ASTM_B_86_-_13.pdf

Designation:B8613Standard Specification forZinc and Zinc-Aluminum(ZA)Alloy Foundry and DieCastings1This standard is issued under the fixed designation B86;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 Department of Defense.1.Scope*1.1 This specification covers commercial zinc,zinc-aluminum castings and continuous cast bar stock,as designatedand specified in Table 1.Seven alloy compositions are speci-fied and designated as follows:CommonTraditionalASTMAUNSAlloy 3Zamak 3AG 40ABZ33525Alloy 7Zamak 7AG 40BZ33527Alloy 5Zamak 5AC 41ABZ35533Alloy 2Zamak 2AC 43AZ35545ZA-8ZA-8.Z35638ZA-12ZA-12.Z35633ZA-27ZA-27.Z35841ASee Table 1,Footnote C.BSAE Specification,Nos.903 and 925 conform to the requirements for alloysAG40A and AC41A,respectively.1.2 Zinc Alloys Z33525,Z33527,Z35533,and Z35545 areused primarily in the manufacture of pressure die castings.Zinc-AluminumAlloys Z35638,Z35633,and Z35841 are usedin the manufacture of both foundry and pressure die castings.These alloys are also fabricated into continuous cast bar stockused for prototyping and screw machine stock.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.1.4 Systems of nomenclature used to designate zinc andzinc-aluminum(ZA)alloys used for casting are described inAppendix X1.1.5 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 CastingsB275 Practice for Codification of Certain Nonferrous Metalsand Alloys,Cast and WroughtB557 Test Methods for Tension Testing Wrought and CastAluminum-and Magnesium-Alloy ProductsB899 Terminology Relating to Non-ferrous Metals and Al-loysB949 Specification for General Requirements for Zinc andZinc Alloy ProductsE8 Test Methods for Tension Testing of Metallic MaterialsE23 Test Methods for Notched Bar Impact Testing of Me-tallic MaterialsE29 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 North American Die Casting Association(NADCA):3NADCA Product Specification Standards for Die Castings1This 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 Feb.1,2013.Published March 2013.Originallyapproved in 1931.Last previous edition approved in 2011 as B86 11.DOI:10.1520/B0086-13.2For 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 North American Die Casting,Assn.,2000 5th Ave.,RiverGrove,IL 60171,http:/www.diecasting.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 2.4 Federal Standard:4Fed.Std.No.123 Marking for Shipment(Civil Agencies)2.5 Military Standard:4MIL-STD-129 Marking for Shipment and Storage(MilitaryAgencies)2.6 Military Specification:4MIL-P-116 Methods of Preservation2.7 ISO Standards:5ISO 301 Zinc Alloy Ingots Intended for CastingISO 15201 Zinc and Zinc alloysCastingsSpecificationsISO 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 emission spectrometry3.Terminology3.1 Terms shall be defined in accordance with TerminologyB899.3.2 Definitions of Terms Specific to This Standard:3.2.1 continuous casting,na casting technique in which acast is cont