1、Designation:B952/B952M10 Designation: B952/B952M 12Standard 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,
2、 the year of last revision. 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 for remelting for the manufacture of Spin Castings a
3、s specified anddesignated, as shown in Table 1. Seven alloy compositions are specified, 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 HJ4
4、0 .ZA-73 . .1.2 Zinc alloys #2, #3, #5, and ZA-8 specified in Specification B240 are also used in the spin casting process.1.3The1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values statedin each system may not be exact equivalents; there
5、fore, each system shall be used independently of the other. Combining valuesfrom the two systems may result in non-conformance with the standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this stan
6、dard to become familiar with all hazards including those identified in the appropriate Material Safety DataSheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, anddetermine the applicability of regulatory limitations prior to u
7、se.2. Referenced Documents2.1 The following documents of the issue in effect on date of order acceptance form a part of this specification to the extentreferenced herein:2.2 ASTM Standards:2B240 Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die CastingsB899 Termi
8、nology Relating to Non-ferrous Metals and AlloysB908 Practice for the Use of Color Codes for Zinc Casting Alloy IngotB949 Specification for General Requirements for Zinc and Zinc Alloy ProductsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications E88E88
9、Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical CompositionE536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys E634E634 Practice for Sampling of Zinc and Zinc Alloys by Spark Atomic Emission Spectrometry2.3 ISO Standards:3ISO 3815-1 Zinc and
10、zinc alloysPart 1: Analysis of solid samples by optical emission spectrometryISO 3815-2 Zinc and zinc alloysPart 2: Analysis by inductively coupled plasma optical emission3. Terminology3.1 Terms shall be defined in accordance with Terminology B899.3.2 Definitions of Terms Specific to This Standard:1
11、This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.04 on Zincand Cadmium.Current edition approved Oct.May 1, 2010.2012. Published October 2010.August 2012. Originally approved in 2007. Last previous
12、edition approved in 20092010 asB952/B952M - 109. DOI: 10.1520/B0952_B0952M-102.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page
13、on the ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.1This 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
14、previous version. Becauseit may not be technically possible to adequately depict all changes accurately, 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
15、 Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.1 spin casting, na casting process in which molten metal is poured into a rubber, polymer, graphite or metal mold andspun centrif
16、ugally until solidified, also a product produced by such a process.4. Ordering Information4.1Orders for ingots under this specification shall include the following information:4.1.1Quantity in pounds,4.1.2Alloy (Table 1),4.1.3Size, if not the manufacturers standard,4.1.4Specification number and date
17、,4.1.5Source inspection (Section 7), and4.1.6Marking (Section 9).4.1 Orders for zinc alloy ingot under this specification shall include information as specified in Specification B949, Section 4.5. Materials and Manufacture5.1 The alloys may be made by any approved process.5.2 The material covered by
18、 this specification shall be of uniform quality and shall be free from dross or other harmfulcontamination.6. Chemical Requirements6.1 LimitsThe alloy shall conform to the requirements as to chemical composition prescribed in Table 1. Conformance shallbe determined by the producer by analyzing sampl
19、es taken at the time the ingots are made. If the producer has determined thechemical composition of the metal during the course of manufacture, it shall not be required to sample and analyze the finishedproduct.6.2In case of dispute, the following requirements shall apply:6.2.1Number of SamplesSampl
20、es for verification of chemical composition shall be taken as follows:6.2.2If the ingots are shipped in carload lots of the same alloy, not less than five (5) ingots shall be taken at random from thecarload for sampling. If the shipment is less than a carload lot, one (1) sample ingot shall be taken
21、 from each 10 000 lb. 4500kg or fraction thereof. When it is deemed necessary, a sample may be taken from each melt of 1000 lb. 450 kg or more. .6.2 Chemical requirement procedures shall be in compliance with the provisions of Specification B949, Section 5.2.6.3 Methods of SamplingSamples from ingot
22、s for determination of chemical composition shall be taken in accordance withone of the following methods:6.3.1Samples for chemical analysis shall be taken from the material by drilling, sawing milling, turning, or clipping arepresentative piece or pieces to obtain weight of prepared sample not less
23、 than 100 g. Sampling shall be in accordance withPractice E88.6.3.2By agreement, an optional method of sampling for analysis may be by melting together representative portions of each ingotselected, and then sampling the liquid composite by casting suitable specimens for either spectrographic or che
24、mical analysis.Sampling procedures shall be in compliance with the provisions of Specification B949, Section 6.6.4 Method of AnalysisThe determination of chemical composition shall be made in accordance with suitable chemical TestMethods Approved methods include: Test Methods E536, suitable spectroc
25、hemical methods ISO3815-1 and ISO3815-2, or othermethods. In case of dispute, the results should preferably be secured by Test Methods E536 or ISO3815-1 or ISO3815-2 and shallbe the basis of acceptance. , ISO 3815-1, or ISO 3815-2.NOTE1Test Methods E536 is not directly applicable to the alloys in Sp
26、ecification B952/B952M. ISO3815-1 and ISO3815-2 1Test Methods E536is directly applicable in an unmodified form, only to alloys 3, 5, and 7. ISO 3815-1 and ISO 3815-2 are generic methods applied to zinc and zinc alloys.TABLE 1 Chemical and North American Color Code RequirementsAlloy SC-A Alloy SC-B A
27、lloy SC-C ZA-73 Alloy SC-D Alloy SC-E Alloy SC-FColor 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.
28、075 0.035Lead, max 0.004 0.004 0.015 0.005 0.004 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.
29、BFor purposes of acceptance and rejection, the observed 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
30、 122Each of the methods may be modified and formatted for the alloy to be assayed. An experienced chemist, using suitable and/or traceable standards alongwith valid quality assurance techniques, will be able to perform and validate the methods and demonstrate acceptable precision and accuracy.6.5Sam
31、ples for spectrochemical and other methods of analysis shall be suitable for the form of material being analyzed and thetype of analytical method used (for example, see Practice E634.7. Source Inspection7.1If the purchaser desires that his representative inspect or witness the inspection and testing
32、 of the product prior to shipment,such agreement shall be made by the purchaser and producer or supplier as part of the contract or purchase order.7.2When such inspection or witness of inspection and testing is agreed upon, the producer or supplier shall afford the purchasersrepresentative all reaso
33、nable facilities to satisfy him that the product meets the requirements of this specification. Inspection andtests shall be conducted so there is no unnecessary interference with the producers operations.7.1 Source inspection shall be in compliance with the provisions of Specification B949, Section
34、7.8. Rejection and Rehearing8.1Material that fails to conform to the requirements of this specification may be rejected. Rejection should be reported to theproducer or supplier promptly and in writing. In case of dissatisfaction with the results of the test, the producer or supplier maymake claim fo
35、r a rehearing. If the rehearing establishes that the material does not conform to the requirements of this specification,as much of the rejected original material as possible shall be returned to the producer or supplier.8.1 Claims to be considered in accordance with the provisions of Specification
36、B949, Section 8.9. Identification Marking9.1All ingots shall be properly marked for identification with the producers name or brand.9.2Each bundle or skid shall be identified with the producers heat, lot or other identification mark.9.3Each ingot, bundle or skid shall be marked with the appropriate
37、Color Code for the alloy as per NorthAmerican requirementsin Practice B908. Investigation of Claims9.1 Claims shall be investigated in accordance with the provisions of Specification B949, Section 8.10. Settlement of Claims10.1 Claims shall be settled in accordance with the provisions of Specificati
38、on B949, Section 8.11. Product Identification Marking and Packaging11.1 Each slab, block, jumbo or ingot shall be marked for identification in accordance with the provisions of Specification B949,Section 10.12. Preparation for Delivery10.112.1 PackagingUnless otherwise specified, the ingot shall be
39、packaged to provide adequate protection during normalhandling and transportation. Each package shall contain only one alloy unless otherwise agreed upon.11.13. Keywords113.1 casting; casting alloys; centrifugical casting; prototyping; rubber mold; SC-A; SC-B; SC-C; silicon mold; spin casting;ZA allo
40、ys; 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 - 109) that may impact the use of this standard. (Approved OctoberMay 1, 2010.) 2012.)(1)Note 1 was added to clarify the use of
41、 analytical methods ASTM E536, ISO3815-1 and ISO3815-2.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.) ) Revisions have been made to Sections2, 4, 6, 7, 8, 9, 10, and 11
42、 to reference Specification B949 and delete certain portions of these sections formerlya part of this standard.(1)SI values were added to bring the standard into compliance with ASTM Form and Style policies for SI.(2)The standard was republished as a combined standard, having both SI values and inch
43、-pound values regarded separately asstandard. The Scope Section 1.3 was revised to reflect this change.(3)Section 6 was revised to include SI values.(4)Three new alloy compositions, SC-D, SC-E, SC-F were added to Table 1.B952/B952M 123(5)The reference to Test Methods E47 as a method to analyze for t
44、in only has been removed. ) The titles of Sections 7 and 9 havebeen revised to be in agreement with a standard format for Subcommittee B02.04 standards.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Us
45、ers 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 be reviewed ever
46、y 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 theresponsible techni
47、cal 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, West Conshohocke
48、n, 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 124
