1、Designation:B79209 Designation: B792 12Standard Specification forZinc Alloys in Ingot Form for Slush Casting1This standard is issued under the fixed designation B792; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers commercial zinc alloys in ingot form for remelting for the manufacture of castings from the all
3、oysas specified and designated as shown in Table 1.1.2 Slush casting alloys are used primarily for the manufacture of hollow castings such as lighting fixtures, lamp bases, andsmall statues.1.3 This specification covers two zinc alloys which are specified and designated as follows:UNS ASTMZ34510 Slu
4、sh Casting Alloy AZ30500 Slush Casting Alloy B1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.5 This standard does not purport to
5、 address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard 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
6、establish appropriate safety and health practices, anddetermine the applicability of regulatory limitations prior to use.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 Sta
7、ndards:2B899 Terminology 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 Spec
8、ifications E88E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys2.3 ISO Standards:3ISO 3815-1 Z
9、inc and zinc alloys Part 1: Analysis of solid samples by optical emission spectrometryISO 3815-2 Zinc and zinc alloys Part 2: Analysis by inductively coupled plasma optical emission spectrometry3. Terminology3.1 Terms shall be defined in accordance with Terminology B899.4. Ordering Information4.1Ord
10、ers 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 manufacturers standard,1This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility o
11、f Subcommittee B02.04 on Zincand Cadmium.Current edition approved Oct.May 1, 2009.2012. Published November 2009.July 2012. Originally approved in 1988. Last previous edition approved in 20082009 asB792 089. DOI: 10.1520/B0792-09.10.1520/B0792-12.2For referenced ASTM standards, visit the ASTM website
12、, 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 on the ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http
13、:/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 previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users c
14、onsult 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 standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohoc
15、ken, PA 19428-2959, United States.4.1.4Specification number and date,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 al
16、loys may be made by any approved process.5.2 The material covered by this specification shall be of uniform quality and shall be free from dross, slag, or other harmfulcontamination. The ingot shall also be reasonably free of surface corrosion and adhering foreign matter.6. Chemical Requirements6.1
17、LimitsThis alloy shall conform to the requirements as to chemical composition prescribed in Table 1. Conformance shallbe determined by the producer by analyzing samples taken at the time the ingots are made. If the producer has determined thechemical composition of the metal during the course of man
18、ufacture, he shall not be required to sample and analyze the finishedproduct.6.2In case of dispute, the following requirements shall apply:6.2.1Number of SamplesSamples for verification of chemical composition shall be taken as follows:6.2.1.1If the ingots are shipped in carload lots of the same all
19、oy, not less than five ingots shall be taken at random from thecarload for sampling. If the shipment is less than a carload lot, one sample ingot shall be taken for each 10000 lb (4500 kg) orfraction thereof. When it is deemed necessary, a sample may be taken from each melt of 1000 lb (450 kg) or mo
20、re.6.3Methods of SamplingSamples from ingots for determination of chemical composition shall be taken in accordance with oneof 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
21、to obtain weight of prepared sample not less 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 suitabl
22、e specimens for either spectrographic or chemical analysis.6.3.3Sample may also be in the form of a separately cast spectrographic specimen taken from the same pour used to cast theingot.6.4Method of AnalysisThe determination of chemical composition shall be made in accordance with suitable chemical
23、 (TestMethods E536), suitable spectrochemical methods ISO 3815-1 or ISO 3815-2, or other methods. In case of dispute, the resultsshould preferably be secured by Test Methods E536, ISO 3815-1 or ISO 3815-2 and shall be the basis of acceptance.6.2 Chemical requirement procedures shall be in compliance
24、 with the provisions of Specification B949, Section 5.2.7. Source Inspection7.1If the purchaser desires that his representative inspect or witness the inspection and testing of the product prior to shipment,such agreement shall be made by the purchaser and producer or supplier as part of the contrac
25、t 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 reasonable facilities to satisfy him that the product meets the requirements of this specification. Inspection andTABLE 1 Chemical a
26、nd North American Color CodeRequirementsA,BComposition, %UNS Z34510Slush Casting Alloy AUNS Z30500Slush Casting Alloy BColor CodeCBlack/Red Black/OrangeElementCopper 0.20.3 0.1 maxAluminum 4.505.00 5.255.75Lead 0.007 max 0.007 maxCadmium 0.005 max 0.005 maxTin 0.005 max 0.005 maxIron 0.100 max 0.100
27、 maxMagnesium 0.010 max 0.010 maxZinc Remainder RemainderAThe following applies to all specified limits in this table. For purposes ofdetermining conformance with this specification, the observed or calculated valueobtained from analysis shall be rounded off “to the nearest unit” in the lastright-ha
28、nd place of figures used in expressing the specified limit, in accordancewith the rounding method of Practice E29.BUNS designations were established in accordance with Practice E527.CRefer to Practice B908. (Note: Colors indicated are for North Americanapplications.)B792 122tests shall be conducted
29、so there is no unnecessary interference with the producers operations. Sampling for Chemical Analysis7.1 Sampling procedures shall be in compliance with the provisions of Specification B949, Section 6.8. Method of Chemical Analysis8.1 The determination of chemical composition shall be made in accord
30、ance with Test Methods E536, or ISO 3815-1, or ISO3815-2 or other methods. In case of dispute, the results secured by Test Methods E536, or ISO 3815-1, or ISO 3815-2 shall bethe basis of acceptance.NOTE 1Test Methods E536 is directly applicable, in an unmodified form, only to alloys 3, 5, and 7. ISO
31、 3815-1 and ISO 3815-2 are generic methodsapplied to zinc and zinc alloys. Each of the methods may be modified and formatted for the alloy to be assayed. An experienced chemist, using suitableand/or traceable standards along with valid quality assurance techniques, will be able to perform and valida
32、te the methods and demonstrate acceptableprecision and accuracy.9. 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
33、results of the test, the producer or supplier maymake claim for 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.9.Identification
34、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 Color Code for the alloy as per N
35、orthAmerican Requirementsin Practice B908.9.1 Claims to be considered in accordance with the provisions of Specification B949, Section 8.10. Preparation for Delivery10.1PackagingUnless otherwise specified, the ingot shall be packaged to provide adequate protection during normal handlingand transport
36、ation. Each package shall contain only one alloy unless otherwise agreed upon. Investigation of Claims10.1 Claims shall be investigated in accordance with the provisions of Specification B949, Section 811. Settlement of Claims11.1 Claims shall be settled in accordance with the provisions of Specific
37、ation B949, Section 8.12. Product Identification Marking and Packaging12.1 Each slab, block, jumbo or ingot shall be marked for identification in accordance with Specification B949, Section 10.13. Keywords113.1 casting; casting alloys; gravity casting; permanent mold casting; slush casting; zinc; zi
38、nc alloysSUMMARY OF CHANGESCommittee B02 has identified the location of selected changes to this standard since the last issue (B792 - 089)that may impact the use of this standard. (Approved OctoberMay 1, 2009.) 2012.)(1)The reference to Test Methods E47 as a method to analyze for tin only has been
39、removed.Committee B02 has identified the location of selected changes to this standard since the last issue(B792-01(2005)1) that may impact the use of this standard. (Approved November 1, 2008.) ) Revisions havebeen made to Sections 2, 4, 6, 7, 8, 9, 10, 11, 12, and 13 to reference Specification B94
40、9 and delete certainportions of these sections formerly a part of this standard.(1)Revisions have been made to Sections 2.3 and 6.4 to add analytical spectrochemical methods ISO3815-1 and ISO3815-2.2) The titles of Sections 7, 8, 10, 11, and 12 have been revised to be in agreement with a standard fo
41、rmat 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. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the
42、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 every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of
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44、ke 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 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/).B792 123
