1、Designation:B79212B79213 Standard Specication for Zinc Alloys in Ingot Form for Slush Casting 1 This standard is issued under the xed designation B792; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.Anum
2、ber 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 Thisspecicationcoverscommercialzincalloysiningotformforremeltingforthemanufactureofcastingsfromthealloys as specied and designated as s
3、hown in Table 1. 1.2 Slush casting alloys are used primarily for the manufacture of hollow castings such as lighting xtures, lamp bases, and small statues. 1.3 This specication covers two zinc alloys which are specied and designated as follows: COLSPEC/colnum=“1“ UNS ASTM Z34510 Slush Casting Alloy
4、A Z30500 Slush Casting Alloy B 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 This standard does not purport to address all
5、of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identied in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish app
6、ropriate safety and health practices, and determine the applicability of regulatory limitations prior to use. 2. Referenced Documents 2.1 The following documents of the issue in effect on date of order acceptance form a part of this specication to the extent referenced herein: 2.2 ASTM Standards: 2
7、B899Terminology Relating to Non-ferrous Metals and Alloys B908Practice for the Use of Color Codes for Zinc Casting Alloy Ingot B949Specication for General Requirements for Zinc and Zinc Alloy Products E29Practice for Using Signicant Digits in Test Data to Determine Conformance with Specications E88P
8、ractice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition E527Practice for Numbering Metals and Alloys in the Unied Numbering System (UNS) E536Test Methods for Chemical Analysis of Zinc and Zinc Alloys 2.3 ISO Standards: 3 ISO 3815-1Zinc and zinc alloys
9、 Part 1: Analysis of solid samples by optical emission spectrometry ISO 3815-2Zinc and zinc alloys Part 2: Analysis by inductively coupled plasma optical emission spectrometry 3. Terminology 3.1 Terms shall be dened in accordance with Terminology B899. 4. Ordering Information 4.1 Orders for zinc all
10、oy ingot under this specication shall include information as specied in Specication B949, Section 4. 1 This specication is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.04 on Zinc and Cadmium. Current edition approved
11、May 1, 2012Feb. 1, 2013. Published July 2012March 2013. Originally approved in 1988. Last previous edition approved in 20092012 as B79209.B79212. DOI: 10.1520/B0792-12.10.1520/B0792-13. 2 ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatserviceastm.org.For An
12、nual Book ofASTM Standards volume information, refer to the standards Document Summary page on the ASTM website. 3 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org. This document is not anASTM standard and is intended only
13、 to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because it 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 versio
14、n of the standard as published by ASTM is to be considered the official document. *ASummary of 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 15. Materials and Manufacture 5.1 The a
15、lloys may be made by any approved process. 5.2 The material covered by this specication shall be of uniform quality and shall be free from dross, slag, or other harmful contamination. The ingot shall also be reasonably free of surface corrosion and adhering foreign matter. 6. Chemical Requirements 6
16、.1 LimitsThis alloy shall conform to the requirements as to chemical composition Table 1. 6.2 Chemical requirement procedures shall be in compliance with the provisions of Specication B949, Section 5.2. 7. Sampling for ChemicalAnalysis 7.1 Sampling procedures shall be in compliance with the provisio
17、ns of Specication B949, Section 6. 8. Method of ChemicalAnalysis 8.1 The determination of chemical composition shall be made in accordance with Test Methods E536, or ISO 3815-1, or ISO 3815-2 or other methods. In case of dispute, the results secured by Test Methods E536, or ISO 3815-1, or ISO 3815-2
18、 shall be the basis of acceptance. NOTE1TestMethodsE536isdirectlyapplicable,inanunmodiedform,onlytoalloys3,5,and7.ISO3815-1andISO3815-2aregenericmethods applied to zinc and zinc alloys. Each of the methods may be modied and formatted for the alloy to be assayed.An experienced chemist, using suitable
19、 and/or traceable standards along with valid quality assurance techniques, will be able to perform and validate the methods and demonstrate acceptable precision and accuracy. 9. Source Inspection 9.1 Source inspection shall be in compliance with the provisions of Specication B949, Section 7. 10. Rej
20、ection and Rehearing 10.1 Claims to be considered in accordance with the provisions of Specication B949, Section 8. 11. Investigation of Claims 11.1 Claims shall be investigated in accordance with the provisions of Specication B949, Section 8 TABLE 1 Chemical and North American Color Code Requiremen
21、ts A,B COLSPEC/colname=“col3“ align=“center“ Composition, % UNS Z34510 Slush Casting Alloy A UNS Z30500 Slush Casting Alloy B Color Code C Black/Red Black/Orange Element Copper 0.20.3 0.1 max Copper 0.20.3 0.1 max Aluminum 4.505.00 5.255.75 Aluminum 4.505.00 5.255.75 Lead 0.007 max 0.007 max Lead 0.
22、007 max 0.007 max Cadmium 0.005 max 0.005 max Cadmium 0.005 max 0.005 max Tin 0.005 max 0.005 max Tin 0.005 max 0.005 max Iron 0.100 max 0.100 max Iron 0.100 max 0.100 max Magnesium 0.010 max 0.010 max Magnesium 0.010 max 0.010 max Zinc Remainder Remainder Zinc Remainder Remainder A The following ap
23、plies to all specied limits in this table. For purposes of determining conformance with this specication, the observed or calculated value obtained from analysis shall be rounded off to the nearest unit in the last right-hand place of gures used in expressing the specied limit, in accordance with th
24、e rounding method of Practice E29. B UNS designations were established in accordance with Practice E527. C Refer to Practice B908. (Note: Colors indicated are for North American applications.) B79213 212. Settlement of Claims 12.1 Claims shall be settled in accordance with the provisions of Specicat
25、ion B949, Section 8. 13. Product Identication Marking and Packaging 13.1 Each slab, block, jumbo or ingot shall be marked for identication in accordance with Specication B949, Section 10. 14. Keywords 14.1 casting; casting alloys; gravity casting; permanent mold casting; slush casting; zinc; zinc al
26、loys SUMMARY OF CHANGES CommitteeB02hasidentiedthelocationofselectedchangestothisstandardsincethelastissue(B79212) that may impact the use of this standard. (Approved February 1, 2013.) (1)A section on Source Inspection was reinstated after it had been incorrectly removed. SUMMARY OF CHANGES Committ
27、ee B02 has identied the location of selected changes to this standard since the last issue (B792-09B79209) that may impact the use of this standard. (Approved May 1, 2012.) (1)Revisions have been made to Sections 2, 4, 6, 7, 8, 9, 10, 11, 12, and 13 to reference Specication B949 and delete certain p
28、ortions of these sections formerly a part of this standard. (2)ThetitlesofSections7,8,10,11,and12havebeenrevisedtobeinagreementwithastandardformatforSubcommitteeB02.04 standards. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item me
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31、e, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This standard is copyrighted byASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-
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