1、Designation: B969/B969M 11Standard Specification forAluminum-Alloy Castings Produced by the SqueezeCasting, Thixocast and Rheocast Semi-Solid CastingProcesses1This standard is issued under the fixed designation B969/B969M; the number immediately following the designation indicates the yearof origina
2、l 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.This standard has been approved for use by agencies of the Department of Defen
3、se.1. Scope*1.1 This specification covers aluminum-alloy castings, pro-duced by the thixocast, rheocast, semi-solid and squeezecasting processes, shown in Table 1.1.2 This specification is not intended for castings used inaerospace applications.1.3 Alloy and temper designations are in accordance wit
4、hANSI H35.1/H35.1(M). The equivalent unified numberingsystem alloy designations are in accordance with PracticeE527.1.4 Unless the order specifies the “M” specification desig-nation, the material shall be furnished to the inch-pound units.1.5 For acceptance criteria for inclusion of new aluminumand
5、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 equivalents; therefore, eachsystem shall be used independently
6、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 this standard to establish appro-priate safety and health
7、 practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2NOTE 1The following documents of the issue in effect on the date ofpurchase form a part of this specification to the extent referenced herein.B179 Specification for Aluminum
8、Alloys in Ingot andMolten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Nonferrous Met-als and Alloys, Cast and WroughtB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought a
9、nd CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB881 Terminology Relating toAluminum- and Magnesium-Alloy ProductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesD3951 Practice for Commerc
10、ial PackagingE8/E8M Test Methods for Tension Testing of MetallicMaterialsE23 Test Methods for Notched Bar Impact Testing ofMetallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminu
11、m-Base AlloysE94 Guide for Radiographic ExaminationE155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant Examination for GeneralIndustryE505 Reference Radiographs for Inspection of Aluminumand Magnesium Die CastingsE527 Practice for Numbering M
12、etals and Alloys in theUnified Numbering System (UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen AtmosphereE716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Compositi
13、on by Spectrochemical Analysis1This test 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 1, 2011. Published June 2011. Originallyapproved in 2009
14、. Last previous edition approved in 2010 as B969 10. DOI:10.1520/B0969_B0969M-11.2For 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
15、 onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 1 Chemical Composition LimitsA,B,CAlloy Composition,%ANSIDUNS Silicon Iron Copper Manganese M
16、agnesium Chromium Nickel Zinc Titanium Tin Other ElementsEAluminumEach TotalF319.0 A03190 5.56.5 1.0 3.04.0 0.50 0.10 . 0.35 1.0 0.25 . . 0.50 Remainder355.0 A03550 4.55.5 0.6G1.01.5 0.50G0.400.6 0.25 . 0.35 0.25 . . 0.05 0.15 Remainder356.0 A03560 6.57.5 0.6G0.25 0.35G0.200.45 0.35 0.25 0.05 0.15 R
17、emainderA356.0 A13560 6.57.5 0.20 0.20 0.10 0.250.45 0.10 0.20 0.05 0.15 Remainder357.0 A03570 6.57.5 0.15 0.05 0.03 0.450.6 . . 0.05 0.20 . . 0.05 0.15 Remainder366.0 6.57.5 0.15 0.05 0.03 0.51.2 0.05 0.20 0.05 0.15 Remainder380.0 A03800 7.59.5 2.0 3.04.0 0.50 0.10 . 0.50 3.0 . 0.35 . . 0.50 Remain
18、derA390.0 A13900 16.018.0 0.50 4.05.0 0.10 0.450.65H. . 0.10 0.20 . . 0.10 0.20 RemainderAWhen single units are shown, these indicate the maximum amounts permitted.BAnalysis shall be made for the elements for which limits are shown in this table.CThe following applies to all specified limits in this
19、 table: For purposes of determining conformance to these limits, an observed value or a calculated value obtained from analysis shall be rounded to the nearest unitin the last right-hand place of figures used in expressing the specified limit in accordance with the rounding method of Practice E29.DA
20、STM alloy designations are defined in ANSI H35.1/H35.1(M)EOther includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements not specified in the specification. However, such analysisis not required and may n
21、ot cover all metallic Other Elements. Should any analysis by the producer or the purchaser establish that an Other Elements exceeds the limit of Each or that the aggregate of several OtherElements exceeds the limit of Total, the material shall be considered nonconforming.FOther ElementsTotal shall b
22、e the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.GIf the iron content exceeds 0.45 %, manganese content shall not be less than one half of the iron.HThe Aluminum Association ruling on the number of decimal places to which Mg percent
23、 is expressed is exempted for some long standing alloys. See A2.2.6.B969/B969M112E1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Atomic Emission SpectrometryE2422 Digital Reference Images for Inspection of Alumi-num Castings2.2 ANSI Standard:3H35.1 / H35.1 (M) - 2006 American Nati
24、onal StandardAlloy and Temper Designation Systems for Aluminum2.3 NADCA Standards:4#403 Product Specification Standards for Die Castings Pro-duced by the Semi-Solid and Squeeze Casting Processes2.4 NADCA Product Specification Standards for Die Cast-ings:Engineering and Design: Coordinate Dimensionin
25、gS-4A-1-09 Linear Dimensions: Standard TolerancesS-4A-2-09 Parting Line: Standard TolerancesS-4A-3-09 Moving Die Components (MDC): Standard Tol-erancesS-4A-4-09 Draft Requirements: Standard TolerancesS-4A-5-09 Flatness Requirements: Standard TolerancesS-4A-6-09 Cored Holes for Cut Threads: Standard
26、Toler-ancesS-4A-8-09 Cored Holes for Pipe Threads: Standard Toler-ancesP-4A-1-09 Linear Dimensions: Precision TolerancesP-4A-2-09 Parting Line: Precision TolerancesP-4A-3-09 Moving Die Components (MDC): Precision Tol-erancesP-4A-4-09 Draft Requirements: Precision TolerancesP-4A-5-09 Flatness Require
27、ments: Precision TolerancesP-4A-6-09 Cored Holes for Cut Threads: Precision Toler-ancesP-4A-7-09 Cored Holes for Formed Threads: PrecisionTolerancesS/P-4-9-09 Machining Stock Allowances (Standard andPrecision) Engineering and Design: Additional Specifica-tion GuidelinesG-6-1-09 Pressure Tightness in
28、 Die Cast PartsG-6-2-09 Fillets, Ribs and Corners in Die Cast Parts (1 of 2)G-6-3-09 Fillets, Ribs and Corners in Die Cast Parts (2 of 2)G-6-4-09 Ejector Pins, Pin Marks and Pin FlashG-6-5-09 Casting Flash removalG-6-6-09 Surface Finish, As CastG-6-7-09 Die Cast Lettering and Ornamentation2.5 Federa
29、l Standard:5Fed. Std. No. 123 Marking for Shipment (Civil Agencies)2.6 Military Standard:5MIL-STD-129 Marking for Shipment and Storage (MilitaryAgencies)MIL-STD-2762.7 SAE Standard:AMS-STD-184AMS 27712.8 Naval Standard:NAVSEA Technical Publication S9074-AR-GIB-010/2782.9 Other Standards:6EN 14242 Al
30、uminum and Aluminum Alloys ChemicalAnalysis Inductively 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 Squeeze Castinga process
31、whereby a metal productis produced by injecting molten metal at a relatively slow speedthrough a large ingate into a metal die and held under highpressure until solidification is complete.3.2.2 Slurrya thick suspension of solids in a liquid.3.2.3 Semi-Solid Slurrya mixture of solid spherical orglobu
32、lar primary phase dispersed in liquid, and which exhibitsthixotropic behavior.3.2.4 Thixotropica property of some materials to flow likea high viscosity liquid when a force is applied and maintainform when the force is removed.3.2.5 Semi-Solid Casting (SSM)a casting process whereina partially solidi
33、fied metal slurry is injected into a die cavity toform cast components,3.2.6 Thixocastingsemi-solid casting process wherein thefeed-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 a
34、ndallowed to solidify.3.2.7 Rheocastingsemi-solid casting process in which thethixotropic aluminum alloy feed-stock is produced at the diecast machine and injected whilst in its thixotropic state into ametal die cavity without an intermediate solidification stage.3.2.8 Die Castinga casting produced
35、by introducing mol-ten metal under substantial pressure into a metal die andcharacterized by a high degree of fidelity to the die cavity.4. Ordering Information4.1 Orders for material under this specification shall includethe following information:4.1.1 This specification designation (which includes
36、 thenumber, the year, and the revision letter, if applicable),NOTE 2For 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, TableX2.3 Table X2.4
37、, and Table X2.5 Table X2.6),4.1.4 Applicable drawing or part number,4.1.4.1 Drawing of casting, when required, giving all nec-essary dimensions and showing latest revisions and allowancesfor linear dimensions (12.2), parting lines (12.3), moving diecomponents (12.4), draft (12.5), flatness (12.6),
38、cored hole3Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org.4Available from North American die Casting Association, (NADCA,) 241Holbrook Drive, Wheeling, IL 60090. (www.diecasting.org)5Available from Standardization Documents Order D
39、esk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.6Available from European Committee for Standardization (CEN), 36 rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.B969/B969M 113threads (12.7-12.9), and machining stock (12.10). Loc
40、ation 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 and special inspection require-ments as provided below should be justified only on the
41、 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 the following information when required by thepurchaser.4.3.1 Whether squeeze casting
42、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 (Sections 7.5 and 22, Table 1, and Table X2.1Table X2.2, Table X2.3 Table X2.4, and Table X2.5 TableX2.6),4.3.3 Whether foundry control
43、 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 (Footnote Din Table X2.1 Table X2.2, Table X2.3 Table X2.4, and TableX2.5 Table
44、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 works(Section 19),4.3.9 Whether surface requirements will be checked visu-ally o
45、r 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 (Se
46、ction 22),4.3.13 Whether the standard AMS-STD-184 applies to themarking of castings, (24.1),4.3.14 Whether Practices B660 applies and, if so, the levelsof preservation, packaging and packing required (25.3).4.3.15 Whether marking in accordance with Fed. Std. 123or D3951 or MIL-STD-129 applies (25.2,
47、 25.3),4.3.16 Whether Practices B660 applies and, if so, the levelsof preservation, packaging and packing required (25.3).5. Manufacture5.1 The responsibility of furnishing castings that can be laidout and machined to the final dimensions within the permis-sible variations specified, as shown on the
48、 blueprints ordrawings, shall rest with the producer, except when the die isfurnished by the purchaser.6. Quality Assurance6.1 Responsibility for InspectionWhen specified in thecontract or purchase order, the producer or supplier is respon-sible for the performance of all inspection and test require
49、-ments specified herein. Except as otherwise specified in thecontract or order, the producer or supplier may use his own orany other suitable facilities for the performance of the inspec-tion and test requirements specified herein, unless disapprovedby the purchaser. The purchaser shall have the right to performany of the inspections and tests set forth in this specification.Quality assurance standards shall be agreed upon between theproducer or supplier and purchaser at the time a contract ororder is placed.6.2 Lot D
