1、Designation: B 108/B 108M 08Standard Specification forAluminum-Alloy Permanent Mold Castings1This standard is issued under the fixed designation B 108/B 108M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revisio
2、n. 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.1. Scope*1.1 This specification2covers aluminum-alloy permane
3、ntmold 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
4、 accordance with PracticeE 527.1.4 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.
5、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 shall be used independently of the other.Combining values from the two systems may result in non-conformanc
6、e 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 appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to
7、 use.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:3B 179 Specification for Aluminum Alloys in Ingot andMolten Forms for Castings from All Casting ProcessesB
8、 275 Practice for Codification of Certain Nonferrous Met-als and Alloys, Cast and WroughtB 557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB 557M Test Methods for Tension Testing Wrought andCast Aluminum- and Magnesium-Alloy Products (Metric)B 660 Practices
9、 for Packaging/Packing of Aluminum andMagnesium ProductsB 881 Terminology Relating to Aluminum- andMagnesium-Alloy ProductsB 917/B 917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesD 3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test D
10、ata toDetermine Conformance with SpecificationsE34 Test Methods for ChemicalAnalysis ofAluminum andAluminum-Base AlloysE94 Guide for Radiographic ExaminationE 155 Reference Radiographs for Inspection of Aluminumand Magnesium CastingsE 165 Test Method for Liquid Penetrant ExaminationE 527 Practice fo
11、r Numbering Metals and Alloys in theUnified Numbering System (UNS)E 607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen AtmosphereE 716 Practices for Sampling Aluminum and AluminumAlloys for Spectrochemical AnalysisE 1251 Test Method fo
12、r Analysis of Aluminum and Alumi-num Alloys by Atomic Emission SpectrometryIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System2.3 ANSI Standard:4H35.1/H35.1M Alloy and Temper Designation Systems forAluminum2.4 Military Standards:5MIL-STD-129 Marking fo
13、r Shipment and Storage1This 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 approved June 1, 2008. Published July 2008. Originally approvedin 1936. Las
14、t previous edition approved in 2006 as B 108 06.2For 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 th
15、e standards Document Summary page onthe ASTM website.4Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,Arlington, VA 22209, http:/www.aluminum.org.5Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, ht
16、tp:/www.dodssp.daps.mil.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.MIL-STD-276 Impregnation of Porous Nonferrous MetalCastingsNAVSEA S9074-AR-GIB-010/278 Requirem
17、ents 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 Alloy Castings62.6 Federal Standard:5Fed Std. No. 123 Marking for Shipment (Civil Agencies)2.7 Other Standards:7CEN EN 1
18、4242 Aluminum and Aluminum Alloys, Chemi-cal Analysis, Inductively Coupled Plasma Optical Emis-sion Spectral Analysis3. Terminology3.1 DefinitionsRefer to Terminology B 881 for definitionsof product terms used in this specification.4. Ordering Information4.1 Orders for material under this specificat
19、ion 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 B 108 andfor metric application specify Specification B 108M. Do not
20、mix units.4.1.2 Alloy (see Section 7 and Table 1),4.1.3 Temper (see Section 10 and Table 2 Table 3),6Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.7Available from European Committee for Standardization (CEN), 36 rue deStassart
21、, 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 0.35 4.25.0 0.10 0.150.35 . 0.05 0.10 0.150.30 0
22、.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 5.56.5 1.0 3.04.0 0.50 0.10 . 0.35 1.0 0.25 . .
23、 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 A03540 remainder 8.69.4 0.20 1.62.0 0.10 0.400.
24、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 . 0.05 0.15A356.0 A13560 remainder 6.57.5 0
25、.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 . . . 0.100.20 . 0.05J0.15F357.0 remainder 6.57.5 0.10 0
26、.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 . . 0.35 0.25 . 0.05 0.15A444.0 A14440 remainder 6.57
27、.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 1.41.8 0.200.40 . 2.73.3 0.25 . 0.05 0.15707.0 A07
28、070 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 A08500 remainder 0.7 0.7 0.71.3 0.10 0.10 . 0.
29、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 permitted.BAnalysis shall be made for the elements
30、 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 unit in the last right-hand place of figures
31、used in expressing the specified limit in accordance with the rounding method ofPractice E29.DASTM alloy designations are recorded in Practice B 275.EOthers includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace
32、 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 aggregate of several Others elements exceeds
33、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 F332.0, 513.0 formerly A514.0, 711.0 formerly C712
34、.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.B 108/B 108M 0824.1.4 Applicable drawing or part number,4.1.5 The quantit
35、y in either pieces or pounds kilograms,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, Foot
36、note 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-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,
37、 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 (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 Whe
38、ther surface requirements will be 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 (see19.3), and4.2.12 Whether Practices B 660 applies an
39、d, 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 specified herein. Unles
40、sotherwise 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 dee
41、mednecessary 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
42、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 accordance with E 716 an
43、d analyzed in accordancewith E 607, E 1251, E34,orCEN EN 14242. If the producerhas determined the composition of the material during casting,they shall not be required to sample and analyze the finishedproduct.7.2 If it becomes necessary to analyze castings for conform-ance to chemical composition l
44、imits, 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 E 716, E 607,E 1251, E34,orCEN EN 14242 (ICP method).7.3 Other methods of analysis or in the case of a dis
45、pute 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. The maximumelapsed
46、 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 and yield strength s
47、hall 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, %Typical BrinellHa
48、rdnessD500-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
49、 28.0 .F90T5 30.0 .F100T6 35.0 .F105T7 31.0 .F90336.0GA03360 T551 31.0 .F105T65 40.0 .F125354.0 A03540 T61separately cast specimens 48.0 37.0 3.0B 108/B 108M 083TABLE 2 ContinuedAlloyTemperBTensileStrength, min,ksiYield StrengthC(0.2 % offset),min, ksiElongation in2 in. or 4 3Diameter, min, %Typical BrinellHardnessD500-kgf load,10-mm ballANSIEUNScasting, designated areaH47.0 36.0 3.0castings, no location designatedH43.0 33.0 2.0T62separately cast specimens 52.0 42.0 2.0castings,
