1、Designation: B952/B952M 10Standard Specification forZinc Alloys in Ingot Form for Spin Casting1This standard is issued under the fixed designation B952/B952M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers zinc alloys in ingot form forremelting for the manufacture of Spin Castings as specified anddesignated,
3、 as shown in Table 1. Seven alloy compositions arespecified, designated as follows:Common Traditional UNSSpin Casting Alloy SC-A . .Spin Casting Alloy SC-B . .Spin Casting Alloy SC-C . .Spin Casting Alloy SC-D HJ10 .Spin Casting Alloy SC-E HJ20 .Spin Casting Alloy SC-F HJ40 .ZA-73 . .1.2 Zinc alloys
4、 #2, #3, #5, and ZA-8 specified in Specifi-cation B240 are also used in the spin casting process.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used in
5、dependently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 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 become familiarwith all haza
6、rds including those identified in the appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manufacturer, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 The follo
7、wing documents of the issue in effect on dateof order acceptance form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B240 Specification for Zinc and Zinc-Aluminum (ZA) Al-loys in Ingot Form for Foundry and Die CastingsB899 Terminology Relating to Non-ferrous Metals a
8、ndAlloysB908 Practice for the Use of Color Codes for Zinc CastingAlloy IngotE29 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 CompositionE536 Test Methods
9、for Chemical Analysis of Zinc and ZincAlloysE634 Practice for Sampling of Zinc and Zinc Alloys forOptical Emission Spectrometric Analysis2.3 ISO Standards:3ISO 3815-1 Zinc and zinc alloysPart 1: Analysis of solidsamples by optical emission spectrometryISO 3815-2 Zinc and zinc alloysPart 2: Analysis
10、byinductively coupled plasma optical emission3. Terminology3.1 Terms shall be defined in accordance with TerminologyB899.3.2 Definitions of Terms Specific to This Standard:3.3 spin casting, na casting process in which moltenmetal is poured into a rubber, polymer, graphite or metal moldand spun centr
11、ifugally until solidified, also a product producedby such a process.4. Ordering Information4.1 Orders for ingots under this specification shall includethe following information:4.1.1 Quantity in pounds,4.1.2 Alloy (Table 1),4.1.3 Size, if not the manufacturers standard,4.1.4 Specification number and
12、 date,4.1.5 Source inspection (Section 7), and4.1.6 Marking (Section 9).5. Materials and Manufacture5.1 The alloys may be made by any approved process.1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB0
13、2.04 on Zinc and Cadmium.Current edition approved Oct. 1, 2010. Published October 2010. Originallyapproved in 2007. Last previous edition approved in 2009 as B952/B952M - 09.DOI: 10.1520/B0952_B0952M-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Ser
14、vice at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.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.5.2 The material covered by this specification shall be ofuniform quality and shall be free from dross or other harmfulcontamination.6. Chemical Requi
16、rements6.1 LimitsThe alloy shall conform to the requirements asto chemical composition prescribed in Table 1. Conformanceshall be determined by the producer by analyzing samplestaken at the time the ingots are made. If the producer hasdetermined the chemical composition of the metal during thecourse
17、 of manufacture, it shall not be required to sample andanalyze the finished product.6.2 In case of dispute, the following requirements shallapply:6.2.1 Number of SamplesSamples for verification ofchemical composition shall be taken as follows:6.2.2 If the ingots are shipped in carload lots of the sa
18、mealloy, not less than five (5) ingots shall be taken at random fromthe carload for sampling. If the shipment is less than a carloadlot, one (1) sample ingot shall be taken from each 10 000 lb.4500 kg or fraction thereof. When it is deemed necessary, asample may be taken from each melt of 1000 lb. 4
19、50 kg ormore.6.3 Methods of SamplingSamples from ingots for deter-mination of chemical composition shall be taken in accordancewith one of the following methods:6.3.1 Samples for chemical analysis shall be taken from thematerial by drilling, sawing milling, turning, or clipping arepresentative piece
20、 or pieces to obtain weight of preparedsample not less than 100 g. Sampling shall be in accordancewith Practice E88.6.3.2 By agreement, an optional method of sampling foranalysis may be by melting together representative portions ofeach ingot selected, and then sampling the liquid composite bycastin
21、g suitable specimens for either spectrographic or chemi-cal analysis.6.4 Method of AnalysisThe determination of chemicalcomposition shall be made in accordance with suitable chemi-cal Test Methods E536, suitable spectrochemical methodsISO 3815-1 and ISO 3815-2, or other methods. In case ofdispute, t
22、he results should preferably be secured by TestMethods E536 or ISO 3815-1 or ISO 3815-2 and shall be thebasis of acceptance.NOTE 1Test Methods E536 is not directly applicable to the alloys inSpecification B952/B952M. ISO 3815-1 and ISO 3815-2 are genericmethods applied to zinc and zinc alloys. Each
23、of the methods may bemodified and formatted for the alloy to be assayed. An experiencedchemist, using suitable and/or traceable standards along with valid qualityassurance techniques, will be able to perform and validate the methodsand demonstrate acceptable precision and accuracy.6.5 Samples for sp
24、ectrochemical and other methods ofanalysis shall be suitable for the form of material beinganalyzed and the type of analytical method used (for example,see Practice E634.7. Source Inspection7.1 If the purchaser desires that his representative inspect orwitness the inspection and testing of the produ
25、ct prior toshipment, such agreement shall be made by the purchaser andproducer or supplier as part of the contract or purchase order.7.2 When such inspection or witness of inspection andtesting is agreed upon, the producer or supplier shall afford thepurchasers representative all reasonable faciliti
26、es to satisfyhim that the product meets the requirements of this specifica-tion. Inspection and tests shall be conducted so there is nounnecessary interference with the producers operations.8. Rejection and Rehearing8.1 Material that fails to conform to the requirements of thisspecification may be r
27、ejected. Rejection should be reported tothe producer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the producer orsupplier may make claim for a rehearing. If the rehearingestablishes that the material does not conform to the require-ments of this specif
28、ication, as much of the rejected originalmaterial as possible shall be returned to the producer orsupplier.9. Identification Marking9.1 All ingots shall be properly marked for identificationwith the producers name or brand.9.2 Each bundle or skid shall be identified with the produc-ers heat, lot or
29、other identification mark.9.3 Each ingot, bundle or skid shall be marked with theappropriate Color Code for the alloy as per North Americanrequirements in Practice B908.TABLE 1 Chemical and North American Color Code RequirementsAlloy SC-A Alloy SC-B Alloy SC-C ZA-73 Alloy SC-D Alloy SC-E Alloy SC-FC
30、olor CodeAElementBAluminum 3.94.3 3.94.3 3.44.6 7.78.0 3.23.8 3.2-3.8 3.25-3.75Magnesium 0.10.2 0.40.6 0.40.43 0.020.03 0.15-0.30 0.45-0.75 0.45-4.75Copper 2.62.9 2.73.3 1.31.4 3.03.3 1.2-1.8 2.5-3.25 4.25-4.75Iron, max 0.035 0.035 0.10 0.075 0.035 0.075 0.035Lead, max 0.004 0.004 0.015 0.005 0.004
31、0.005 0.004Cadmium, max 0.0030 0.0030 0.005 0.003 0.003 0.003 0.003Tin, max 0.0015 0.0015 0.005 0.002 0.002 0.003 0.002Nickel, max . . 0.02 . . . . 0.02 . . .Zinc Remainder Remainder Remainder Remainder Remainder Remainder RemainderAPer Practice B908.BFor purposes of acceptance and rejection, the ob
32、served value or calculated value obtained from analysis should be rounded to the nearest unit in the last right-handplace of figures, used in expressing the specific limit in accordance with the rounding procedure prescribed in Practice E29.B952/B952M 10210. Preparation for Delivery10.1 PackagingUnl
33、ess otherwise specified, the ingot shallbe packaged to provide adequate protection during normalhandling and transportation. Each package shall contain onlyone alloy unless otherwise agreed upon.11. Keywords11.1 casting; casting alloys; centrifugical casting; prototyp-ing; rubber mold; SC-A; SC-B; S
34、C-C; silicon mold; spincasting; ZA alloys; Zamak; ZA-73; zinc; zinc-aluminum alloysSUMMARY OF CHANGESCommittee B02 has identified the location of selected changes to this standard since the last issue(B952/B952M - 09) that may impact the use of this standard. (Approved October 1, 2010.)(1) Note 1 wa
35、s added to clarify the use of analytical methodsASTM E536, ISO 3815-1 and ISO 3815-2.Committee B02 has identified the location of selected changes to this standard since the last issue (B952 - 08)that may impact the use of this standard. (Approved October 1, 2009.)(1) SI values were added to bring t
36、he standard into compliancewith ASTM Form and Style policies for SI.(2) The standard was republished as a combined standard,having both SI values and inch-pound values regarded sepa-rately as standard. The Scope Section 1.3 was revised to reflectthis change.(3) Section 6 was revised to include SI va
37、lues.(4) Three new alloy compositions, SC-D, SC-E, SC-F wereadded to Table 1.(5) The reference to Test Methods E47 as a method to analyzefor tin only has been removed.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin th
38、is 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.This standard is subject to revision at any time by the responsible technical committee and must b
39、e 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 International Headquarters. Your comments will receive careful consideration at a meeting of theres
40、ponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, W
41、est Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).B952/B952M 103
