1、Designation: B275 05 (Reapproved 2013)Standard Practice forCodification of Certain Nonferrous Metals and Alloys, Castand Wrought1This standard is issued under the fixed designation B275; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisi
2、on, 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.1. Scope*1.1 This practice covers
3、 a system originally adopted fordesignating light metals and alloys, cast and wrought, and laterextended to certain heavier, base-metal die-casting alloys.Those designations, which are currently being used in specifi-cations under the jurisdiction of Committees B02 on Nonfer-rous Metals and Alloys a
4、nd B07 on Light Metals and Alloys,are listed in Table X2.1.1.1.1 The alloy designations now being used in CommitteeB07 specifications for aluminum and aluminum-alloy wroughtand cast products conform to ANSI H35.1. Alloys formerlycodified by this practice and the corresponding ANSI designa-tions are
5、shown in Tables X3.1 and X3.2.1.2 This practice also provides a system for designatingmagnesium alloys that have been used commercially since1952, and thus is intended to be the registration source for newmagnesium alloys. A record of designations along with theestablished compositions is given in T
6、able X4.1.1.3 The equivalent Unified Numbering System (UNS) alloydesignations shown in the appendixes are in accordance withPractice E527.2. Referenced Documents2.1 The following documents form a part of this practice tothe extent referenced herein:2.2 ASTM Standards:2B37 Specification for Aluminum
7、for Use in Iron and SteelManufactureB80 Specification for Magnesium-Alloy Sand CastingsB86 Specification for Zinc and Zinc-Aluminum (ZA) AlloyFoundry and Die CastingsB93/B93M Specification for Magnesium Alloys in IngotForm for Sand Castings, Permanent Mold Castings, andDie CastingsB94 Specification
8、for Magnesium-Alloy Die CastingsB102 Specification for Lead- and Tin-Alloy Die Castings(Withdrawn 2011)3B240 Specification for Zinc and Zinc-Aluminum (ZA) Al-loys in Ingot Form for Foundry and Die CastingsB327 Specification for Master Alloys Used in Making ZincDie Casting AlloysE527 Practice for Num
9、bering Metals and Alloys in theUnified Numbering System (UNS)2.3 ANSI Standard:4H35.1 Alloy and Temper Designation Systems for Alumi-num3. Basis of Codification3.1 The designations for alloys and unalloyed metals arebased on their chemical composition limits.NOTE 1For aluminum and magnesium alloys,
10、cast and wrought,standard limits for alloying elements and impurities are expressed to thefollowing places:Less than 0.0001 % (used only for magnesium alloys) 0.0000X0.0001 to 0.001 % 0.000X0.001 to 0.01 % 0.00X0.01 to 0.10 %Unalloyed aluminum made by a refining process 0.0XXAlloys and unalloyed alu
11、minum or magnesium not made bya refining process0.0X0.10 through 0.55 % 0.XXOver 0.55 % 0.X,X.X,XX.X3.2 Designations shall be assigned, revised, and cancelledby Subcommittee B07.07 of ASTM Committee B07 on LightMetals and Alloys on written requests to its chairman. Com-plete chemical composition lim
12、its shall be submitted withrequest for assignment or revision of designations. Arbitraryassignments by other subcommittees or committees will not berecognized.1This practice is under the jurisdiction of ASTM Committee B02 on NonferrousMetals and Alloys and is the direct responsibility of Subcommitte
13、e B02.04 on Zincand Cadmium.Current edition approved Aug. 1, 2013. Published August 2103. Originallyapproved in 1962. Last previous edition approved in 2005 as B275 05. DOI:10.1520/B0275-05R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at se
14、rviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available in the Related Materials section (gray pages) of the Annual Book ofASTM S
15、tandards, Vol 02.02.*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. United States13.3 The temper designation, which is used for all metalforms, except ingot, follows the alloy designa
16、tion and isseparated with a dash.4. Alloys4.1 Designation for alloys shall consist of not more than twoletters representing the alloying elements (Note 2) specified inthe greatest amount, arranged in order of decreasingpercentages, or in alphabetical order if of equal percentages,followed by the res
17、pective percentages rounded off to wholenumbers and a serial letter (Notes 3 and 4). The full name ofthe base metal precedes the designation, but it is omitted forbrevity when the base metal being referred to is obvious.NOTE 2For codification, an alloying element is defined as an element(other than
18、the base metal) having a minimum content greater than zeroeither directly specified or computed in accordance with the percentagesspecified.NOTE 3The serial letter is arbitrarily assigned in alphabetical se-quence starting with “A” (omitting “I” and “O”) and serves to differentiateotherwise identica
19、l designations. A serial letter is necessary to completeeach designation.NOTE 4The designation of a casting alloy in ingot form is derivedfrom the composition specified for the corresponding alloy in the form ofcastings. Thus, a casting ingot designation may consist of an alloydesignation having one
20、 or more serial letters, one for each productcomposition, or it may consist of one or more alloy designations.4.2 The letters used to represent alloying elements shall bethose in Table 1.4.3 In rounding percentages, the nearest whole number shallbe used. If two choices are possible as when the decim
21、al isfollowed by a 5 only, or a 5 followed only by zeros, the nearesteven whole number shall be used.4.4 When a range is specified for the alloying element, therounded mean shall be used in the designation.4.5 When only a minimum percentage is specified for thealloying element, the rounded minimum p
22、ercentage shall beused in the designation.5. Unalloyed Metals5.1 Designations for unalloyed metals consist of the speci-fied minimum purity, all digits retained but dropping thedecimal point, followed by a serial letter (Note 3). The fullname of the base metal precedes the designation, but it isomit
23、ted for brevity when the base metal being referred to isobvious.6. Keywords6.1 aluminum; lead; magnesium; tin; UNS designations;zincAPPENDIXES(Nonmandatory Information)X1. EXAMPLES OF CODIFICATIONX1.1 Example 1For Alloy CG181A in SpecificationB327, “C” represents copper, the alloying element specifi
24、ed inthe greatest amount; “G” represents magnesium, the alloyingelement specified in the second greatest amount; 18 indicatesthat the rounded mean copper percentage lies between 17 and19; 1 signifies the nearest whole number for magnesiumpercentage; and “A” as the final letter indicates that this is
25、 thefirst alloy qualified and assigned under the designation CG181.X1.2 Example 2For Alloys AZ91A, B, and C, in Speci-fication B93/B93M, “A” represents aluminum, the alloyingelement specified in the greatest amount; “Z” represents zinc,the alloying element specified in the second greatest amount;“9”
26、 indicates that the rounded mean aluminum percentage liesbetween 8.6 and 9.4; “1” signifies that the rounded mean of thezinc lies between 0.6 and 1.4; and “A” as the final letterindicates that this is the first alloy whose composition qualifiedassignment of the designation AZ91. The final serial let
27、ters Band C signify alloys subsequently developed whose specifiedcompositions differ slightly from the first and from one anotherbut do not differ sufficiently to effect a change in the basicdesignation.TABLE 1 Letters Representing Alloying ElementsAAluminum NNickelBBismuth PLeadCCopper QSilverDCadm
28、ium RChromiumERare earths SSiliconFIron TTinGMagnesium VGadoliniumHThorium WYttriumJStrontium XCalciumKZirconium YAntimonyLLithium ZZincMManganeseB275 05 (2013)2X2. DESIGNATIONS FOR METALS AND ALLOYS ASSIGNED IN CONFORMANCE WITH PRACTICE B275, FOR CODIFI-CATION OF CERTAIN NONFERROUS METALS AND ALLOY
29、SX2.1 Designations for metals and alloys assigned in confor-mance with Practice B275, and the ASTM specifications inwhich they are used, are shown in Table X2.1.X3. DESIGNATIONS FOR METALS AND ALLOYS FORMERLY ASSIGNED IN CONFORMANCE WITH PRACTICE B275X3.1 Designations assigned in conformance with th
30、is prac-tice were used for wrought aluminum and wrought aluminumalloys in ASTM specifications prior to 1960 and for castaluminum and aluminum alloys and ingot prior to 1974 butnow designations conforming to the American National Stan-dard Alloys and Temper Designation Systems for Aluminum(ANSI H35.1
31、) are standard with the UNS, Practice E527 forinformation only. The former ASTM designations and theTABLE X2.1 Designations Assigned for Nonferrous Metals andAlloys in Conformance with Practice B275Designation ASTM SpecificationsPractice B275 UNS B37 B102 B86 B240 B327Aluminum alloy850A * . . . .900
32、A * . . . .920A * . . . .950A * . . . .980A * . . . .990A * . . . .CG181A . . . . *G1C . . . . *ZG71A . . . . *Lead alloyY10AYT155A.*.Tin alloyCY44APY1815AYC135A.*.Zinc alloyAC41A Z35531 . . * . .AG40A Z35520 . . * . .AC41A Z35530 . . . * .AG40A Z33521 . . . * .AC43A Z35541 . . * . .AG40B Z33523 . .
33、 * . .AC43A Z35540 . . . * .AG40B Z33522 . . . * .* Alloys appear in applicable specifications which are found in the Annual Bookof ASTM Standards, Vol 02.02.TABLE X3.1 Wrought Aluminum AlloysDesignations DesignationsANSI H35.1FormerB275 63UNS ANSI H35.1FormerB275 63UNS1060 996A A91060 5056 GM50A A9
34、50561100 990A A91100 5083 GM41A A950832011 CB60A A92011 5086 GM40A A950862014 CS41A A92014 5154 GR40A A951542017 CM41A A92017 5254 GR40B A952542018 CN42C A92018 5454 GM31A A954542024 CG42A A92024 5456 GM51A A954562117 CG30A A92117 5652 GR20B A956523003 M1A A93003 6053 GS11B A960533004 MG11A A93004 6
35、061 GS11A A960614032 SG121A A94032 6063 GS10A A960635005 G1B A95005 6101 GS10B A961015050 G1A A95050 7075 ZG62A A970755052 GR20A A95052B275 05 (2013)3corresponding ANSI and UNS designations for wrought alloysare as shown in Table X3.1. Cast alloys and ingot are as shownin Table X3.2.X4. MAGNESIUM-AL
36、LOY REGISTRATIONX4.1 A registration record of magnesium alloys with estab-lished designations and chemical composition is shown inTable X4.1.TABLE X3.2 Cast Aluminum Alloys and Aluminum Alloys in Ingot FormADesignations DesignationsANSI H35.1FormerB275 63UNS ANSI H35.1FormerB275 63UNS201.0 CQ51A A02
37、010 380.0 SC84B A03800201.2 CQ51A A02012 380.2 SC84C A03802. CS42AB. A380.0 SC84A A13800208.0 CS43A A02080 A380.1 SC84A-B A13801208.1 CS43A A02081 383.0 SC102A A03830. CS66AC. 383.1 SC102A A03831222.0 CG100A A02220 384.0 SC114A A03840222.1 CG100A A02221 384.1 SC114A A03841. CS72AD. . SC122AC. CS74AC
38、. . SF101AD.238.0ECS104A A02380 413.0 S12B A04130238.1FCS104A A02381 413.2 S12C A04132242.0 CN42A A02420 A413.0 S12A A14130242.1 CN42A A02421 A413.1 S12A-B A14131295.0 C4A A02950 443.0 S5B A04430295.1 C4A A02951 443.1 S5B A04431. SC64AG. 443.2 S5A A04432. SC64BG. A443.0ES5B A14430. SC64CC. A443.1FS5
39、B A14431319.0 SC64D A03190 B443.0 S5A A24430319.1 SC64D A03191 C443.0 S5C A34430328.0 SC82A A03280 C443.1 S5C A34431328.1 SC82A A03281 A444.0 S7A A14440332.0 SC103A A03320 A444.2 S7A A14442332.1 SC103A A03321 512.0EGS42A A05120. SC104AH. 512.2FGS42A A05122333.0 SC94A A03330 . GS31AD.333.1 SC94A A033
40、31 513.0 GZ42A A05130336.0 SN122A A03360 513.2 GZ42A A05132336.1 SN122A A03361 514.0 G4A A05140354.0 SC92A A03540 514.1 G4A A05141354.1 SC92A A03541 518.0 G8A A05180355.0 SC51A A03550 518.1 G8A A05181355.1 SC51A A03551 520.0 G10A A05200355.2 SC51C A03552 520.2 G10A A05202C355.0 SC51B A33550 535.0 GM
41、70B A05350C355.2 SC51B A33552 535.2 GM70B A05352356.0 SC70A A03560 705.0 ZG32A A07050356.1 SC70A A03561 705.1 ZG32A A07051356.2 SC70C A03562 707.0 ZG42A A07070A356.0 SC70B A13560 707.1 ZG42A A07071A356.2 SC70B A13562 710.0 ZG61B A07100A357.0 SG71A A03570 710.1 ZG61B A07101359.0 SC91A A03590 711.0 ZG
42、60A A07110359.2 SG91A A03592 711.1 ZG60A A07111360.0 SG100B A03600 712.0 ZG61A A07120360.2 SG100C A03602 712.2 ZG61A A07122A360.0 SG100A A13600 713.0 ZC81A A07130A360.1 SG100A-B A13601 713.1 ZC81B A07131AAlloys appear in applicable specifications in the Annual Book of ASTM Standards, Vol 02.02, exce
43、pt as otherwise noted.BLast appeared in Specification B179 63.CLast appeared in Specification B179 72.DLast appeared in Specification B179 64.ELast appeared in Specification B108 80.FLast appeared in Specification B179 78.GLast appeared in Specification B179 58.HLast appeared in Specification B179 6
44、5.B275 05 (2013)4TABLEX4.1Magnesium-AlloyRegistrationRecordNOTE1Thesearecastorwroughtproductcompositions(exceptM19XXX)castingingotcompositionsmaybedifferent.DesignationChemicalComposition,%maxunlessshownasarangeorasaminPrac-ticeB275UNSMagne-siumAlumi-numCal-ciumCop-perGado- liniumIronLithiumMan-ga-n
45、eseNeod- ymiumNickelRareEarthsSili- conSilverStron-tiumYt-triumZincZirco-niumOtherElementsSpecificEachTo-tal9980AM1998099.80min0.020.100.0010.01Sn,0.01Pb0.059980BM1998199.80min0.020.100.0050.01Sn,0.01Pb0.059990AM1999099.90min0.0030.040.0040.0010.0050.00007B,0.0001Cd0.019995AM1999599.95min0.0100.0030
46、.0040.0010.0050.00003B0.0059998AM1999899.98min0.0040.00050.0020.0020.00050.0030.01Ti,0.00005Cd,0.00003B,0.001Pb0.005AJ52AAM17520remainder4.55.50.0100.004B0.240.6B0.0010.101.72.30.220.01AJ62AAM177620remiander5.56.60.0100.04B0.240.6B0.0010.102.02.80.220.01AM50AM10500remainder4.45.40.0100.004B0.260.6B0
47、.0020.100.220.02AM60AM10600remainder5.56.50.350.130.60.030.500.220.30AM60BM10602remainder5.56.50.0100.005B0.240.6B0.0020.100.220.02.AM100AM10100remainder9.310.70.100.100.350.010.300.300.30AM100BM10102remainder9.410.60.080.130.350.011.00.30AS21AM10210remainder1.82.50.010.0050.180.70.0010.72.10.200.01
48、AS21BAM10212remainder1.82.50.0080.00350.050.150.0010.060.250.71.20.250.01AS41AM10410remainder3.55.00.060.200.500.030.501.50.120.30AS41BM10412remainder3.55.00.020.00350.350.70.0020.501.50.120.02AZ21AM11210remainder1.62.50.100.250.050.0050.150.0020.050.81.60.30AZ31AM11310remainder2.53.50.300.050.0050.
49、201.00.0050.300.61.40.30AZ31BM11311remainder2.53.50.040.050.0050.201.00.0050.100.61.40.30AZ31CM11312remainder2.43.60.100.151.00.030.100.501.50.30AZ61AM11610remainder5.87.20.050.0050.150.50.0050.100.401.50.30AZ63AM11630remainder5.36.70.250.150.350.010.302.53.50.30AZ63BM11632remainder5.36.70.020.0030.150.70.0020.102.53.50.30AZ63CM11634remainder5.36.70.050.0030.150.70.0030.302.53.50.30AZ63DM11636remainder5.07.00.100.0030.150.70.0030.302.04.00.30AZ80AM11800
