These specification limits do not preclude the presenceof other elements.Limits may be established for unnamedelements by agreement between manufacturer or supplier andpurchaser.Copper or zinc may be give