1、Designation: B969 10Standard Specification forAluminum-Alloy Castings Produced by the SqueezeCasting, Thixocast and Rheocast Semi-Solid CastingProcesses1This standard is issued under the fixed designation B969; the number immediately following the designation indicates the year oforiginal adoption o
2、r, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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*
3、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 withANSI H35.1/
4、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 aluminum all
5、oys 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 of the other
6、. 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 practices a
7、nd determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B179 Specification for Aluminum Alloys in Ingot andMolten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Nonferrous Met-als and Alloys, Cast and W
8、roughtB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB881 Terminology Relating toAl
9、uminum- and Magnesium-Alloy ProductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesD3951 Practice for Commercial PackagingE8/E8M Test Methods for Tension Testing of MetallicMaterialsE23 Test Methods for Notched Bar Impact Testing ofMetallic MaterialsE29 Practice
10、for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base AlloysE94 Guide for Radiographic ExaminationE155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE165 Practice for Liquid Pen
11、etrant Examination for GeneralIndustryE505 Reference Radiographs for Inspection of Aluminumand Magnesium Die CastingsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech
12、-nique Nitrogen AtmosphereE716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spectrochemical Analysis1This test method is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility
13、 of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.Current edition approved Nov. 1, 2010. Published December 2010. Originallyapproved in 2009. Last previous edition approved in 2009 as B969 09. DOI:10.1520/B0969-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcon
14、tact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page 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, Wes
15、t Conshohocken, PA 19428-2959, United States.TABLE 1 Chemical Composition LimitsA,B,CAlloy Composition,%ANSIDUNS Silicon Iron Copper Manganese Magnesium 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.
16、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 RemainderA356.0 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 Rem
17、ainder366.0 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 RemainderA390.0 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 pe
18、rmitted.BAnalysis shall be made for the elements for which limits are shown in this table.CThe following applies to all specified limits in this table: For purposes of determining conformance to these limits, an observed value or a calculated value obtained from analysis shall be rounded to the near
19、est unitin the last right-hand place of figures used in expressing the specified limit in accordance with the rounding method of Practice E29.DASTM 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 e
20、lements. The producer may analyze samples for trace elements not specified in the specification. However, such analysisis not required and may not 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 tha
21、t the aggregate of several OtherElements exceeds the limit of Total, the material shall be considered nonconforming.FOther ElementsTotal shall be 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 %, ma
22、nganese 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 is expressed is exempted for some long standing alloys. See A2.2.6.B969102E1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Atomic Emissio
23、n Spectrometry2.2 ANSI Standard:3H35.1 / H35.1 (M) - 2006 American National 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 Sta
24、ndards for Die Cast-ings:Engineering and Design: Coordinate DimensioningS-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 Requiremen
25、ts: Standard TolerancesS-4A-6-09 Cored Holes for Cut Threads: Standard 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-
26、4-09 Draft Requirements: Precision TolerancesP-4A-5-09 Flatness Requirements: 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 Des
27、ign: Additional Specifica-tion GuidelinesG-6-1-09 Pressure Tightness in 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
28、 Finish, As CastG-6-7-09 Die Cast Lettering and Ornamentation2.5 Federal 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 Tec
29、hnical Publication S9074-AR-GIB-010/2782.9 Other Standards:6EN 14242 Aluminum 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 Definit
30、ions of Terms Specific to this Standard:3.2.1 Squeeze Castinga process 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
31、in a liquid.3.2.3 Semi-Solid Slurrya mixture of solid spherical orglobular 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.
32、2.5 Semi-Solid Casting (SSM)a casting process whereina partially solidified 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 bee
33、n heated to itsthixotropic state and injected into a metal die cavity andallowed 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
34、 intermediate solidification stage.3.2.8 Die Castinga casting produced 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 fol
35、lowing information:4.1.1 This specification designation (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
36、).4.1.3 Temper (Section 11, Table X2.1 Table X2.2, TableX2.3 Table X2.4, 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 lin
37、es (12.3), moving diecomponents (12.4), draft (12.5), flatness (12.6), cored holethreads (12.7-12.9), and machining stock (12.10). Location of3Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org.4Available from North American die Castin
38、g Association, (NADCA,) 241Holbrook Drive, Wheeling, IL 60090. (www.diecasting.org)5Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.6Available from European Committee for Standardization (CEN), 3
39、6 rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.B969 103ejector 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 inspectio
40、n 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 the following informa
41、tion 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 (Sections 7.5 and 22, Table 1, and Table X2.1Table X2.2, Table X2.3 Ta
42、ble X2.4, and Table X2.5 TableX2.6),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 (Footnote Din T
43、able 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 works(Section 1
44、9),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 (20.3),4.3.12 Whether certification is required (Se
45、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,
46、 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
47、 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
48、-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 rig
49、ht 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 DefinitionAn inspection lot shall be defined asfollows:6.2.1 An inspection lot shall consist of the production fromeach die or compound die on each machine for each 24 hduring the first week (or five calendar days) of continuousnormal operation and the production for each 48 h thereafter ofcontinuous
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