ASTM_B_892_-_10_2015.pdf

Designation:B89210(Reapproved 2015)Standard Specification forACuZinc51(Zinc-Copper-Aluminum)Alloy in Ingot Form forDie Castings2This standard is issued under the fixed designation B892;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification coversACuZinc5,a commercial zinc-copper-aluminum alloy(Z46540),3in ingot form for remeltingfor use in the production of castings.1.2 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.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateMaterial Safety Data Sheet(MSDS)for this product/materialas provided by the manufacturer,to establish appropriatesafety and health practices,and determine the applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 The following documents of the issue in effect on dateof order acceptance form a part of this specification to theextent referenced herein:2.2 ASTM Standards:4B899 Terminology Relating to Non-ferrous Metals and Al-loysB908 Practice for the Use of Color Codes for Zinc CastingAlloy IngotB949 Specification for General Requirements for Zinc andZinc Alloy ProductsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE88 Practice for Sampling Nonferrous Metals and Alloys inCast Form for Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)E536 Test Methods for Chemical Analysis of Zinc and ZincAlloysE634 Practice for Sampling of Zinc and Zinc Alloys bySpark Atomic Emission Spectrometry2.3 ISO Standards:5ISO 3815-1 Zinc and zinc alloys Part 1:Analysis of solidsamples by optical emission spectrometryISO 3815-2 Zinc and zinc alloys Part 2:Analysis byinductively coupled plasma optical emission spectrometry3.Terminology3.1 Terms shall be defined in accordance with TerminologyB899.3.2 Definitions of Terms Specific to This Standard:3.2.1 die casting,na casting process in which moltenmetal is injected under high velocity and pressure into a metaldie and solidified,also a product produced by such a process.Alternately known as pressure die casting.4.Ordering Information4.1 Orders for ingot under this specification shall includeinformation as specified in Specification B949,Section 4.5.Materials and Manufacture5.1 The alloys may be made by any approved process.5.2 The material covered by this specification shall be ofuniform quality and shall be free of harmful contamination.6.Chemical Requirements6.1 The ingots shall conform to the requirements as tochemical composition prescribed in Table 1.Conformanceshall be determined in accordance with Specification B949,Sections 5.2 and 5.2.1.1ACuZinc and ACuZinc5 are registered trade names of the General MotorsCorporation.2This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.04 on Zinc and Cadmium.Current edition approved May 1,2015.Published May 2015.Originallyapproved in 1998.Last previous edition approved in 2010 as B892 10.DOI:10.1520/B0892-10R15.3See Table 1,footnote A.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 American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.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 7.Sampling for Determination of Chemical Composition7.1 Sampling procedures shall be in accordance with appro-priate provisions of Specification B949,Section 6.8.Methods of Chemical Analysis8.1 The determination of chemical composition shall bemade in accordance with Specification B949,Section 5.2.2.8.2 The determination of chemical composition shall bemade in accordance with suitable chemical Test Methods E536,ISO 3815-1,ISO 3815-2 or other methods.In case of dispute,the results secured by Test Methods E536,ISO 3815-1,ISO3815-2 or by a method agreed upon by both parties,shall be thebasis of acceptance.NOTE1Test Methods E536 is not directly applicable to ACuZinc5.ISO 3815-1 and ISO 3815-2 are generic methods applied to zinc and zincalloys.Each of the methods may be modified and formatted for