1、Designation: B108/B108M 121Standard 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 Department of Defense.1NOTESection 10.2 was corrected editorially in July 2012.1. Scop
3、e*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-fication required fo
4、r highly loaded or safety critical applica-tions.1.3 Alloy and temper designations are in accordance withANSI 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
5、shall be furnished to the inch-pound units.1.5 For acceptance criteria for inclusion 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. Th
6、evalues stated in each system may not be exact equivalents;therefore, each system shall 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
7、 with its use. It is theresponsibility of the user of 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 thedate of casting purchase f
8、orm a part of this specification to theextent referenced herein:2.2 ASTM Standards:3B179 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 WroughtB557 Test Methods for Te
9、nsion 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 toAluminum- and Magnesium-Alloy Pr
10、oductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesD3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base Alloy
11、sE94 Guide for Radiographic ExaminationE155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE165 Practice for Liquid Penetrant Examination for GeneralIndustryE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)E607 Test Method for Atomic Emission S
12、pectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere4E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spectrochemical Analysis1This specification is under the jurisdiction of ASTM Commit
13、tee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.Current edition approved May 1, 2012. Published June 2012. Originallyapproved in 1936. Last previous edition approved in 2011 as B108/B108M 11.DOI: 10.1520/B0108_B0108M-12.2
14、For 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 page onthe ASTM webs
15、ite.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.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.E1251 Test Method fo
16、r 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 Standard:5H35.1/H35.1M Alloy and Temper Desi
17、gnation 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 Inspection andRepair for Machinery, Piping, and Pres
18、sure 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 Other Standards:85Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org.6
19、Available 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 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.8Available from European C
20、ommittee for Standardization (CEN), 36 rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.TABLE 1 Chemical Composition LimitsA,B,CAlloy Composition, %ANSIDUNS Aluminum Silicon Iron CopperManga-neseMagne-siumChromium Nickel Zinc Titanium TinOtherElementsEEach TotalF204.0 A02040 remainder
21、0.20 0.35 4.25.0 0.10 0.150.35 . 0.05 0.10 0.150.30 0.05 0.05 0.15242.0 A02420 remainder 0.7 1.0 3.54.5 0.35 1.21.8 0.25 1.72.3 0.35 0.25 . 0.05 0.15296.0 remainder 2.03.0 1.2 4.05.0 0.35 0.05 . 0.35 0.50 0.25 . . 0.35308.0 remainder 5.06.0 1.0 4.05.0 0.50 0.10 . . 1.0 0.25 . . 0.50319.0 A03190 rema
22、inder 5.56.5 1.0 3.04.0 0.50 0.10 . 0.35 1.0 0.25 . . 0.50332.0GA03320 remainder 8.510.5 1.2 2.04.0 0.50 0.501.5 . 0.50 1.0 0.25 . . 0.50333.0 A03330 remainder 8.010.0 1.0 3.04.0 0.50 0.050.50 . 0.50 1.0 0.25 . . 0.50336.0GA03360 remainder 11.013.0 1.2 0.501.5 0.35 0.71.3 . 2.03.0 0.35 0.25 . 0.05 .
23、354.0 A03540 remainder 8.69.4 0.20 1.62.0 0.10 0.400.6 . . 0.10 0.20 . 0.05 0.15355.0 A03550 remainder 4.55.5 0.6H1.01.5 0.50H0.400.6 0.25 . 0.35 0.25 . 0.05 0.15C355.0 A33550 remainder 4.55.5 0.20 1.01.5 0.10 0.400.6 . . 0.10 0.20 . 0.05 0.15356.0 A03560 remainder 6.57.5 0.6H0.25 0.35H0.200.45 . .
24、0.35 0.25 . 0.05 0.15A356.0 A13560 remainder 6.57.5 0.20 0.20 0.10 0.250.45 . . 0.10 0.20 . 0.05 0.15357.0 remainder 6.57.5 0.15 0.05 0.03 0.450.6 . . 0.05 0.20 . 0.05 0.15A357.0 A13570 remainder 6.57.5 0.20 0.20 0.10 0.400.7 . . 0.10 0.040.20 . 0.05I0.15E357.0 remainder 6.57.5 0.10 0.10 0.550.6 . .
25、 . 0.100.20 . 0.05J0.15F357.0 remainder 6.57.5 0.10 0.20 0.10 0.400.7 . . 0.10 0.040.20 . 0.05J0.15359.0 A03590 remainder 8.59.5 0.20 0.20 0.10 0.500.7 . . 0.10 0.20 . 0.05 0.15443.0 A04430 remainder 4.56.0 0.8 0.6 0.50 0.05 0.25 . 0.50 0.25 . . 0.35B443.0 A24430 remainder 4.56.0 0.8 0.15 0.35 0.05
26、. . 0.35 0.25 . 0.05 0.15A444.0 A14440 remainder 6.57.5 0.20 0.10 0.10 0.05 . . 0.10 0.20 . 0.05 0.15513.0GA05130 remainder 0.30 0.40 0.10 0.30 3.54.5 . . 1.42.2 0.20 . 0.05 0.15535.0 A05350 remainder 0.15 0.15 0.05 0.100.25 6.27.5 . . . 0.100.25 . 0.05K0.15705.0 A07050 remainder 0.20 0.8 0.20 0.400
27、.6 1.41.8 0.200.40 . 2.73.3 0.25 . 0.05 0.15707.0 A07070 remainder 0.20 0.8 0.20 0.400.6 1.82.4 0.200.40 . 4.04.5 0.25 . 0.05 0.15711.0GA07110 remainder 0.30 0.71.4 0.350.65 0.05 0.250.45 . . 6.07.0 0.20 . 0.05 0.15713.0 A07130 remainder 0.25 1.1 0.401.0 0.6 0.200.50 0.35 0.15 7.08.0 0.25 . 0.10 0.2
28、5850.0 A08500 remainder 0.7 0.7 0.71.3 0.10 0.10 . 0.71.3 . 0.20 5.57.0 . 0.30851.0GA08510 remainder 2.03.0 0.7 0.71.3 0.10 0.10 . 0.30.7 . 0.20 5.57.0 . 0.30852.0GA08520 remainder 0.40 0.7 1.72.3 0.10 0.60.9 . 0.91.5 . 0.20 5.57.0 . 0.30AWhen single units are shown, these indicate the maximum amoun
29、ts 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 table: For purposes of determining conformance to these limits, an observed value or a calculated value obtainedfrom analysis shall be rounded to the
30、nearest unit in the last right-hand place of figures used in expressing the specified limit in accordance with the rounding method ofPractice E29.DASTM alloy designations are recorded in Practice B275.EOthers includes listed elements for which no specific limit is shown as well as unlisted metallic
31、elements. The producer may analyze samples for trace elements notspecified in the specification. However, such analysis is not required and may not cover all metallic Others elements. Should any analysis by the producer or the purchaserestablish that an Others element exceeds the limit of Each or th
32、at the aggregate of several Others elements exceeds the limit of Total, the material shall be considerednonconforming.FOther ElementsTotal shall be the sum of unspecified metallic elements 0.010 % or more, rounded to the second decimal before determining the sum.G336.0 formerly A332.0, 332.0 formerl
33、y F332.0, 513.0 formerly A514.0, 711.0 formerly C712.0, 851.0 formerly A850.0, 852.0 formerly B850.0.HIf the iron content exceeds 0.45 %, manganese content shall not be less than one half of the iron.IBeryllium 0.040.07.JBeryllium 0.002 maxKBeryllium 0.0030.007, boron 0.005 max.B108/B108M 1212CEN EN
34、 14242 Aluminum and Aluminum Alloys, Chemi-cal Analysis, Inductively Coupled Plasma Optical Emis-sion Spectral Analysis3. Terminology3.1 DefinitionsRefer to Terminology B881 for definitionsof product terms used in this specification.4. Ordering Information4.1 Orders for material under this specifica
35、tion 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 Specification B108 andfor metric application specify Specification B108M. Do not m
36、ix 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,4.1.5 The quantity in either pieces or pounds kilograms,4.2 Additionally, orders for material to this specificationshall include the following information when r
37、equired 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 bars, or both, are to beartificially aged for Alloys 705.0-T5, 707.0-T5, and 713.0
38、-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 accor-dance with AMS 2771 (see Section 16),4.2.6 Whether repairs are permissible (se
39、e 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 observational standards where such standards areestablished (see 19.1),4.2.10 Whether
40、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, if so, the levelsof preservation, packaging and packing required (see 23.4).5. Resp
41、onsibility 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. Unlessotherwise agreed upon, the producer may use his own or anyother suitable facilities f
42、or 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 deemednecessary to confirm that the material conforms to prescribedrequirements.6. Manufa
43、cture6.1 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 producer, except where moldequipment is furnished by the purchaser.7. Chemical Composi
44、tion7.1 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 arepoured in accordance with E716 and analyzed in accordancewith E607, E1251, E34,orCEN EN 14242. If the producer hasdeterm
45、ined the composition of the material during casting, theyshall not be required to sample and analyze the finishedproduct.7.2 If it becomes necessary to analyze castings for confor-mance to chemical composition limits, the method used tosample castings for the determination of chemical compositionsha
46、ll be by agreement between the producer and the purchaser.Analysis shall be performed in accordance with E716, E607,E1251, E34,orCEN EN 14242 (ICP method).7.3 Other methods of analysis or in the case of a dispute themethod of analysis shall be agreed upon by the producer andthe purchaser.7.4 A sampl
47、e for determination of chemical compositionshall be taken to represent one of the following:7.4.1 Not more than 4000 lb 2000 kg of clean castings ora single casting poured from one furnace. The maximumelapsed time between determinations shall be established foreach alloy, but in any case the maximum
48、 elapsed time shall notexceed 8 hours.TABLE 2 Tensile RequirementsA(Inch-Pound Units)NOTE 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
49、 nearest 0.5 %, both in accordance with the rounding method of Practice E29.AlloyTemperBTensileStrength, min,ksiYield StrengthC(0.2 % offset),min, ksiElongation in2 in. or 4 3Diameter, min, %Typical BrinellHardnessD500-kgf load,10-mm ballANSIEUNS204.0 A02040 T4 separately cast specimens 48.0 29.0 8.0 .242.0 A02420 T571 34.0 .F105T61 40.0 .F110296.0 A02960 T4 33.0 15.0 4.5 75T6 35.0 . 2.0 90B108/B108M 1213TABLE 2 ContinuedAlloyTemperBTensileStrength, min,ksiYield StrengthC(0
