1、Designation: B 93/B 93M 07Standard Specification forMagnesium Alloys in Ingot Form for Sand Castings,Permanent Mold Castings, and Die Castings1This standard is issued under the fixed designation B 93/B 93M; the number immediately following the designation indicates the yearof original adoption or, i
2、n the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (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
3、 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 alloys coveredby this specification when used in the form of castings is given
4、 inSpecifications B 80, B 94, B 199 and B 403.1.2 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 systemshall be used independently of the other.1.3 This standard does not pu
5、rport 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 use.2. Referenced Documents2.1 The following doc
6、uments 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 Die CastingsB 199 Specification for Magnesium-Alloy Permanent MoldCas
7、tingsB 403 Specification for Magnesium-Alloy Investment Cast-ingsB 951 Practice for Codification of Unalloyed Magnesiumand Magnesium-Alloys, Cast and WroughtE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE35 Test Methods for Chemical Analysis of Mag
8、nesiumand Magnesium AlloysE88 Practice for Sampling Nonferrous Metals and Alloysin Cast Form for Determination of Chemical CompositionE 527 Practice for Numbering Metals and Alloys (UNS)3. Ordering Information3.1 Orders for ingot to this specification shall include thefollowing information:3.1.1 Qua
9、ntity 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 Widthby Height, in. (mm)ApproximateWeight,lb (kg)Five-segment 23 by 234 by 134 (583 by 70 by 44) 5
10、 (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-pound orders specify B93; for metric ordersspecify B93M. Do not mix units.4. Chemical Composition
11、4.1 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 determined by the manufacturer by analyzingsamples taken at the time the ingots are poured or samplestaken
12、 from the ingots. If the manufacturer has determined thechemical composition of the material during manufacture, heshall not 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).1This sp
13、ecification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.04 onMagnesium Alloy Cast and Wrought Products.Current edition approved June 1, 2007. Published June 2007. Originallyapproved in 1934. Last previous edition appr
14、oved in 2006 as B 93/B 93M 06.2For 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.1*A Summary of Changes section
15、appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.NOTE 2Analysis shall regularly be made only for the elementsspecifically mentioned in the tables. If, however, the presence of otherelements is suspec
16、ted 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: Forpurposes of acceptance a
17、nd 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 Appearance5.1 The in
18、gots 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 taken from the mol
19、ten 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 case of magnesium-
20、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 E35or any other standard
21、 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 order.8.1.1 If the pur
22、chaser 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 inspection shall be so cond
23、ucted 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 sellersresponsibility shall be limited to replacing the rejected mate-rial. The full weight of the reje
24、cted material shall be returnedto the manufacturer.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,maxRareEarthsSilicon,maxSilver Y
25、ttrium ZincZir-coniumOtherseachmaxBTotalOthers,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 . 0.20 . . 0.50.9 .
26、. 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 M18330 remainder . 0.050.
27、10 . . . . . 0.01 1.53.0C0.01 1.31.7 . . 0.31.0 . 0.30EV31ADM12311 remainder. 0.01 max 1.01.7 0.010 . . 2.63.1 0.0020 0.4E.0.05max. 0.200.50 03.1.0 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 . 0.01 . . . 0.31.0
28、. 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 2.4-4.4G0.01 . 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 2.44.4G. .H3.74.3 .H0.31.0 0.01 .WE
29、54A M18410 remainder . 0.03 . . 0.20 0.15 max 1.52.0 0.005 1.54.0G0.01 . 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 . 0.30ZE63A M16631 remainder .
30、0.03 . . . . . 0.010 2.03.0 0.01 . . 5.56.0 0.31.0 . 0.30ZK51A M16511 remainder . 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 B 951. UNS designa
31、tions were established in accordance with Practice E 527.BIncludes listed 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 temp
32、erature applications. Interested parties are invited to submit information regarding the identificationof alternatives to these compositions to ASTM International. Your comments will receive careful consideration at a meeting of the responsible technical committee, whichyou may attend.ASTM Internati
33、onal takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this specification. Usersof this specification are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are en
34、tirely their ownresponsibility.EOther Rare Earths may also be present to 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 shoul
35、d not be less than 45% of TRE.GOther Rare Earths shall be principally heavy 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.B 93/B 93M 07210. Product Mark
36、ing10.1 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 containers or bu
37、ndlesshall 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 shipment unless oth
38、er-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 listed in Table3
39、 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 these alloys w
40、ill be compliedwith in regard to hazardous materials.12. Keywords12.1 composition; die casting; high pressure die cast alloy;magnesium; permanent mold casting; sand castingTABLE 2 Chemical Requirements for Alloys Used for Die CastingsAAlloy Composition, %Designa-tionBUNSMagnesiumAlumi-numBerylliumCo
41、pper,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 0.0035 0.350.6 0.001 . 0.601.4 . 0.10 max 0.01 .AM50
42、A 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 max . 0.20 max 0.01 .AZ91A M11911remainder 8.59.5 .
43、 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 4.65.5 0.0005-0.00150.008 0.004 0.260.5 0.001 . 0.08 m
44、ax 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 0.0005-0.00150.008 0.0035 0.050.15 0.001 0.060.25 0.71.2
45、 . 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 place of figures used in expressing the specified l
46、imit in accordance with the rounding-off procedure prescribedin Practice E29.BASTM alloy designations were established in accordance with Practice B 951. UNS Numbers were established in accordance with Practice E 527.CIncludes listed elements for which no specific limit is shown.DAlloys AJ52A, AJ62A
47、, 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 careful consideration at a meeting of the responsible
48、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 determination of the validity of any such patent rig
49、hts, and the risk of infringement of such rights, areentirely their own responsibility.TABLE 3 Color CodeAlloy Color CodeAJ52A Black and WhiteAJ62A Black and YellowAM50A BlackAM60A Green and WhiteAM60B WhiteAS21A Blue and GreenAS21B Blue and WhiteAS41A RedAS41B Red and WhiteAZ91B Blue and YellowAZ91C BrownAZ91D YellowAZ91E Brown and YellowB 93/B 93M 073SUMMARY OF CHANGESCommittee B07 has identified the location of selected changes to this standard since the last issue(B93/B93M 0
