1、Designation: B108/B108M 181Standard Specification forAluminum-Alloy Permanent Mold Castings1This standard is issued under the fixed designation B108/B108M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision.
2、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 U.S. Department of Defense.1NOTEFootnote B of Table 3 was revised editorially in Augus
3、t 2018.1. Scope*1.1 This specification2covers aluminum-alloy permanentmold castings designated as shown in Table 1.1.2 This specification is for aluminum-alloy permanentmold castings used in general purpose applications. It may notaddress the mechanical properties, integrity testing, and veri-ficati
4、on required for highly loaded or safety critical applica-tions.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 For acceptance criteria for inclusion
5、 of new aluminumand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, each system sh
6、all be used independently of the other.Combining values from the two systems may result in non-conformance with 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 app
7、ro-priate safety, health, and environmental practices and deter-mine the applicability 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 Principles for theD
8、evelopment 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 to theextent
9、 referenced herein:2.2 ASTM Standards:3B179 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 Magnesium-Alloy
10、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 to Aluminum-
11、 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 PackagingE29
12、Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base Alloys (Withdrawn 2017)4E94 Guide for Radiographic Examination Using IndustrialRadiographic Film1This specification is under the jurisdict
13、ion 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 May 2018. Originallyapproved in 1936. Last previous edition approved in 2015 as B108/B108M 15.DOI: 10.1520
14、/B0108_B0108M-18E01.2For ASME Boiler and Pressure Code application see related SB-108.3For 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
15、 page onthe ASTM website.4The last approved version of this historical standard is referenced onwww.astm.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 StatesThis internat
16、ional standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Commit
17、tee.1TABLE1ChemicalCompositionLimitsA,B,C,DDesig.ISiFeCuMnMgCrNiZnTiAgBePbSnZrFNsOthersEAl.MinEachTotalF204.00.200.354.25.00.100.150.35.0.050.100.150.30.0.05.0.050.15Rem.242.00.71.03.54.50.351.21.80.251.72.30.350.25.0.050.15Rem.296.02.03.01.24.05.00.350.05.0.350.500.25.0.35Rem.308.05.06.01.04.05.00.
18、500.10.1.00.25.0.50Rem.319.05.56.51.03.04.00.500.10.0.351.00.25.0.50Rem.332.0H8.510.51.22.04.00.500.501.5.0.501.00.25.0.50Rem.333.08.010.01.03.04.00.500.050.50.0.501.00.25.0.50Rem.336.0H11.013.01.20.501.50.350.71.3.2.03.00.350.25.0.05.Rem.354.08.69.40.201.62.00.100.400.6.0.100.20.0.050.15Rem.355.04.
19、55.50.6G1.01.50.50G0.400.60.25.0.350.25.0.050.15Rem.C355.04.55.50.201.01.50.100.400.6.0.100.20.0.050.15Rem.356.06.57.50.6G0.250.35G0.200.45.0.350.25.0.050.15Rem.A356.06.57.50.200.200.100.250.45.0.100.20.0.050.15Rem.357.06.57.50.150.050.030.450.6.0.050.20.0.050.15Rem.A357.06.57.50.200.200.100.400.7.0
20、.100.040.20.0.040.07.0.050.15Rem.E357.06.57.50.10.0.100.550.6.0.100.20.0.002.0.050.15Rem.F357.06.57.50.100.200.100.400.7.0.100.040.20.0.002.0.050.15Rem.359.08.59.50.200.200.100.500.7.0.100.20.0.050.15Rem.443.04.56.00.80.60.500.050.25.0.500.25.0.35Rem.B443.04.56.00.80.150.350.05.0.350.25.0.050.15Rem.
21、A444.06.57.50.200.100.100.05.0.100.20.0.050.15Rem.513.0H0.300.400.100.303.54.5.1.42.20.20.0.050.15Rem.535.00.150.150.050.100.256.27.5.0.100.25.0.0030.007.0.005B.0.05.15Rem.705.00.200.80.200.400.61.41.80.200.40.2.73.30.25.0.05.15Rem.707.00.200.80.200.400.61.82.40.200.40.4.04.50.25.0.05.15Rem.711.0H0.
22、300.71.40.350.60.050.250.45.6.07.00.20.0.05.15Rem.713.00.251.10.401.00.60.200.500.350.157.08.00.25.0.100.25Rem.850.00.70.70.71.30.100.10.0.71.3.0.20.5.57.0.0.30Rem.851.0H2.03.00.70.71.30.100.10.0.300.7.0.20.5.57.0.0.30Rem.852.0H0.400.71.72.30.100.60.9.0.91.5.0.20.5.57.0.0.30Rem.AWhensingleunitsaresh
23、own,theyindicatethemaximumamountspermitted.BAnalysisshallbemadefortheelementsforwhichlimitsareshowninthistable.CThefollowingappliestoallspecifiedlimitsinthistable:Forpurposesofdeterminingconformancetotheselimits,anobservedvalueoracalculatedvalueobtainedfromanalysisshallberoundedtothenearestunitinthe
24、lastright-handplaceoffiguresusedinexpressingthespecifiedlimitinaccordancewiththerounding-offmethodofPracticeE29.DIncaseofdiscrepancybetweenthevalueslistedinTable1andthoselistedinthe“DesignationsandChemicalCompositionLimitsforAluminumAlloysintheFormofCastingsandIngot(ThePinkSheets)”thecompositionlimi
25、tsregisteredwiththeAluminumAssociationandpublishedinthe“PinkSheets”shallbeconsideredthecontrollingcomposition.E“Others”includeslistedelementsforwhichnospecificlimitisshownaswellasunlistedmetallicelements.Theproducermayanalyzesamplesfortraceelementsnotspecifiedintheregistrationorspecification.However
26、,suchanalysisisnotrequiredandmaynotcoverallmetallic“others”elements.Shouldanyanalysisbytheproducerorthepurchaserestablishthatan“others”elementexceedsthelimitof“Each”orthattheaggregateofseveral“others”elementsexceedsthelimitof“Total,”thematerialshallbeconsiderednonconforming.FThesumofthose9Others9met
27、allicelements0.010percentormoreeach,expressedtotheseconddecimalbeforedeterminingthesum.GIfironexceeds0.45,manganesecontentshallnotbelessthanone-halfironcontent.H336.0formerlyA332.0,332.0formerlyF332.0,513.0formerlyA514.0,711.0formerlyC712.0,851.0formerlyA850.0,852.0formerlyB850.0.IForacrossreference
28、ofcurrentandformeralloydesignationsseetheAluminumAssociations“DesignationsandChemicalCompositionLimitsforAluminumAlloysintheFormofCastingsandIngot(ThePinkSheets).”B108/B108M 1812E155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant Examination
29、for GeneralIndustryE607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere (Withdrawn 2011)4E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spark Atom
30、ic 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 CastingsIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System2.3 ANSI
31、 Standard:5H35.1/H35.1(M) Alloy and Temper Designation Systems forAluminum2.4 Military Standards:6MIL-STD-129 Marking for Shipment and StorageMIL-STD-276 Impregnation of Porous Nonferrous MetalCastingsNAVSEA S9074-AR-GIB-010/278 Requirements for Fabri-cation Welding and Inspection, and Casting Inspe
32、ction andRepair for Machinery, Piping, and Pressure Vessels2.5 AMS Specification:AMS 2771 Heat Treatment of Aluminum Alloy Castings72.6 Federal Standard:6Fed Std. No. 123 Marking for Shipment (Civil Agencies)2.7 Aluminum Association Standard:5Designations and Chemical Composition Limits for Alumi-nu
33、m Alloys in the Form of Castings and Ingot (The PinkSheets)2.8 Other Standards:8CEN EN 14242 Aluminum andAluminumAlloys, ChemicalAnalysis, Inductively Coupled Plasma Optical EmissionSpectral Analysis3. Terminology3.1 DefinitionsRefer to Terminology B881 for definitionsof product terms used in this s
34、pecification.4. Ordering Information4.1 Orders for material under this specification shall includethe following information (see 1.4 and 1.5):4.1.1 This specification designation (which includes thenumber, the year, and the revision letter, if applicable),NOTE 1For inch-pound application, specify Sp
35、ecification B108 andfor metric application specify Specification B108M. Do not mix units.4.1.2 Alloy (see Section 7 and Table 1),4.1.3 Temper (see Section 10 and Table 2 Table 3),4.1.4 Applicable drawing or part number, and4.1.5 The quantity in either pieces or pounds kilograms.4.2 Additionally, ord
36、ers for material to this specificationshall include the following information when required by thepurchaser.4.2.1 Whether foundry control is required (see Section 9),4.2.2 Whether yield strength tests are required (see 10.1 andTable 2, Footnote C, Table 4, Footnote D),4.2.3 Whether castings or test
37、bars, or both, are to beartificially aged for Alloys 705.0-T5, 707.0-T5, and 713.0-T5(see 10.3),4.2.4 Whether test specimens cut from castings are requiredin addition to or instead of separately cast specimens (seeSections 10, 12.2, 13.2, and 15),4.2.5 Whether heat treatment is to be performed in ac
38、cor-dance with AMS 2771 (see Section 16),4.2.6 Whether repairs are permissible (see Section 17),4.2.7 Whether inspection is required at the producersworks (see Section 18),4.2.8 Whether certification is required (see Section 22),4.2.9 Whether surface requirements will be checked visu-ally or by obse
39、rvational standards where such standards areestablished (see 19.1),4.2.10 Whether liquid penetrant inspection is required (see19.2),4.2.11 Whether radiographic inspection is required and, ifso, the radiographic grade of casting required (19.3, Table 4),and4.2.12 Whether Practices B660 applies and, i
40、f so, the levelsof preservation, packaging, and packing required (see 24.4).5. Responsibility for Quality Assurance5.1 Unless otherwise specified in the contract or purchaseorder, the producer shall be responsible for the performance ofall inspections and test requirements specified herein. Unlessot
41、herwise agreed upon, the producer may use his own or anyother suitable facilities for the performance of the inspectionand test requirements specified herein. The purchaser shallhave the right to perform any of the inspections and tests setforth in the specification where such inspections are deemed
42、necessary to confirm that the material conforms to prescribedrequirements.6. Manufacture6.1 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 pro
43、ducer, except where moldequipment is furnished by the purchaser.7. Chemical Composition7.1 The product shall conform to the chemical compositionlimits prescribed in Table 1. Conformance shall be determinedby the producer by taking samples at the time castings are5Available from Aluminum Association,
44、 Inc., 1400 Crystal Drive Suite 430Arlington, VA 22202 http:/www.aluminum.org.6Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.7Available from Society of Automotive Engineers (SAE), 400 Commonwea
45、lthDr., Warrendale, PA 15096-0001, http:/www.sae.org.8Available from European Committee for Standardization (CEN), 36 Rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.B108/B108M 1813TABLE 2 Tensile RequirementsA,B(Inch-Pound Units)DesignationFTemperCTensile Strength, min,ksiYield Stren
46、gthD(0.2 % offset),min, ksi (MPa)Elongation in 2 in.or 4 diameter,min, %Typical BrinellHardness,E500 kgf,10 mm204.0 T4 separately cast specimens 48.0 29.0 8.0 . . .242.0 T571 34.0 . . .G105T61 40.0 . . .G110296.0 T4 33.0 15.0 4.5 75T6 35.0 . . . 2.0 90T7 33.0 16.0 3.0 . . .308.0 F 24.0 . . . . . . 7
47、0319.0 F 27.0 14.0 2.5 95332.0HT5 31.0 . . .G105333.0 F 28.0 . . .G90T5 30.0 . . .G100T6 35.0 . . .G105T7 31.0 . . .G90336.0HT551 31.0 . . .G105T65 40.0 . . .G125354.0 T61separately cast specimens 48.0 37.0 3.0casting, designated areaI47.0 36.0 3.0castings, no location designatedI43.0 33.0 2.0T62separately cast specimens 52.0 42.0 2.0castings, designated areaI50.0 42.
