1、Designation:B9413Standard Specification forMagnesium-Alloy Die Castings1This standard is issued under the fixed designation B94;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicate
2、s the year of last reapproval.Asuperscriptepsilon()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 magnesium-alloy die castings.Current alloy compositions are sp
3、ecified under the designationsshown in Table 1.21.2 The values stated in inch-pound units are standard.TheSI values in parentheses are provided for information only.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the u
4、ser 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 dateof order acceptance form a part of this specification to theextent refere
5、nced herein:2.2 ASTM Standards:3B93/B93M Specification for Magnesium Alloys in IngotForm for Sand Castings,Permanent Mold Castings,andDie CastingsB557 Test Methods for Tension Testing Wrought and CastAluminum-and Magnesium-Alloy ProductsB660 Practices for Packaging/Packing of Aluminum andMagnesium P
6、roductsB951 Practice for Codification of Unalloyed Magnesium andMagnesium-Alloys,Cast and WroughtB953 Practice for Sampling Magnesium and MagnesiumAlloys for Spectrochemical AnalysisB954 Test Method for Analysis of Magnesium and Magne-sium Alloys by Atomic Emission SpectrometryE23 Test Methods for N
7、otched Bar Impact Testing of Me-tallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE88 Practice for Sampling Nonferrous Metals and Alloys inCast Form for Determination of Chemical CompositionE505 Reference Radiographs for Inspection of A
8、luminumand Magnesium Die CastingsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.3 American Die Casting Institute:3“E”Series Product Standards2.4 Federal Standards:4FED-STD-123 Marking for Shipment(Civil Agencies)SAE AMS-STD-184 Identification Marking of Aluminum,M
9、agnesium and Titanium2.5 Military Standard:4MIL-STD-129 Marking for Shipment and Storage3.Terminology3.1 Definitions:3.1.1 die castinga metal object produced by the introduc-tion of molten metal under substantial pressure into a metal dieand characterized by a high degree of fidelity to the die cavi
10、ty.4.Ordering Information4.1 Orders for die castings shall include the following basicinformation:4.1.1 This specification number and date,4.1.2 Quantity and delivery schedule,as required,4.1.3 Part name and number,4.1.4 Alloy(Table 1),and4.1.5 Drawing of die casting,when required,giving allnecessar
11、y dimensions and showing latest revisions and allow-ances for machining,if any.Location of ejector pin marks orparting lines shall be at the option of the producer,unlessspecifically designated on the drawing.1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Allo
12、ys and is the direct responsibility of Subcommittee B07.04 onMagnesium Alloy Cast and Wrought Products.Current edition approved May 1,2013.Published June 2013.Originallyapproved in 1934.Last previous edition approved in 2007 as B94 07.DOI:10.1520/B0094-13.2SAE specifications No.501 and 501A conform
13、to the requirements for AlloyAZ91A and AZ91B respectively.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 website.4Availab
14、le from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/www.dodssp.daps.mil.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.Unite
15、d States1 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 Chemical analysis(7.1.1),4.2.2
16、 Quality assurance(Section 6),4.2.3 Special proof tests or mechanical properties(Section8),4.2.4 General quality options for internal soundness or forfinish(Section 10),4.2.5 Source inspection(Section 11),4.2.6 Certification(Section 12),4.2.7 Marking for identification(Section 14),and4.2.8 Special packaging(Section 15).5.Materials5.1 The magnesium alloys used for the manufacture of diecastings shall be such that the die castings produced willconform to the chemical composition requirements of th
