1、Designation: B108/B108M 11Standard 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. A
2、 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.1. Scope*1.1 This specification2covers aluminum-alloy permanentmo
3、ld castings designated as shown in Table 1.1.2 This specification is not intended for aluminum-alloypermanent mold castings used in aerospace applications.1.3 Alloy and temper designations are in accordance withANSI H35.1/H35.1(M). The equivalent unified numberingsystem alloy designations are in acc
4、ordance 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 alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 U
5、nitsThe 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 shall be used independently of the other.Combining values from the two systems may result in non-conformance wit
6、h 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 and determine the applica-bility of regulatory limitations prior to use.
7、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 referenced herein:2.2 ASTM Standards:3B179 Specification for Aluminum Alloys in Ingot andMolten Forms for Castings from All Casting ProcessesB275 Pr
8、actice 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 and CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packa
9、ging/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 Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermin
10、e 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 Penetrant Examination for GeneralIndustryE527 Practice
11、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-nique Nitrogen Atmosphere4E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofCh
12、emical Composition by Spectrochemical AnalysisE1251 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
13、Metric System2.3 ANSI Standard:5H35.1/H35.1M Alloy and Temper Designation Systems forAluminum1This specification 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 appr
14、oved Dec. 1, 2011. Published December 2011. Originallyapproved in 1936. Last previous edition approved in 2008 as B108/B108M 08.DOI: 10.1520/B0108_B0108M-11.2For ASME Boiler and Pressure Code application see related SB-108.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orconta
15、ct ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.5Available from Aluminum Association, Inc.,
16、 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.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.2.4 Military Standards:6MIL-STD-129 Marking f
17、or 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 Pressure Vessels2.5 AMS Specification:AMS 2771 Heat Treatment of Aluminum Al
18、loy Castings72.6 Federal Standard:6Fed Std. No. 123 Marking for Shipment (Civil Agencies)2.7 Other Standards:8CEN EN 14242 Aluminum and Aluminum Alloys, Chemi-cal Analysis, Inductively Coupled Plasma Optical Emis-sion Spectral Analysis3. Terminology3.1 DefinitionsRefer to Terminology B881 for defini
19、tionsof product terms used in this specification.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),6Availab
20、le 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 Committe
21、e 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 0.20 0.
22、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 remainder 5
23、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 .354.0 A
24、03540 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 . . 0.35 0.
25、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 . . . 0.10
26、0.20 . 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 . . 0.3
27、5 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 0.400.6 1.41
28、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 0.25850.0
29、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 amounts perm
30、itted.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 nearest
31、 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 element
32、s. 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 that the
33、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 formerly F332.
34、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 112NOTE 1For inch
35、pound application, specify Specification 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,4.1.5 The quantity in either pieces or pounds kilog
36、rams,4.2 Additionally, orders 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
37、3 Whether castings or test 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 treatm
38、ent is to be performed in accor-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
39、checked visu-ally or by observational 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 P
40、ractices B660 applies and, if so, the levelsof preservation, packaging and packing required (see 23.4).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
41、 specified herein. Unlessotherwise 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
42、such inspections are deemednecessary 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 ordrawin
43、gs, shall rest with the producer, 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 arepoured in
44、accordance with E716 and analyzed in accordancewith E607, E1251, E34,orCEN EN 14242. If the producer hasdetermined 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 c
45、hemical composition limits, the method used tosample castings for the determination of chemical compositionshall 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
46、 the case of a dispute themethod of analysis shall be agreed upon by the producer andthe purchaser.7.4 A sample 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.
47、The maximumelapsed time between determinations shall be established foreach alloy, but in any case the maximum 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 an
48、d yield strength shall be rounded to thenearest 0.1 ksi, and each value for elongation shall be rounded to the 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,
49、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 90T7 33.0 16.0 3.0 .308.0 A03080 F 24.0 . . 70319.0 A03190 F 27.0 14.0 2.5 95332.0GA03320 T5 31.0 .F105333.0 A03330 F 28.0 .F90T5 30.0 .F100T6 35.0 .F105T7 31.0 .F90336.0GA03360 T551 31.0 .F105B108/B108M 113TABLE 2 ContinuedAlloyTemperBTensileStrength, min,ksiYield StrengthC(0.2 %
