1、Designation: B93/B93M 09Standard Specification forMagnesium Alloys in Ingot Form for Sand Castings,Permanent Mold Castings, and Die Castings1This standard is issued under the fixed designation B93/B93M; the number immediately following the designation indicates the year oforiginal adoption or, in th
2、e case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript 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.NoteTable 1 was c
3、orrected editorially and the year date changed on Dec. 7, 2009.1. Scope1.1 This specification covers magnesium alloys in ingotform for remelting for the manufacture of sand castings,permanent mold castings, investment castings, and die cast-ings.NOTE 1Supplementary information pertaining to the allo
4、ys coveredby this specification when used in the form of castings is given inSpecifications B80, B94, B199 and B403.1.2 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. The values stated ineach system are not exact equivalents; therefore, each system
5、shall be used independently of the other.1.3 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
6、 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 referenced herein:2.2 ASTM Standards:2B80 Specification for Magnesium-Alloy Sand CastingsB94 Specification for Magnesium-Alloy
7、 Die CastingsB199 Specification for Magnesium-Alloy Permanent MoldCastingsB403 Specification for Magnesium-Alloy Investment Cast-ingsB951 Practice for Codification of Unalloyed Magnesiumand Magnesium-Alloys, Cast and WroughtE29 Practice for Using Significant Digits in Test Data toDetermine Conforman
8、ce with SpecificationsE35 Test Methods for Chemical Analysis of Magnesiumand Magnesium Alloys3E88 Practice for Sampling Nonferrous Metals and Alloys inCast Form for Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System (UNS)3. Ordering Info
9、rmation3.1 Orders for ingot to this specification shall include thefollowing information:3.1.1 Quantity in pounds (kilograms)3.1.2 Alloy (Section 4 and Table 1 or Table 2), and3.1.3 Form: as agreed upon between the purchaser andseller. Some forms in commercial use are:FormApproximate Size Length by
10、Widthby Height, in. (mm)ApproximateWeight,lb (kg)Five-segment 23 by 234 by 134 (583 by 70 by 44) 5 (2.3)Four-segment 28 by 412 by 4 (711 by 114 by 102) 20 (9.1)Self-Palletizing 2612 by 658 by 258 (672 by 168 by 67) 25 (11.3)3.1.4 Inspection required at the manufacturers works (see8.1).3.1.5 For inch
11、-pound orders specify B93; for metric ordersspecify B93M. Do not mix units.4. Chemical Composition4.1 The ingots shall conform to the chemical compositionlimits prescribed in Table 1 for sand cast alloys and permanentmold-cast alloys and in Table 2 for die-cast alloys. Conform-ance shall be determin
12、ed by the manufacturer by analyzingsamples taken at the time the ingots are poured or samplestaken from the ingots. If the manufacturer has determined the1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07
13、.04 onMagnesium Alloy Cast and Wrought Products.Current edition approved Dec. 7, 2009. Published February 2010. Originallyapproved in 1934. Last previous edition approved in 2006 as B93/B93M 06. DOI:10.1520/B0093_B0093M-07.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orconta
14、ct ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Har
15、bor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 1 Chemical Requirements for Alloy Ingot for Remelt to Sand, Permanent Mold and Investment CastingsComposition %AlloyAASTMUNSMag-nesiumAlumi-numCopper,maxGadol-iniumIron,maxLithium,maxManga-neseNeody-miumNickel,maxRareEarth
16、sSilicon,maxSilver Yttrium ZincZir-coniumOtherseach,maxBTotalOthers,maxBAM100A M10101 remainder 9.410.6 0.08 . . . 0.130.35 . 0.010 . 0.20 . . 0.2 max . . 0.30AZ63A M11631 remainder 5.56.5 0.20 . . . 0.150.35 . 0.010 . 0.20 . . 2.73.3 . . 0.30AZ81A M11811 remainder 7.28.0 0.08 . . . 0.150.35 . 0.010
17、 . 0.20 . . 0.50.9 . . 0.30AZ91C M11915 remainder 8.39.2 0.08 . . . 0.150.35 . 0.010 . 0.20 . . 0.450.9 . . 0.30AZ91E M11918 remainder 8.39.2 0.015 . 0.005 . 0.170.50 . 0.0010 . 0.20 . . 0.450.9 . 0.01 0.30AZ92A M11921 remainder 8.59.5 0.20 . . . 0.130.35 . 0.010 . 0.20 . . 1.72.3 . . 0.30EQ21A M183
18、30 remainder . 0.050.10 . . . . . 0.01 1.53.0C0.01 1.31.7 . . 0.31.0 . 0.30EV31ADM12311 remainder . 0.01 1.01.7 0.010 . . 2.63.1 0.0020 0.4E. 0.05 max . 0.200.50 0.31.0 0.01 .EZ33A M12331 remainder . 0.03 . . . . . 0.010 2.63.9F0.01 . . 2.03.0 0.31.0 . 0.30K1A M18011 remainder . 0.03 . . . . . 0.010
19、 . 0.01 . . . 0.31.0 . 0.30QE22A M18221 remainder . 0.03 . . . 0.15 max . 0.010 1.92.4C0.01 2.03.0 . 0.2 max 0.31.0 . 0.30WE43A M18431 remainder . 0.03 . 0.18 0.15 max 2.02.5 0.005 1.9G0.01 . 3.74.3 0.20 max 0.31.0 . 0.30WE43B M18433 remainder . 0.01 . . 0.18 0.03 max 2.02.5 0.004 1.9G. .H3.74.3 .H0
20、.31.0 0.01 .WE54A M18410 remainder . 0.03 . . 0.20 0.15 max 1.52.0 0.005 2.0G0.01 . 4.755.5 0.20 max 0.31.0 . 0.30ZC63A M16331 remainder . 2.43.00 . . . 0.250.75 . 0.001 . 0.20 . . 5.56.5 . . 0.30ZE41A M16411 remainder . 0.03 . . . 0.15 max . 0.010 1.01.75F0.01 . . 3.74.8 0.31.0 . 0.30ZK51A M16511 r
21、emainder . 0.03 . . . . . 0.010 . 0.01 . . 3.85.3 0.31.0 . 0.30ZK61A M16611 remainder . 0.03 . . . . . 0.010 . 0.01 . . 5.76.3 0.31.0 . 0.30AThese alloy designations were established in accordance with Practice B951. UNS designations were established in accordance with Practice E527.BIncludes listed
22、 elements for which no specific limit is shown.CRare earth elements are in the form of Didymium, not less than 70 % Neodymium balance substantially Praseodymium.DAlloy EV31A is a patented composition, suitable for elevated temperature applications. Interested parties are invited to submit informatio
23、n regarding the identification of alternatives to these compositions to ASTMInternational. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. ASTM International takes no position respecting the validity of any patent rightsasse
24、rted in connection with any item mentioned in this specification. Users of this specification are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights,are entirely their own responsibility.EOther Rare Earths may also be present t
25、o a total maximum of 0.4 %. These Rare Earths shall principally be Cerium, Lanthanum, and Praseodymium.FTotal Rare Earths (TRE) are principally a mixture of Cerium, Lanthanum, Neodymium, and Praseodymium. The Cerium content should not be less than 45% of TRE.GOther Rare Earths shall be principally h
26、eavy rare earths, such as, Gadolinium, Dysprosium, Erbium, and Ytterbium. Other Rare Earths are derived from the Yttrium, typically 80 %, and 20 % heavy rare earths.HZinc + Silver shall be 0.15 % max.Editorially corrected.B93/B93M092chemical composition of the material during manufacture, heshall no
27、t be required to sample and analyze the ingots.4.2 The alloys shall conform to the chemical compositionrequirements prescribed in Table 1 and Table 2 (Note 2 andNote 3).NOTE 2Analysis shall regularly be made only for the elementsspecifically mentioned in the tables. If, however, the presence of othe
28、relements is suspected or indicated in the course of routine analysis, furtheranalysis shall be made to determine that the total of these other elementsis not in excess of the limits specified in the last column of the table.NOTE 3The following applies to all specified limits in the tables: Forpurpo
29、ses of acceptance and rejection, an observed value or a calculatedvalue obtained from analysis shall be rounded off in accordance with therounding off method of Practice E29 to the nearest unit in the lastright-hand place of figures used in expressing the specified limit.5. Workmanship, Finish and A
30、ppearance5.1 The ingots shall be uniform in quality and shall becommercially free of slag or other foreign material.6. Sampling for Chemical Analysis6.1 Sufficient samples shall be taken by the manufacturer toensure conformance to the chemical composition requirementof the alloy.6.1.1 Samples may be
31、 taken from the molten metal when theingot is poured or from the ingots. Samples shall be represen-tative of the material.6.2 In case of dispute, the sampling for chemical analysisshall be according to the requirements of Practice E88.6.2.1 If the shipment is in less than carload lots and also inthe
32、 case of magnesium-zirconium alloys, one ingot sectionshall be taken for sampling for each 2200 lb (1000 kg) orfraction thereof.7. Methods of Chemical Analysis7.1 Any suitable method of chemical analysis may be used.In case of dispute, the analysis shall be made by methods givenin Test Methods E35 o
33、r any other standard methods of analysisapproved by ASTM unless some other method is agreed uponbetween the purchaser and vendor.8. Inspection8.1 If the purchaser desires that inspection be made at themanufacturers works where the material is made, it shall be sostated in the contract or purchase or
34、der.8.1.1 If the purchaser elects to have the inspection made atthe manufacturers works, the manufacturer shall afford theinspector representing the purchaser all reasonable facilities tosatisfy him that the material is being furnished in accordancewith this specification.8.1.2 All tests and inspect
35、ion shall be so conducted as not tointerfere unnecessarily with the operation of the works.9. Rejection9.1 Material that does not conform to the requirements ofthis specification may be rejected and, if rejected, the sellersTABLE 2 Chemical Requirements for Alloys Used for Die CastingsAAlloy Composi
36、tion, %Designa-tionBUNSMagnesiumAlumi-numBerylliumCopper,maxIron,maxManga-neseNickel,maxRareEarthSilicon Strontium ZincOtherMetallicimpuri-ties, maxeachCOtherImpuri-ties,maxAS41A M10411remainder 3.74.8 . 0.04 . 0.220.48 0.01 . 0.601.4 . 0.10 max . 0.30AS41B M10413remainder 3.74.8 0.0005-0.00150.015
37、0.0035 0.350.6 0.001 . 0.601.4 . 0.10 max 0.01 .AM50A M10501remainder 4.55.3 0.0005-0.00150.008 0.004 0.280.50 0.001 . 0.08 max . 0.20 max 0.01 .AM60A M10601remainder 5.66.4 . 0.25 . 0.150.50 0.01 . 0.20 max . 0.20 max . 0.30AM60B M10603remainder 5.66.4 0.0005-0.00150.008 0.004 0.260.50 0.001 . 0.08
38、 max . 0.20 max 0.01 .AZ91A M11911remainder 8.59.5 . 0.08 . 0.150.40 0.01 . 0.20 max . 0.450.9 . 0.30AZ91B M11913remainder 8.59.5 . 0.25 . 0.150.40 0.01 . 0.20 max . 0.450.9 . 0.30AZ91D M11917remainder 8.59.5 0.0005-0.00150.025 0.004 0.170.40 0.001 . 0.08 max . 0.450.9 0.01 .AJ52ADM17521remainder 4.
39、65.5 0.0005-0.00150.008 0.004 0.260.5 0.001 . 0.08 max 1.82.3 0.20 max 0.01 .AJ62ADM17621remainder 5.66.6 0.0005-0.00150.008 0.004 0.260.5 0.001 . 0.08 2.12.8 0.20 max 0.01 .AS21A M10211remainder 1.92.5 0.0005-0.00150.008 0.004 0.20.6 0.001 . 0.71.2 . 0.20 max 0.01 .AS21BDM10213remainder 1.92.5 0.00
40、05-0.00150.008 0.0035 0.050.15 0.001 0.060.25 0.71.2 . 0.25 max 0.01 .AThe following applies to all specified limits in this table; for purposes of acceptance and rejection, an observed value or a calculated value obtained from analysis shouldbe rounded off to the nearest unit in the last right-hand
41、 place of figures used in expressing the specified limit in accordance with the rounding-off procedure prescribedin Practice E29.BASTM alloy designations were established in accordance with Practice B951. UNS Numbers were established in accordance with Practice E527.CIncludes listed elements for whi
42、ch no specific limit is shown.DAlloys AJ52A, AJ62A, and AS21B are patented compositions for elevated temperature applications. Interested parties are invited to submit information regarding theidentification of alternatives to these compositions to ASTM International. Your comments will receive care
43、ful consideration at a meeting of the responsible technicalcommittee, which you may attend. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in thisspecification. Users of this specification are expressly advised that de
44、termination of the validity of any such patent rights, and the risk of infringement of such rights, areentirely their own responsibility.B93/B93M 093responsibility shall be limited to replacing the rejected mate-rial. The full weight of the rejected material shall be returnedto the manufacturer.10.
45、Product Marking10.1 Identification shall be by stamping with the alloydesignation in Table 1 and Table 2.11. Packaging and Package Marking11.1 Ingots shall be packaged in such a manner as to preventdamage in ordinary handling and transportation. The type ofpacking and gross weight of individual cont
46、ainers or bundlesshall be left to the discretion of the supplier unless otherwiseagreed upon. Packaging methods shall be so selected as topermit maximum utility of equipment in unloading and subse-quent handling. Each container or bundle shall contain onlyone size and alloy when packaged for shipmen
47、t unless other-wise agreed upon.11.2 Each package shall be marked with the purchase ordernumber, quantity, specification number, alloy, gross or netweights, and the name of the manufacturer.11.2.1 Each package shall be color-coded on two oppositecorners, visible from four sides, with the colors list
48、ed in Table3 when stated as a purchase order requirement.11.3 Packages shall be such as to ensure acceptance bycommon or other carriers for safe transportation at the lowestrate to the point of delivery.11.4 For those alloys listed, the various national regulationsconcerning the transportation of th
49、ese alloys will be compliedwith in regard to hazardous materials.12. Keywords12.1 composition; die casting; high pressure die cast alloy;magnesium; permanent mold casting; sand castingASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are
