ASTM_B_952_-_B_952M_-_14.pdf

Designation:B952/B952M14Standard Specification forZinc Alloys in Ingot Form for Spin Casting1This standard is issued under the fixed designation B952/B952M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers zinc alloys in ingot form forremelting for the manufacture of Spin Castings as specified anddesignated,as shown in Table 1.Seven alloy compositions arespecified,designated as follows:CommonTraditionalUNSSpin Casting Alloy SC-A.Z35550Spin Casting Alloy SC-B.Z35551Spin Casting Alloy SC-C.Z35534Spin Casting Alloy SC-DHJ10Z35547Spin Casting Alloy SC-EHJ20Z35548Spin Casting Alloy SC-FHJ40Z35552ZA-73.Z365001.2 Zinc alloys#2,#3,#5,and ZA-8 specified in Specifi-cation B240 are also used in the spin casting process.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 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:2B240 Specification for Zinc and Zinc-Aluminum(ZA)Al-loys in Ingot Form for Foundry and Die CastingsB899 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 CompositionE536 Test Methods for Chemical Analysis of Zinc and ZincAlloysE634 Practice for Sampling of Zinc and Zinc Alloys bySpark Atomic Emission Spectrometry2.3 ISO Standards:3ISO 3815-1 Zinc and zinc alloysPart 1:Analysis of solidsamples by optical emission spectrometryISO 3815-2 Zinc and zinc alloysPart 2:Analysis by in-ductively coupled plasma optical emission3.Terminology3.1 Terms shall be defined in accordance with TerminologyB899.3.2 Definitions of Terms Specific to This Standard:3.2.1 spin casting,na casting process in which moltenmetal is poured into a rubber,polymer,graphite or metal moldand spun centrifugally until solidified,also a product producedby such a process.4.Ordering Information4.1 Orders for zinc alloy ingot under this specification shallinclude information as specified in Specification B949,Section4.1This 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 Oct.1,2014.Published October 2014.Originallyapproved in 2007.Last previous edition approved in 2013 as B952/B952M 13.DOI:10.1520/B0952_B0952M-14.2For 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.3Available 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 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 from dross or other harmfulcontamination.6.Chemical Requirements6.1 LimitsThe alloy shall conform to the requirements asto chemical composition prescribed in Table 1.6.2 Chemical requirement procedures shall be in compli-ance with the provisions of Specification B949,Section 5.2.6.3 Methods of SamplingSampling procedures shall be incompliance with the provisions of Specification B949,Section6.6.4 Method of AnalysisApproved methods include:TestMethods E536,ISO 3815-1,or ISO 3815-2.NOTE1Test Methods E536 is directly applicable in an unmodifiedform,only to alloys 3,5,and 7.ISO 3815-1 and ISO 3815-2 are genericmethods applied to zinc and zinc alloys.Each of the methods may bemod