1、Designation: B 85 03Standard Specification forAluminum-Alloy Die Castings1This standard is issued under the fixed designation B 85; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A number in parentheses
2、indicates the year of last reapproval. A superscriptepsilon (e) 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 specification covers aluminum-alloy die castings ofall compositions.
3、Thirteen of the most commonly die cast alloycompositions are specified, designated as shown in Table 1.1.2 Alloy and temper designations are in accordance withANSI H35.1. The equivalent unified numbering system alloydesignations are in accordance with Practice E 527.1.3 For acceptance criteria for i
4、nclusion of new aluminumand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.4 UnitsThe values stated in inch-pound units are to beregarded as the standard. The values given in parentheses aremathematical conversions to SI units which are provided forinformation
5、 only and are not considered standard.1.5 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 re
6、quirements prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on dateof order acceptance form a part of this specification to theextent referenced herein:2.2 ASTM Standards:B 179 Specification for Aluminum Alloys in Ingot andMolten Forms for Castings from All Cast
7、ing Processes2B 275 Practice for Codification of Certain Nonferrous Met-als and Alloys, Cast and Wrought2B 557 Test Methods of Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products2B 660 Practices for Packaging/Packing of Aluminum andMagnesium Products2B 881 Terminology Relating to
8、Aluminum- andMagnesium-Alloy Products2D 3951 Practice for Commercial Packaging3E 8 Test Methods for Tension Testing of Metallic Materials4E 23 Test Methods for Notched Bar Impact Testing ofMetallic Materials4E 29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifi
9、cations5E 34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base Alloys6E 88 Practice for Sampling Nonferrous Metals and Alloysin Cast Form for Determination of Chemical Composition6E 505 Reference Radiographs for Inspection of Aluminumand Magnesium Die Castings7E 527 Practice for Number
10、ing Metals and Alloys (UNS)8E 607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point-to-Plane Tech-nique, Nitrogen Atmosphere6E 716 Practices for Sampling Aluminum and AluminumAlloys for Spectrochemical Analysis6E 1251 Test Method for Optical Emission SpectrometricAna
11、lysis of Aluminum and Aluminum Alloys by the ArgonAtmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-pacitor Discharge62.3 AMS Standard:AMS-STD-184 Identification Marking of Aluminum, Mag-nesium and Titanium92.4 ANSI Standard:H35.1 Alloy and Temper Designation Systems for Alumi-num102.5 NADCA P
12、roduct Specification Standards for Die Cast-ings:11Engineering and Design: Coordinate Dimensioning1This 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
13、 approved April 10, 2003. Published August 2003. Originallyapproved in 1931. Last previous edition approved in 2002 as B 85 02.2Annual Book of ASTM Standards, Vol 02.02.3Annual Book of ASTM Standards, Vol 15.09.4Annual Book of ASTM Standards, Vol 03.01.5Annual Book of ASTM Standards, Vol 14.02.6Annu
14、al Book of ASTM Standards, Vol 03.05.7Annual Book of ASTM Standards, Vol 03.03.8Annual Book of ASTM Standards, Vol 01.01.9Available from SAE AEROSPACE, 400 Commonwealth Dr., Warrendale, PA15096-0001.10Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY
15、 10036.11Available from North American Die Casting Association (NADCA), 9701 W.Higgins Rd., Suite 880, Rosemont, IL 600184721.1*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
16、States.S-4A-1-00 Linear Dimensions: Standard TolerancesS-4A-2-00 Parting Line: Standard TolerancesS-4A-3-00 Moving Die Components (MDC): Standard Tol-erancesS-4A-4-00 Draft Requirements: Standard TolerancesS-4A-5-00 Flatness Requirements: Standard TolerancesS-4A-6-00 Cored Holes for Cut Threads: Sta
17、ndard Toler-ancesS-4A-8-00 Cored Holes for Pipe Threads: Standard Toler-ancesP-4A-1-00 Linear Dimensions: Precision TolerancesP-4A-2-00 Parting Line: Precision TolerancesP-4A-3-00 Moving Die Components (MDC): Precision Tol-erancesP-4A-4-00 Draft Requirements: Precision TolerancesP-4A-5-00 Flatness R
18、equirements: Precision TolerancesP-4A-6-00 Cored Holes for Cut Threads: Precision Toler-ancesP-4A-7-00 Cored Holes for Formed Threads: PrecisionTolerancesS/P-4-9-00 Machining Stock Allowances (Standard andPrecision) Engineering and Design: Additional Specifica-tion GuidelinesG-6-1-00 Pressure Tightn
19、ess in Die Cast PartsG-6-2-00 Fillets, Ribs and Corners in Die cast Parts (1 of 2)G-6-3-00 Fillets, Ribs and Corners in Die cast Parts (2 of 2)G-6-4-00 Ejector Pins, Pin Marks and Pin FlashG-6-5-00 Casting Flash removalG-6-6-00 Surface Finish, As CastG-6-7-00 Die Cast Lettering and Ornamentation2.6
20、Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)122.7 Military Standard:MIL-STD-129 Marking for Shipment and Storage (MilitaryAgencies)123. Terminology3.1 DefinitionsRefer to Terminology B 881 for definitionsof product terms used in this specification.4. Ordering Information4
21、.1 Orders for material under this specification shall includethe following information:4.1.1 This specification designation (which includes thenumber, the year, and the revision letter, if applicable),4.1.2 The quantity in either pieces or pounds (kilograms),4.1.3 Part name and number,4.1.4 Alloy (s
22、ee Section 8 and Table 1), and4.1.5 Drawing of die casting, when required, giving allnecessary dimensions and showing latest revisions and allow-ances for linear dimensions (10.2), parting lines (10.3), movingdie components (10.4), draft (10.5), flatness (10.6), cored holethreads (10.7-10.9), and ma
23、chining stock (10.10). Location ofejector pin marks or parting lines shall be at the option of theproducer; unless specifically designated on the drawing.4.2 Additional tests, options and special inspection require-ments as provided below should be justified only on the basisof need. These shall be
24、specified in the contract or purchaseorder, as additional procedures and extended delivery time maybe involved.12Available from Standardization Documents Order Desk, Bldg. 4, Section D,700 Robbins Ave., Philadelphia, PA 19111-5098, Attn: NPODS.TABLE 1 Chemical RequirementsA,B,CDesignationDOthersEAA
25、No.(ANSI)(old)ASTMUNS Si Fe Cu Mn Mg Cr Ni Zn Ti Sn Each TotalFAluminum360.0 SG100B A03600 9.00-10.00 2.00 0.60 0.35 0.4-0.60 . . . 0.50 0.50 . . . 0.15 . . . 0.25 RemainderA360.0 SG100A A13600 9.00-10.00 1.30 0.60 0.35 0.40-0.60 . . . 0.50 0.50 . . . 0.15 . . . 0.25 Remainder380.0 SC84B A03800 7.50
26、-9.50 2.00 3.00-4.00 0.50 0.10 . . . 0.50 3.00 . . . 0.35 . . . 0.50 RemainderA380.0GSC84C A13800 7.50-9.50 1.30 3.00-4.00 0.50 0.10 . . . 0.50 3.00 . . . 0.35 . . . 0.50 Remainder383.0GSC102A A03830 9.50-11.50 1.30 2.00-3.00 0.50 0.10 . . . 0.30 3.00 . . . 0.15 0.50 Remainder384.0GSC114A A03840 10.
27、50-12.00 1.30 3.00-4.50 0.50 0.10 . . . 0.50 3.00 . . . 0.35 . . . 0.50 Remainder390.0 SC174A A03900 16.00-18.00 1.30 4.00-5.00 0.10 0.45-0.65 . . . . . . 0.10 0.20 . . . 0.10 0.20 RemainderB390.0 SC174B A23900 16.00-18.00 1.30 4.00-5.00 0.50 0.45-0.65 . . . 0.10 1.50 0.10 . . . 0.10 0.20 Remainder3
28、92.0 S19 A03920 18.00-20.00 1.50 0.40-0.80 0.20-0.60 0.80-1.20 . . . 0.50 0.50 0.20 0.30 0.15 0.50 Remainder413.0 S12B A04130 11.00-13.00 2.00 1.00 0.35 0.10 . . . 0.50 0.50 . . . 0.15 . . . 0.25 RemainderA413.0 S12A A14130 11.00-13.00 1.30 1.00 0.35 0.10 . . . 0.50 0.50 . . . 0.15 . . . 0.25 Remain
29、derC443.0 S5C A34430 4.50-6.00 2.00 0.60 0.35 0.10 . . . 0.50 0.50 . . . 0.15 . . . 0.25 Remainder518.0 G8A A05180 0.35 1.80 0.25 0.35 7.50-8.50 . . . 0.15 0.15 . . . 0.15 . . . 0.25 RemainderAAnalysis shall ordinarily be made only for the elements mentioned in this table. If, however, the presence
30、of other elements is suspected, or indicated in the courseof routine analysis, further analysis shall be made to determine that the total of these other elements are not present in excess of specified limits.BFor purposes of acceptance and rejection, the observed value or calculated value obtained f
31、rom analysis should be rounded off to the nearest unit in the last right-handplace of figures, used in expressing the specified limit, in accordance with the rounding procedure prescribed in Section 3 of Practice E 29.CLimits are in percent maximum unless shown otherwise.DAlloys 360.0, 380.0, 413.0,
32、 C443.0 and 518.0 are suitable for the production of die casting by either the hot-chamber or the cold-chamber process. Die castings ofalloys A360.0, A380.0, 383.0, 384.0 and A413.0 may be made only in cold-chamber machines. ASTM designations were established in accordance with Practice B 275.ANSI d
33、esignations were established in accordance with ANSI H35.1. UNS designations were established in accordance with Practice E 527.E”Others” includes listed elements for which no specific limit is shown as well as unlisted metallic elements. The producer may analyze samples for trace elements notspecif
34、ied in the registration or specification. However, such analysis is not required and may not cover all metallic “other” elements. Should any analysis by the produceror the purchaser establish that the aggregate of several “others” elements exceeds the limit of the “Total” the material shall be consi
35、dered non-conforming.FThe sum of those “others” metallic elements 0.010 percent or more, each expressed to the second decimal before determining the sum.GWith respect to mechanical properties, alloys A380.0, 383.0 and 384.0 are substantially interchangeable.B850324.2.1 Whether chemical analysis repo
36、rts are required (8.1.1and Table 1),4.2.2 Whether additional quality assurance requirements arerequired (7.1),4.2.3 Whether special proof tests or mechanical propertytests are required (Section 9),4.2.4 Whether there are additional general quality require-ments for internal soundness (11.2), pressur
37、e tightness (11.3),fillets, ribs and corners (11.4), ejector pins, pin marks, pin flashand flash removal (11.5), casting flash removal (11.6), surfacefinish (11.7), die cast lettering and ornamentation (11.8) orworkmanship (11.10),4.2.5 Whether source inspection is required (Section 12),4.2.6 Whethe
38、r certification is required (Section 14),4.2.7 Marking for identification (Section 15), and4.2.8 Whether the material shall be packaged, or marked, orboth, in accordance with MIL-STD-129, Fed. Std. No. 123 orPractice D 3951 (16.2), and Practices B 660 (16.3).5. Materials5.1 Unless otherwise specifie
39、d, only aluminum alloy con-forming to the requirements of Specification B 179 or produc-ers foundry scrap (identified as being made from alloyconforming to Specification B 179) shall be used in theremelting furnace from which molten metal is taken forpouring directly into castings. Additions of smal
40、l amounts ofmodifiers and grain refining elements or alloys are permitted.5.1.1 Pure materials, recycled materials, and master alloysand material not conforming to Specification B 179 may beused to make alloys conforming to this specification, providedchemical analysis can be taken and adjusted to c
41、onform toTable 1 prior to pouring any castings.6. Manufacture6.1 The producer of the die castings shall supply castingsthat can be laid out and machined to the final dimensions(within the permissible variations specified on the blueprints ordrawings), except when the die is furnished by the purchase
42、r.7. Quality Assurance7.1 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-ments specified herein. Except as otherwise specified in thecontract or order, the producer or suppl
43、ier 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 right to performany of the inspections and tests set forth in this specification.Quality assurance stand
44、ards shall be agreed upon between theproducer or supplier and purchaser at the time a contract ororder is placed.7.2 Lot DefinitionAn inspection lot shall be defined asfollows:7.2.1 An inspection lot shall consist of the production fromeach die or compound die on each machine for each 24 hduring the
45、 first week of normal operation and the productionfor each 48 h thereafter of normal operation. Any significantchange in the machine, composition, die or continuity ofoperation shall be considered as the start of a new lot. Diecastings inspected by this method shall be so marked orhandled during the
46、 finishing operations as not to lose theiridentity.7.2.2 Each die casting of a randomly selected sample shallbe examined to determine conformance to the requirementswith respect to general quality, dimensions, and identificationmarking. The producer or supplier may use a system ofstatistical quality
47、 control for such examinations.7.3 All testing shall be performed in accordance to appli-cable ASTM test methods.8. Chemical Composition8.1 LimitsThe diecastings shall conform to the require-ments as to chemical composition prescribed in Table 1.Conformance shall be determined by the producer by ana
48、lyzingsamples taken at the time castings are made. If the producer hasdetermined the chemical composition of the metal during thecourse of manufacture, he shall not be required to sample andanalyze the finished product.8.1.1 When a chemical analysis is required with a shipment,it shall be called for
49、 in the contract or purchase order.8.1.2 If the producers or suppliers method of compositioncontrol is acceptable, sampling for chemical analysis may bewaived at the discretion of the purchaser.8.2 Number of SamplesWhen required, samples for deter-mination of chemical composition shall be taken to representthe following:8.2.1 A sample shall be taken from each of two representa-tive castings selected from each defined lot (see 7.2.1).8.3 Methods of SamplingSamples from die castings fordetermination of chemical composition shall be taken inaccordance with one of the following m
