1、Designation: B 85/B 85M 08Standard Specification forAluminum-Alloy Die Castings1This standard is issued under the fixed designation B 85/B 85M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in
2、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 specification covers aluminum-alloy die castings ofall com
3、positions. Thirteen of the most commonly die cast alloycompositions are specified, designated as shown in Table 1.1.2 This specification is not intended for aluminum-alloydie castings used in aerospace applications.1.3 Alloy and temper designations are in accordance withANSI H35.1/H35.1(M). The equi
4、valent unified numberingsystem alloy designations are in 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 pro
5、perties 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 shall be used independently of the other.Combining
6、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 appro-priate safety and health practices and determi
7、ne the applica-bility of regulatory requirements 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:2B 179 Specification for Aluminum Alloys in Ingot and
8、Molten Forms for Castings from All Casting ProcessesB 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-
9、 and Magnesium-Alloy Products (Metric)B 660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB 881 Terminology Relating to Aluminum- andMagnesium-Alloy ProductsD 3951 Practice for Commercial PackagingE8 Test Methods for Tension Testing of Metallic MaterialsE8M Test Methods for Tensio
10、n Testing of Metallic Mate-rials Metric3E23 Test Methods for Notched Bar Impact Testing ofMetallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for ChemicalAnalysis ofAluminum andAluminum-Base AlloysE 505 Reference Radiog
11、raphs for Inspection of Aluminumand Magnesium Die CastingsE 527 Practice for 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 Al
12、uminum and AluminumAlloys for Spectrochemical AnalysisE 1251 Test Method for 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 AMS Standard:1This specification is under the j
13、urisdiction 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 1, 2008. Published May 2008. Originallyapproved in 1931. Last previous edition approved in 2003 as B 85 03.2For refere
14、nced 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 website.3Withdrawn.1*A Summary of Changes section appears at the end of this sta
15、ndard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.AMS-STD-184 Identification Marking of Aluminum, Mag-nesium and Titanium42.4 ANSI Standard:H35.1/H35.1(M)-2006 American National Standard Alloyand Temper Designation Systems for Alu
16、minum52.5 NADCA Product Specification Standards for Die Cast-ings:6Engineering and Design: Coordinate DimensioningS-4A-1-06 Linear Dimensions: Standard TolerancesS-4A-2-06 Parting Line: Standard TolerancesS-4A-3-06 Moving Die Components (MDC): Standard Tol-erancesS-4A-4-06 Draft Requirements: Standa
17、rd TolerancesS-4A-5-06 Flatness Requirements: Standard TolerancesS-4A-6-06 Cored Holes for Cut Threads: Standard Toler-ancesS-4A-8-06 Cored Holes for Pipe Threads: Standard Toler-ancesP-4A-1-06 Linear Dimensions: Precision TolerancesP-4A-2-06 Parting Line: Precision TolerancesP-4A-3-06 Moving Die Co
18、mponents (MDC): Precision Tol-erancesP-4A-4-06 Draft Requirements: Precision TolerancesP-4A-5-06 Flatness Requirements: Precision TolerancesP-4A-6-06 Cored Holes for Cut Threads: Precision Toler-ancesP-4A-7-06 Cored Holes for Formed Threads: PrecisionTolerancesS/P-4-9-06 Machining Stock Allowances (
19、Standard andPrecision) Engineering and Design: Additional Specifica-tion GuidelinesG-6-1-06 Pressure Tightness in Die Cast PartsG-6-2-06 Fillets, Ribs and Corners in Die cast Parts (1 of 2)G-6-3-06 Fillets, Ribs and Corners in Die cast Parts (2 of 2)G-6-4-06 Ejector Pins, Pin Marks and Pin FlashG-6-
20、5-06 Casting Flash removalG-6-6-06 Surface Finish, As CastG-6-7-06 Die Cast Lettering and Ornamentation2.6 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civil Agencies)72.7 Military Standard:MIL-STD-129 Marking for Shipment and Storage (MilitaryAgencies)72.8 Other Standards:8EN 14242 Alum
21、inum and Aluminum Alloys ChemicalAnalysis inductively Coupled plasms Optical EmissionSpectral Analysis3. Terminology3.1 DefinitionsRefer to Terminology B 881 for definitionsof product terms used in this specification.4Available from SAE AEROSPACE, 400 Commonwealth Dr., Warrendale, PA15096-0001, http
22、:/aerospace.sae.org.5Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.6Available from North American Die Casting Association (NADCA), 241Holbrook Dr Wheeling, Illinois 60090-5809, http:/www.diecasting.org/7Available from St
23、andardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.8Available from European Committee for Standardization (CEN), 36 rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.TABLE 1 Chemical RequirementsA,B,CDe
24、signationDOthersEAA 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
25、.0 SC84B A03800 7.50-9.50 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
26、.0GSC114A A03840 10.50-12.00 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 . . .
27、0.10 0.20 Remainder392.0 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.
28、15 . . . 0.25 RemainderC443.0 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, ho
29、wever, the presence 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 calcula
30、ted value obtained from 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 E29.CLimits are in percent maximum unless shown otherwise.DAlloys 3
31、60.0, 380.0, 413.0, 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 Pr
32、actice B 275.ANSI designations were established in accordance with ANSI H35.1/H35.1 (M). 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
33、 for trace elements notspecified 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
34、” the material shall be considered 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.B 85/B 85M 08
35、24. Ordering Information4.1 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),NOTE 1For inch-pound application, specify Specification B 85 andfor metric
36、 application specify Specification B 85M. Do not mix units.4.1.2 The quantity in either pieces or pounds (kilograms),4.1.3 Part name and number,4.1.4 Alloy (see Section 8 and Table 1), and4.1.5 Drawing of die casting, when required, giving allnecessary dimensions and showing latest revisions and all
37、ow-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 machining stock (10.10). Location ofejector pin marks or parting lines shall be at the option of theproducer; unless specifically designated on
38、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 specified in the contract or purchaseorder, as additional procedures and extended delivery time maybe involved.4.2.1 Whether chemical analysis
39、 reports are required (8.5and 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), pres
40、sure 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 Whet
41、her 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 specif
42、ied, 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 sm
43、all 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
44、 conform toTable 1 prior to pouring any castings.6. Manufacture6.1 The responsibility of furnishing die castings that can belaid out and machined to the final dimensions within thepermissible variations specified, as shown on the blueprints ordrawings, shall rest with the producer, except when the d
45、ie isfurnished by the purchaser.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 o
46、r order, the producer or supplier 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 specifi
47、cation.Quality assurance standards 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 m
48、achine for each 24 hduring the 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
49、so marked orhandled during the 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 control for such examinations.7.3 All testing shall be performed in accordance to appli-cable ASTM test methods.8. Chemical Composition8.1 The product shall conform to the requirements as tochemical composition prescribed in Table 1. Conform
