ASTM B969 B969M-2018 Standard Specification for Aluminum-Alloy Castings Produced by Squeeze Casting and the Semi-Solid Thixocast and Rheocast Casting Processes.pdf

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1、Designation: B969/B969M 18Standard Specification forAluminum-Alloy Castings Produced by Squeeze Casting,and the Semi-Solid Thixocast and Rheocast CastingProcesses1This standard is issued under the fixed designation B969/B969M; the number immediately following the designation indicates the yearof ori

2、ginal 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 aluminum-alloy castings, pro-duced

3、by Squeeze Casting, and the Semi-Solid Thixocast andRheocast casting processes, designated as shown in Table 1.1.2 This specification is for aluminum-alloy squeezecastings, and semi-solid Thixocast and Rheocast castings usedin general purpose applications. It may not address the me-chanical properti

4、es, integrity testing, and verification requiredfor highly loaded or safety critical applications.1.3 Alloy and temper designations are in accordance withANSI H35.1/H35.1 (M).1.4 Unless the order specifies the “M” specificationdesignation, the material shall be furnished to the inch-poundunits.1.5 F

5、or acceptance criteria for inclusion of new aluminumand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 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 equival

6、ents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.7 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of t

7、his standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.8 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Princi

8、ples for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 The following documents of the issue in effect on thedate of casting purchase form a part of this specification

9、 to theextent referenced herein:2.2 ASTM Standards:2B179 Specification for Aluminum Alloys in Ingot and Mol-ten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Zinc, Tin and LeadDie CastingsB557 Test Methods for Tension Testing Wrought and CastAluminum- and Mag

10、nesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB666/B666M Practice for Identification Marking of Alumi-num and Magnesium ProductsB881 Terminology Relating

11、 to Aluminum- and Magnesium-Alloy ProductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesB985 Practice for Sampling Aluminum Ingots, Billets, Cast-ings and Finished or Semi-Finished Wrought AluminumProducts for Compositional AnalysisD3951 Practice for Commercial

12、PackagingE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE23 Test Methods for Notched Bar Impact Testing of Me-tallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum and1This t

13、est method is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.Current edition approved May 15, 2018. Published June 2018. Originallyapproved in 2009. Last previous edition approved in

14、2017 as B969/B969M 17.DOI: 10.1520/B0969_B0969M-18.2For 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.*A Summary

15、 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in

16、 the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1TABLE1ChemicalCompositionLimitsA,B,C,DDESIGNATIONISiFeCuMnMgCrNiZnTiAgBePbSnZrFNsOTHERSEAlMin.EachTotalF319.05.56.

17、51.03.04.00.500.10.0.351.00.25.0.50.0.50Rem.355.04.55.50.6G1.01.50.50G0.400.60.25.0.350.25.0.050.15.0.050.15Rem.356.06.57.50.6G0.250.35G0.200.450.350.250.050.15.0.050.15Rem.A356.06.57.50.200.200.100.250.450.100.200.050.15.0.050.15Rem.357.06.57.50.150.050.030.450.6.0.050.20.0.050.15.0.050.15Rem.366.0

18、6.57.50.150.050.030.51.20.050.200.050.15.0.050.15Rem.380.07.59.52.03.04.00.500.10.0.503.0.0.35.0.50.0.50Rem.A390.016.018.00.504.05.00.100.450.65H.0.100.20.0.100.20.0.100.20Rem.AWhensingleunitsareshown,theyindicatethemaximumamountspermitted.BAnalysisshallbemadefortheelementsforwhichlimitsareshowninth

19、istable.CThefollowingappliestoallspecifiedlimitsinthistable:Forpurposesofdeterminingconformancetotheselimits,anobservedvalueoracalculatedvalueobtainedfromanalysisshallberoundedtothenearestunitinthelastright-handplaceoffiguresusedinexpressingthespecifiedlimitinaccordancewiththerounding-offmethodofPra

20、cticeE29.DIncaseofdiscrepancybetweenthevalueslistedinTable1andthoselistedinthe“DesignationsandCompositionLimitsforAluminumAlloysintheFormofCastingsandIngot(knownasthe“PinkSheets”)”,thecompositionlimitsregisteredwiththeAluminumAssociationandpublishedinthe“PinkSheets”shallbeconsideredthecontrollingcom

21、position.E“Others”includeslistedelementsforwhichnospecificlimitisshownaswellasunlistedmetallicelements.Theproducermayanalyzesamplesfortraceelementsnotspecifiedinthespecification.However,suchanalysisisnotrequiredandmaynotcoverallmetallic“Others”elements.Shouldanyanalysisbytheproducerorthepurchaserest

22、ablishthatan“Others”elementexceedsthelimitof“Each”orthattheaggregateofseveral“Others”elementsexceedsthelimitof“Total,”thematerialshallbeconsiderednonconforming.FOtherElementsTotalshallbethesumofunspecifiedmetallicelements0.010%ormore,roundedtotheseconddecimalbeforedeterminingthesum.GIfironexceeds0.4

23、5,manganesecontentshallnotbelessthanone-halfironcontent.HTheAluminumAssociationrulingonthenumberofdecimalplacestowhichMgpercentisexpressedisexemptedforsomelongstandingalloys.SeeA2.2.6.IForacrossreferenceofcurrentandformeralloydesignationsseetheAluminumAssociations“DesignationsandChemicalCompositionL

24、imitsforAluminumAlloysintheFormofCastingsandIngot(ThePinkSheets)”.B969/B969M 182Aluminum-Base Alloys (Withdrawn 2017)3E94 Guide for Radiographic Examination Using IndustrialRadiographic FilmE155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant

25、Examination for GeneralIndustryE505 Reference Radiographs for Inspection of Aluminumand Magnesium Die CastingsE607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere (Withdrawn 2011)3E716 Practices for Sampling and Sample Prepar

26、ation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spark Atomic Emission Spec-trometryE1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Spark Atomic Emission SpectrometryE2422 Digital Reference Images for Inspection of Alumi-num Castings2.3 ANSI Standar

27、d:4H35.1/H35.1 (M)-2006 American National Standard Alloyand Temper Designation Systems for Aluminum2.4 NADCA Standards:5#403 Product Specification Standards for Die Castings Pro-duced by the Semi-Solid and Squeeze Casting Processes2.5 NADCA Product Specification Standards for Die Cast-ings:Engineeri

28、ng and Design: Coordinate DimensioningS-4A-1-15 Linear Dimensions: Standard TolerancesS-4A-2-15 Parting Line: Standard TolerancesS-4A-3-15 Moving Die Components (MDC): Standard Tol-erancesS-4A-4-15 Draft Requirements: Standard TolerancesS-4A-5-15 Flatness Requirements: Standard TolerancesS-4A-6-15 C

29、ored Holes for Cut Threads: Standard Toler-ancesS-4A-8-15 Cored Holes for Pipe Threads: Standard Toler-ancesP-4A-1-15 Linear Dimensions: Precision TolerancesP-4A-2-15 Parting Line: Precision TolerancesP-4A-3-15 Moving Die Components (MDC): Precision Tol-erancesP-4A-4-15 Draft Requirements: Precision

30、 TolerancesP-4A-5-15 Flatness Requirements: Precision TolerancesP-4A-6-15 Cored Holes for Cut Threads: Precision Toler-ancesP-4A-7-15 Cored Holes for Formed Threads: Precision Tol-erancesS/P-4-9-15 Machining Stock Allowances (Standard and Pre-cision) Engineering and Design: Additional SpecificationG

31、uidelinesG-6-1-15 Pressure Tightness in Die Cast PartsG-6-2-15 Fillets, Ribs and Corners in Die Cast Parts (1 of 2)G-6-3-15 Fillets, Ribs and Corners in Die Cast Parts (2 of 2)G-6-4-15 Ejector Pins, Pin Marks and Pin FlashG-6-5-15 Casting Flash removalG-6-6-15 Surface Finish, As CastG-6-7-15 Die Cas

32、t Lettering and Ornamentation2.6 Federal Standard:6Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.7 Military Standard:6MIL-STD-129 Marking for Shipment and Storage (MilitaryAgencies)MIL-STD-276 Impregnation of Porous Nonferrous MetalCastings2.8 SAE Standard:AMS 2771 Heat Treatment of Alumi

33、num Alloy Castings2.9 Naval Standard:NAVSEA Technical Publication S9074-AR-GIB-010/2782.10 Aluminum Association Standard:4Designations and Chemical Composition Limits for Alumi-num Alloys in the Form of Castings and Ingot (The PinkSheets)2.11 Other Standards:7EN 14242 Aluminum and Aluminum AlloysChe

34、micalAnalysisInductively Coupled Plasma Optical EmissionSpectral Analysis3. Terminology3.1 DefinitionsRefer to Terminology B881 for definitionsof product terms used in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 die casting, na casting produced by introducingmolten me

35、tal under substantial pressure into a metal die andcharacterized by a high degree of fidelity to the die cavity.3.2.2 rheocasting, nsemi-solid casting process in whichthe thixotropic aluminum alloy feed-stock is produced at thedie cast machine and injected whilst in its thixotropic state intoa metal

36、 die cavity without an intermediate solidification stage.3.2.3 semi-solid casting (SSM), na casting processwherein a partially solidified metal slurry is injected into a diecavity to form cast components.3.2.4 semi-solid slurry, na mixture of solid spherical orglobular primary phase dispersed in liq

37、uid, and which exhibitsthixotropic behavior.3.2.5 slurry, na thick suspension of solids in a liquid.3.2.6 squeeze casting, na process whereby a metal prod-uct is produced by injecting molten metal at a relatively slowspeed through a large ingate into a metal die and held underhigh pressure until sol

38、idification is complete.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from Aluminum Association, Inc., 1400 Crystal Drive Suite 430Arlington, VA 22202, http:/www.aluminum.org.5Available from North American Die Casting Association, (NADCA,) 241Holbrook

39、 Drive, Wheeling, IL 60090 (www.diecasting.org).6Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.7Available from European Committee for Standardization (CEN), 36 Rue deStassart, B-1050, Brussels,

40、 Belgium, http:/www.cenorm.be.B969/B969M 1833.2.7 thixocasting, nsemi-solid casting process whereinthe feed-stock is a pre-cast slug of aluminum alloy capable ofacting in a thixotropic manner, that has been heated to itsthixotropic state and injected into a metal die cavity andallowed to solidify.3.

41、2.8 thixotropic, adja property of some materials to flowlike a high viscosity liquid when a force is applied andmaintain form when the force is removed.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 This specification designation

42、(which includes thenumber, the year, and the revision letter, if applicable),NOTE 1For inch-pound application, specify Specification B969 andfor metric application specify Specification B969M. Do not mix units.4.1.2 Alloy (Section 7 and Table 1),4.1.3 Temper (Section 11, Table X2.1 Table X2.2, Table

43、X2.3 Table X2.4, and Table X2.5 Table X2.6),4.1.4 Applicable drawing or part number, and4.1.4.1 Drawing of casting, when required, giving all nec-essary dimensions and showing latest revisions and allowancesfor linear dimensions (12.2), parting lines (see 12.3), movingdie components (12.4), draft (1

44、2.5), flatness (12.6), cored holethreads (12.7 12.9), and machining stock (12.10). Location ofejector pin marks or parting lines shall be at the option of theproducer, unless specifically designated on the drawing.4.1.5 The quantity in either pieces or pounds kilograms.4.2 Additional tests, options,

45、 and special inspection require-ments as provided below should be justified only on the basisof need. These shall be specified in the contract or purchaseorder, as additional procedures and extended delivery time maybe involved,4.3 Additionally, orders for material to this specificationshall include

46、 the following information when required by thepurchaser:4.3.1 Whether squeeze casting process or the semi-solidthixocast or rheocast process is to be used to produce the parts,4.3.2 Whether chemical analysis and tensile property re-ports are required (see 7.3 and 22, Table 1, Table X2.1 TableX2.2,

47、Table X2.3 Table X2.4, and Table X2.5 Table X2.6),4.3.3 Whether foundry control is required (Section 9),4.3.4 Whether mechanical property tests are required (Sec-tions 10, 11, 14, Table X2.1 Table X2.2, Table X2.3 TableX2.4, and Table X2.5 Table X2.6),4.3.5 Whether yield strength tests are required

48、(Footnote Din Table X2.1 Table X2.2, Table X2.3 Table X2.4, and TableX2.5 Table X2.6),4.3.6 Whether heat treatment is to be performed in accor-dance with AMS 2771 or other practices (Section 16),4.3.7 Whether repairs are permissible (Section 18),4.3.8 Whether inspection is required at the producers

49、works(Section 19),4.3.9 Whether surface requirements will be checked visu-ally or by observational standards where such standards areestablished (20.1),4.3.10 Whether liquid penetrant inspection is required(20.2),4.3.11 Whether radiographic inspection is required and, ifso, the radiographic grade of casting required (20.3 and Table2),4.3.12 Whether certification is required (Section 22),4.3.13 Whether the P