1、Designation: B80 15Standard Specification forMagnesium-Alloy Sand Castings1This standard is issued under the fixed designation B80; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parentheses
2、indicates the year of last reapproval. A superscriptepsilon () 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. Scope1.1 This specification covers magnesium-alloy sand cast-ings designated as
3、shown in Table 1.1.2 The values stated in inch-pound units are to be regardedas the standard. The SI values in parentheses are provided forinformation only.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
4、 this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory 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
5、herein:2.2 ASTM Standards:2B93/B93M Specification for Magnesium Alloys in IngotForm for Sand Castings, Permanent Mold Castings, andDie CastingsB296 Practice for Temper Designations of MagnesiumAlloys, Cast and WroughtB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy
6、 ProductsB660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB661 Practice for Heat Treatment of Magnesium AlloysB951 Practice for Codification of Unalloyed Magnesium andMagnesium-Alloys, Cast and WroughtE29 Practice for Using Significant Digits in Test Data toDetermine Conformance
7、 with SpecificationsE35 Test Methods for Chemical Analysis of Magnesium andMagnesium Alloys (Withdrawn 2008)3E88 Practice for Sampling Nonferrous Metals and Alloys inCast Form for Determination of Chemical CompositionE94 Guide for Radiographic ExaminationE155 Reference Radiographs for Inspection of
8、Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant Examination for GeneralIndustryE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition
9、 by Spectrochemical Analysis2.3 Federal Standards:4Fed. Std. No. 123 Marking for Shipment (Civil Agencies)Fed. Std. No. 184 Identification Marking of Aluminum,Magnesium and Titanium2.4 Military Standards:4MIL-STD-129 Marking for Shipment and Storage (MilitaryAgencies)MIL-STD-276 Impregnation of Poro
10、us Non-ferrous MetalCastingsMIL-I-13857 Impregnation of Metal CastingsMIL-M-46062 Magnesium Alloy Castings, High StrengthMIL-M-6857 Heat Treatment of Magnesium Alloy Castings2.5 ANSI Standard:5ANSI Z1.4 Sampling Procedures and Tables for Inspectionby Attributes3. Terminology3.1 Definitions:3.1.1 cas
11、ting lot, nunless otherwise agreed, shall consistof not more than 1000 lb of cleaned castings from the same1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.04 onMagnesium Alloy Cast and Wrought Products
12、.Current edition approved May 1, 2015. Published June 2015. Originallyapproved in 1930. Last previous edition approved in 2009 as B80 09. DOI:10.1520/B0080-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of
13、ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19
14、111-5098, http:/www.dodssp.daps.mil.5Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1TABLE1ChemicalRequireme
15、ntsANOTE1Analysisshallregularlybemadeonlyfortheelementsspecificallymentionedinthistable.If,however,thepresenceofotherelementsissuspectedorindicatedinamountsgreaterthanthespecifiedlimits,furtheranalysisshallbemadetodeterminethattheseelementsarenotpresentinexcessofthespecifiedlimits.NOTE2Thefollowinga
16、ppliestoallspecifiedlimitsinthistable:Forpurposesofacceptanceandrejection,anobservedvalueoracalculatedvalueobtainedfromanalysisshallberoundedtothenearestunitinthelastright-handplaceoffiguresusedinexpressingthespecifiedlimit.AlloyNumberBChemicalCompositionLimitsforRegisteredMagnesiumAlloysASTMUNSMagn
17、e-siumAlu-minumCopperGado- liniumIronLithiumMan-ganeseNeo-dymiumNickelRareEarthsSiliconSilverYttriumZincZirconiumOthers(MetallicImpurities)EachTotalCImpu-ritiesAM100AM10100remainder9.310.70.10.0.100.35.0.01.0.30.0.30.0.30AZ63AM11630remainder5.36.70.25.0.150.35.0.01.0.30.2.53.5.0.30AZ81AM11810remaind
18、er7.08.10.10.0.130.35.0.01.0.30.0.401.0.0.30AZ91CM11914remainder8.19.30.10.0.130.35.0.01.0.30.0.401.0.0.30AZ91EM11919remainder8.19.30.015.0.005D.0.170.35.0.0010.0.20.0.401.0.0.010.30AZ92AM11920remainder8.39.70.25.0.100.35.0.01.0.30.1.62.4.0.30EQ21AM18330remainder.0.050.10.0.011.53.0E.1.31.7.0.401.0.
19、0.30EV31AFM12310remainder.0.011.01.70.010.2.63.10.00200.4G.0.05.0.200.500.401.00.01.EZ33AM12330remainder.0.10.0.012.54.0H.2.03.10.501.0.0.30K1AM18010remainder.0.401.0.0.30QE22AM18220remainder.0.10.0.011.82.5E.2.03.0.0.401.0.0.30WE43AM18430remainder.0.03.0.010.20.152.02.50.0051.9I0.013.74.30.200.401.
20、00.2.WE43BM18432remainder.0.02.0.0100.20.032.02.50.0051.9I.J3.74.3J0.401.00.01.WE54AM18410remainder.0.03.0.20.031.52.00.0052.0I0.014.755.50.200.401.00.20.ZC63AM16331remainder.2.43.0.0.250.75.0.01.0.20.5.56.5.0.30ZE41AM16410remainder.0.10.0.15.0.010.751.75H.3.55.00.401.0.0.30ZK51AM16510remainder.0.10
21、.0.01.3.65.50.501.00.30ZK61AM16610remainder.0.10.0.01.5.56.50.61.00.30ALimitsareinweight%maxunlessshownasarangeorstatedotherwise.BASTMalloydesignationswereestablishedinaccordancewithPracticeB951.UNSdesignationswereestablishedinaccordancewithPracticeE527.CIncludeslistedelementsforwhennospecificlimiti
22、sshown.DIfironexceeds0.005%,theIrontoManganeseratioshallnotexceed0.032.ERareearthelementsareintheformofDidymium,withnotlessthan70%Neodymium,andtheremaindersubstantiallyPraseodymium.FAlloyEV31Aisapatentedcomposition,suitableforelevatedtemperatureapplications.Interestedpartiesareinvitedtosubmitinforma
23、tionregardingtheidentificationofalternativestothesecompositionstoASTMInternational.Yourcommentswillreceivecarefulconsiderationatameetingoftheresponsibletechnicalcommittee,whichyoumayattend.ASTMInternationaltakesnopositionrespectingthevalidityofanypatentrightsassertedinconnectionwithanyitemmentionedi
24、nthisspecification.Usersofthisspecificationareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,areentirelytheirownresponsibility.GOtherRareEarthsmayalsobepresenttoatotalmaximumof0.4%.TheseRareEarthsshallprincipallybeCerium,Lanthanum,andPraseody
25、mium.HTotalRareEarths(TRE)areprincipallyamixtureofCerium,Lanthanum,NeodymiumandPraseodymium.TheCeriumcontentshouldnotbelessthan45%ofTRE.IOtherRareEarthsshallbeprincipallyheavyrareearths,suchas,Gadolinium,Dysprosium,Erbium,andYtterbium.OtherRareEarthsarederivedfromtheYttrium,typically80%Yttrium,and20
26、%heavyrareearths.JZinc+Silvershallnotexceed0.20%inWE43B.B80152melt or heat, except where this weight limit may be exceededby a single casting. In such cases, each casting shall beconsidered a lot.3.1.2 heat treat lot, nfor the purpose of mechanicalproperty testing, a lot shall consist of all casting
27、s heat treatedin the same furnace charge to the same temper.3.1.3 sand casting, nmetal object produced by pouringmolten metal into a sand mold and allowing it to solidify.4. Ordering Information4.1 Orders for castings under this specification shall includethe following information:4.1.1 Applicable d
28、rawing or part number,4.1.2 Quantity of each casting,4.1.3 Specification number and title,4.1.4 Alloy (Section 9 and Table 1),4.1.5 Temper (Section 11, Table 2 and X1.2),4.1.6 Whether foundry control is required (Section 8),4.1.7 Whether test specimens cut from castings are requiredin addition to, o
29、r instead of, separately cast test specimens(Section 12 and Table X1.2),4.1.8 Whether liquid penetrant inspection is required (15.2),4.1.9 Whether radiographic inspection is required (15.3),4.1.10 Whether pressure testing is required (15.4),4.1.11 Whether source inspection is required (Section 17),4
30、.1.12 Whether repairs are permissible (Section 19),4.1.13 Whether chemical analysis and mechanical propertyreports or certifications, or both, are required (Section 20), and4.1.14 Whether special packaging is required for shipment(Section 22).5. Responsibility for Quality Assurance5.1 Responsibility
31、 for InspectionUnless otherwise speci-fied in the contract or purchase order, the supplier is respon-sible for the performance of all inspection requirements asspecified herein. Except as otherwise specified in the contractor order, the supplier may use his own or any other facilitiessuitable for th
32、e performance of the inspection requirementsspecified herein, unless disapproved by the purchaser. Thepurchaser reserves the right to perform any of the inspectionsset forth in the specification where such inspections are deemednecessary to ensure supplies and services conform to pre-scribed require
33、ments.6. Material Requirements6.1 Unless otherwise specified, only magnesium alloy in-gots or producers foundry scrap conforming to SpecificationB93/B93M shall be used for pouring castings. Additions ofsmall amounts of grain refining elements and material for meltprocess losses are permitted.TABLE 2
34、 Tensile RequirementsNOTE 1For purposes of determining conformance with this specification, each value for tensile strength and yield strength shall be rounded to thenearest 0.1 ksi and each value for elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding method of Pr
35、actice E29.Alloy NumberTemperATensile Strength, min,ksi (MPa)Yield StrengthB(0.2 %offset), min, ksi (MPa)Elongation in 2 in., (50.8mm) min, %ASTM UNSAM100A M10100 T6 35.0(241) 17.0(117)CAZ63A M11630 F 26.0(179) 11.0(76) 4T4 34.0(234) 11.0(76) 7T5 26.0(179) 12.0(83) 2T6 34.0(234) 16.0(110) 3AZ81A M11
36、810 T4 34.0(234) 11.0(76) 7AZ91C M11914 F 23.0(158) 11.0(76)CT4 34.0(234) 11.0(76) 7T5 23.0(158) 12.0(83) 2T6 34.0(234) 16.0(110) 3AZ91E M11919 T6 34.0(234) 16.0(110) 3AZ92A M11920 F 23.0(158) 11.0(76)CT4 34.0(234) 11.0(76) 6T5 23.0(158) 12.0(83)CT6 34.0(234) 18.0(124) 1EQ21A M18330 T6 34.0(234) 25.
37、0(172) 2EV31A M12310 T6 36.0(248) 21.0(145) 2EZ33A M12330 T5 20.0(138) 14.0(96) 2K1A M18010 F 24.0(165) 6.0(41) 14QE22A M18220 T6 35.0(241) 25.0(172) 2WE43A M18430 T6 32.0(221) 25.0(172) 2WE43B M18432 T6 32.0(221) 25.0(172) 2WE54A M18410 T6 37.0(255) 26.0(179) 2ZC63A M16331 T6 28.0(193) 18.0(124) 2Z
38、E41A M16410 T5 29.0(200) 19.5(133) 2.5ZK51A M16510 T5 34.0(234) 20.0(138) 5ZK61A M16610 T6 40.0(276) 26.0(179) 5AThese temper designations were established in accordance with Practice B296.BSee X1.4.1.CNot required.B801536.2 Pure materials and master alloys may be used providedchemical analysis veri
39、fying conformance to Table 1 is doneprior to pouring any castings.7. Manufacture7.1 The responsibility of furnishing castings that can be laidout and machined to the finished dimensions within thepermissible variations specified, as shown on the blueprints ordrawings, shall rest with the supplier, e
40、xcept when patternequipment is furnished by the purchaser. Sufficient stock shallbe allowed for shrinkage, and where requested, for finishing;but castings of excessive weight shall not be furnished.7.2 The castings may be subjected to such heat treatment asdeemed necessary to produce material that w
41、ill conform to therequirements specified. Heat treatment shall be performed onthe whole of a casting, never on a part only, and shall beapplied in a manner that will produce the utmost uniformity.8. Foundry Control8.1 When specified, castings shall be produced underfoundry control approved by the pu
42、rchaser. Foundry controlshall consist of examination of the castings by radiographic orother approved methods for determining internal discontinui-ties until the gating, pouring, and other foundry practices havebeen established to produce castings meeting the qualitystandards set by purchaser or agr
43、eed to between the purchaserand the producer. When foundry practices have been soestablished, the production method shall not be significantlychanged without demonstrating to the satisfaction of thepurchaser that the change does not adversely affect the qualityof the castings. Minor changes in pouri
44、ng temperature of650F from the established nominal temperature are permis-sible.9. Chemical Composition Requirements9.1 LimitsThe castings shall conform to the chemicalcomposition limits prescribed in Table 1. Conformance shall bedetermined by analyzing samples taken when the castings arepoured, or
45、by analyzing samples taken from the finishedproduct. If the chemical composition has been determinedduring the course of manufacture, sampling and analysis of thefinished product shall not be necessary.10. Sampling for Chemical Composition10.1 For determination of chemical composition, onesample of
46、each casting lot shall be taken in accordance withPractice E88 for chemical analysis or Practice E716 forspectrochemical analysis.10.1.1 Samples for other methods of chemical analysis shallbe suitable for the form of material being analyzed and the typeof analytical method used. In case of dispute,
47、analyses shouldbe made by methods given in Methods E35.11. Heat Treatment11.1 Unless otherwise specified, heat treatment for theapplicable tempers designated in Tables 2 and X1.2 shall be inaccordance with Military Specification MIL-M-6857 or Prac-tice B661. Heat treatment shall be performed on the
48、wholecasting and never on a portion.11.2 Each heat treat furnace charge shall contain at least oneset of test bars of the same composition range as the castings.The satisfactory heat treatment of the furnace charge shall bedetermined by the results from these test bars, which mustconform to the requ
49、irements of Table 2 or Table X1.2 whererequired.12. Tensile Requirements12.1 LimitsThe tension test specimens representing thecastings shall conform to the requirements of Table 2.12.2 Number of TestsAt least one tension test specimenshall be tested from each casting lot, or fraction thereof, torepresent the castings poured from the same melt. If thecastings are to be heat treated, the specimens shall be heattreated with production castings of the same allo
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