1、Designation: B275 131B275 14Standard Practice forCodification of Certain Nonferrous Metals and Alloys, Castand WroughtZinc, Tin and Lead Die Castings1This standard is issued under the fixed designation B275; the number immediately following the designation indicates the year oforiginal adoption or,
2、in the 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 U.S. Department of Defense.1 NOTEE
3、ditorial changes were made throughout in April 2014.1. Scope*1.1 This practice covers a system for designating die-casting die casting alloys of zinc, tin and lead. Those designationscurrently being used in specifications under the jurisdiction of Committees B02 on Nonferrous Metals are listed inApp
4、endix TableX2.1 Table X2.1in Appendix X2.NOTE 1The alloy designations now being used in Committee B07 specifications for aluminum and aluminum-alloy wrought and cast productsconform to ANSI H35.1. Alloys formerly codified by this practice and the corresponding ANSI designations are shown in Tables X
5、3.1 and X3.2 oftheAppendix X3 Appendix for legacy purposes.NOTE 2The alloy designations now being used in Committee B07 specifications for magnesium and magnesium-alloy wrought and cast productsconform to Practice B951, as indicated in Appendix X4. Alloy designations formerly codified by this practi
6、ce are no longer relevant.1.2 The equivalent Unified Numbering System (UNS) alloy designations shown in the appendixes are in accordance withPractice E527.2. Referenced Documents2.1 The following documents form a part of this practice to the extent referenced herein:2.2 ASTM Standards:2B86 Specifica
7、tion for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die CastingsB102 Specification for Lead- and Tin-Alloy Die Castings (Withdrawn 2011)3B240 Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die CastingsB327 Specification for Master Alloys Used in Making Zinc Die
8、 Casting AlloysB951 Practice for Codification of Unalloyed Magnesium and Magnesium-Alloys, Cast and WroughtE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)2.3 ANSI Standard:4H35.1 Alloy and Temper Designation Systems for Aluminum3. Basis of Codification3.1 The desi
9、gnations for alloys and unalloyed metals are based on their chemical composition limits.3.2 Designations shall be assigned, revised, and cancelled by Subcommittee B02.04 of ASTM Committee B02 on NonferrousMetals and Alloys on written requests to its chairman. Complete chemical composition limits sha
10、ll be submitted with request forassignment or revision of designations. Arbitrary assignments by other subcommittees or committees will not be recognized.4. Alloys4.1 Designation for alloys shall consist of not more than two letters representing the alloying elements (Note 3) specified in thegreates
11、t amount, arranged in order of decreasing percentages, or in alphabetical order if of equal percentages, followed by the1 This practice is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.04 on Zinc andCadmium.Current e
12、dition approved Dec. 1, 2013Oct. 1, 2014. Published January 2014October 2014. Originally approved in 1962. Last previous edition approved in 2013 asB275 05 (2013).B275 131. DOI: 10.1520/B0275-13E01.10.1520/B0275-14.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM C
13、ustomer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.4 Available in the Related Materials section (gray
14、pages) of the Annual Book of ASTM Standards, Vol 02.02.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes a
15、ccurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Har
16、bor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1respective percentages rounded off to whole numbers and a serial letter (Notes 4 and 5). The full name of the base metal precedesthe designation, but it is omitted for brevity when the base metal being referred to is obvious.NOT
17、E 3For codification, an alloying element is defined as an element (other than the base metal) having a minimum content greater than zero eitherdirectly specified or computed in accordance with the percentages specified.NOTE 4The serial letter is arbitrarily assigned in alphabetical sequence starting
18、 with “A” (omitting “I” and “O”) and serves to differentiate otherwiseidentical designations. A serial letter is necessary to complete each designation.NOTE 5The designation of a casting alloy in ingot form is derived from the composition specified for the corresponding alloy in the form of castings
19、.Thus, a casting ingot designation may consist of an alloy designation having one or more serial letters, one for each product composition, or it may consistof one or more alloy designations.4.2 The letters used to represent alloying elements shall be those in Table 1.4.3 In rounding percentages, th
20、e nearest whole number shall be used. If two choices are possible as when the decimal isfollowed by a 5 only, or a 5 followed only by zeros, the nearest even whole number shall be used.4.4 When a range is specified for the alloying element, the rounded mean shall be used in the designation.4.5 When
21、only a minimum percentage is specified for the alloying element, the rounded minimum percentage shall be used inthe designation.5. Unalloyed Metals5.1 Designations for unalloyed metals consist of the specified minimum purity, all digits retained but dropping the decimalpoint, followed by a serial le
22、tter (Note 4). The full name of the base metal precedes the designation, but it is omitted for brevitywhen the base metal being referred to is obvious.6. Keywords6.1 aluminum; lead; magnesium; tin; UNS designations; zincAPPENDIXES(Nonmandatory Information)X1. EXAMPLES OF CODIFICATIONX1.1 Example 1Fo
23、r Alloy AG40A in Specifications B86 and B240, “A” represents aluminum, the alloying element specifiedin the greatest amount; “G” represents magnesium, the alloying element specified in the second greatest amount; 4 indicates thatthe rounded mean aluminum percentage lies between 3 and 5; 0 signifies
24、the nearest whole number for magnesium percentage;and “A” as the final letter indicates that this is the first alloy qualified and assigned under the designation AG40.X2. DESIGNATIONS FOR METALS AND ALLOYS ASSIGNED IN CONFORMANCE WITH PRACTICE B275, FOR CODIFI-CATION OF CERTAIN NONFERROUS METALS AND
25、 ALLOYSX2.1 Designations for metals and alloys assigned in conformance with Practice B275, and theASTM specifications in which theyare used, are shown in Table X2.1.X3. DESIGNATIONS FOR METALS AND ALLOYS FORMERLY ASSIGNED IN CONFORMANCE WITH PRACTICE B275TABLE 1 Letters Representing Alloying Element
26、sAAluminum NNickelBBismuth PLeadCCopper QSilverDCadmium RChromiumERare earths SSiliconFIron TTinGMagnesium VGadoliniumHThorium WYttriumJStrontium XCalciumKZirconium YAntimonyLLithium ZZincMManganeseB275 142X3.1 Aluminum alloys no longer use the designations formerly found in Specification B275. Desi
27、gnations given below are forlegacy purposes only. Designations assigned in conformance with this practice were used for wrought aluminum and wroughtaluminum alloys in ASTM specifications prior to 1960 and for cast aluminum and aluminum alloys and ingot prior to 1974 butnow designations conforming to
28、 theTABLE X2.1 Designations Assigned for Nonferrous Metals andAlloys in Conformance with Practice B275Designation ASTM SpecificationsPractice B275 UNS B102 B86 B240Lead alloyY10AYT155AAA.Tin alloyCY44APY1815AYC135AAAA.Zinc alloyAC41A Z35533 . A .AG40A Z33525 . A .AC41A Z35532 . . AAG40A Z33524 . . A
29、AC43A Z35545 . A .AG40B Z33527 . A .AC43A Z35544 . . AAG40B Z33526 . . ATABLE X2.1 Designations Assigned for Nonferrous Metals andAlloys in Conformance with Practice B275Designation ASTM SpecificationsPractice B275 UNS B102 B86 B240 B327Lead alloyY10AYT155AAA.Tin alloyCY44APY1815AYC135AAAA.Zinc allo
30、yAC41A Z35533 . A . .AG40A Z33525 . A . .AC41A Z35532 . . A .AG40A Z33524 . . A .AC43A Z35545 . A . .AG40B Z33527 . A . .AC43A Z35544 . . A .AG40B Z33526 . . A .A Alloys appear in applicable specifications which are found in the Annual Book ofASTM Standards, Vol. 02.04B275 143American National Stand
31、ard Alloys and Temper Designation Systems for Aluminum (ANSI H35.1) are standard with the UNS,Practice E527 for information only. The former ASTM designations and the corresponding ANSI and UNS designations forwrought alloys are as shown in Table X3.1. Cast alloys and ingot are as shown in Table X3.
32、2.TABLE X3.1 Wrought Aluminum AlloysDesignations DesignationsANSI H35.1 FormerB275 63 UNS ANSI H35.1 FormerB275 63 UNS1060 996A A91060 5056 GM50A A950561100 990A A91100 5083 GM41A A950832011 CB60A A92011 5086 GM40A A950862014 CS41A A92014 5154 GR40A A951542017 CM41A A92017 5254 GR40B A952542018 CN42
33、C A92018 5454 GM31A A954542024 CG42A A92024 5456 GM51A A954562117 CG30A A92117 5652 GR20B A956523003 M1A A93003 6053 GS11B A960533004 MG11A A93004 6061 GS11A A960614032 SG121A A94032 6063 GS10A A960635005 G1B A95005 6101 GS10B A961015050 G1A A95050 7075 ZG62A A970755052 GR20A A95052B275 144TABLE X3.
34、2 Cast Aluminum Alloys and Aluminum Alloys in Ingot FormADesignations DesignationsANSI H35.1 FormerB275 63 UNS ANSI H35.1 FormerB275 63 UNS201.0 CQ51A A02010 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 A0208
35、1 383.0 SC102A A03830. CS66AC . 383.1 SC102A A03831222.0 CG100A A02220 384.0 SC114A A03840222.1 CG100A A02221 384.1 SC114A A03841. CS72AD . . SC122AC . CS74AC . . SF101AD .238.0E CS104A A02380 413.0 S12B A04130238.1F CS104A A02381 413.2 S12C A04132242.0 CN42A A02420 A413.0 S12A A14130242.1 CN42A A02
36、421 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 . A443.0E S5B A14430. SC64CC . A443.1F S5B A14431319.0 SC64D A03190 B443.0 S5A A24430319.1 SC64D A03191 C443.0 S5C A34430328.0 SC82A A03280 C443.1 S5C A34431328.1 SC82A A0328
37、1 A444.0 S7A A14440332.0 SC103A A03320 A444.2 S7A A14442332.1 SC103A A03321 512.0E GS42A A05120. SC104AH . 512.2F GS42A A05122333.0 SC94A A03330 . GS31AD .333.1 SC94A A03331 513.0 GZ42A A05130336.0 SN122A A03360 513.2 GZ42A A05132336.1 SN122A A03361 514.0 G4A A05140354.0 SC92A A03540 514.1 G4A A0514
38、1354.1 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 GM70B A05350C355.2 SC51B A33552 535.2 GM70B A05352356.0 SC70A A03560 705.0 ZG32A A07050356.1 SC70A A03561 705.1 ZG32A A07051356.2 S
39、C70C 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 ZG60A A07110359.2 SG91A A03592 711.1 ZG60A A07111360.0 SG100B A03600 712.0 ZG61A A07120360.2 SG100C A03602 712.2 ZG61A A07122A360.0
40、 SG100A A13600 713.0 ZC81A A07130A360.1 SG100A-B A13601 713.1 ZC81B A07131A Alloys appear in applicable specifications in the Annual Book of ASTM Standards, Vol 02.02, except as otherwise noted.B Last appeared in Specification B179 63.C Last appeared in Specification B179 72.D Last appeared in Speci
41、fication B179 64.E Last appeared in Specification B108 80.F Last appeared in Specification B179 78.G Last appeared in Specification B179 58.H Last appeared in Specification B179 65.B275 145X4. UNALLOYED MAGNESIUM AND MAGNESIUM-ALLOYSX4.1 Magnesium alloys no longer use the designations formerly found
42、 in Specification B275. Current designations for unalloyedmagnesium and magnesium alloys, cast and wrought, are found in Practice B951.SUMMARY OF CHANGESCommittee B02 has identified the location of selected changes to this standard since the last issue (B275131)that may impact the use of this standa
43、rd. (Approved October 1, 2014.)(1) The title of the standard was revised to reflect the current more limited scope covering only certain zinc, tin and lead die castingdesignations.(2) The term “die casting” is used as opposed to “die-casting.”SUMMARY OF CHANGESCommittee B02 has identified the locati
44、on of selected changes to this standard since the last issue(B275-05(2013) that may impact the use of this standard. (Approved December 1, 2013.)(1) Jurisdiction of Practice B275 was transferred to Subcommittee B02.04 from Subcommittee B07.03.(2) Change Scope to only include zinc, tin and lead alloy
45、s.(3) Move all references to aluminum to nonmandatory Appendix.(4) Remove all references to magnesium designations and reference Specification B951 instead.(5) Update UNS numbers in Table X21.1(6) Change example in Appendix X1.1 to an ally remaining in the standard.ASTM International takes no positi
46、on 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 entirely their own responsibility
47、.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM I
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