1、Designation: B792 13B792 15Standard 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 revision. A
2、 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 alloysas specif
3、ied 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 Slush Casting A
4、lloy 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 address all
5、 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)(SDS) for this product/material as provided by the manufacturer, to establi
6、sh appropriate safety and health practices,and determine 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 Standards:
7、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 Specificati
8、onsE88 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 Zinc and zin
9、c 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 B899.3.2 Definitions of Terms Specific to Thi
10、s Standard:3.2.1 slush casting, na process for producing hollow castings by pouring special molten alloys into a mold, allowing the metalin contact with the mold to solidify, and then pouring out the still molten metal in the center.1 This specification is under the jurisdiction of ASTM Committee B0
11、2 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.04 on Zincand Cadmium.Current edition approved Feb. 1, 2013June 1, 2015. Published March 2013July 2015. Originally approved in 1988. Last previous edition approved in 20122013 asB792 12.B792 13. DOI: 10.1520/B0792
12、-13.10.1520/B0792-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.3 Available from American Natio
13、nal Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.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
14、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 Changes section appears at the end of this standar
15、dCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Ordering Information4.1 Orders for zinc alloy ingot under this specification shall include information as specified in Specification B949, Section 4.5. Materials and Manufacture5.1 T
16、he alloys 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 Requirement
17、s6.1 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 Specification B949, Section 5.2.7. Sampling for Chemical Analysis7.1 Sampling procedures shall be in compliance with the provis
18、ions of Specification B949, Section 6.8. Method of Chemical Analysis8.1 The determination of chemical composition shall be made in accordance 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
19、-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 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 experi
20、enced chemist, using suitableand/or traceable standards along with valid quality assurance techniques, will be able to perform and validate the methods and demonstrate acceptableprecision and accuracy.9. Source Inspection9.1 Source inspection shall be in compliance with the provisions of Specificati
21、on B949, Section 7.10. Rejection and Rehearing10.1 Claims to be considered in accordance with the provisions of Specification B949, Section 8.11. Investigation of Claims11.1 Claims shall be investigated in accordance with the provisions of Specification B949, Section 812. Settlement of Claims12.1 Cl
22、aims shall be settled in accordance with the provisions of Specification B949, Section 8.TABLE 1 Chemical and North American Color CodeRequirementsA,BComposition, %UNS Z34510Slush Casting Alloy AUNS Z30500Slush Casting Alloy BColor CodeC Black/Red Black/OrangeElementCopper 0.20.3 0.1 maxAluminum 4.5
23、05.00 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 maxMagnesium 0.010 max 0.010 maxZinc Remainder RemainderA The following applies to all specified limits in this table. For purposes ofdetermining conformance with this specification, the obse
24、rved or calculated valueobtained from analysis shall be rounded off “to the nearest unit” in the lastright-hand place of figures used in expressing the specified limit, in accordancewith the rounding method of Practice E29.B UNS designations were established in accordance with Practice E527.C Refer
25、to Practice B908. (Note: Colors indicated are for North Americanapplications.)B792 15213. Product Identification Marking and Packaging13.1 Each slab, block, jumbo or ingot shall be marked for identification in accordance with Specification B949, Section 10.14. Keywords14.1 casting; casting alloys; g
26、ravity casting; permanent mold casting; slush casting; zinc; zinc alloysSUMMARY OF CHANGESCommittee B02 has identified the location of selected changes to this standard since the last issue (B792 12)13) that may impact the use of this standard. (Approved FebruaryJune 1, 2013.)2015.)(1) Asection on S
27、ource Inspection was reinstated after it had been incorrectly removed.The definition for slush casting was addedto Terminology Section 3.Committee B02 has identified the location of selected changes to this standard since the last issue (B792 09)that may impact the use of this standard. (Approved Ma
28、y 1, 2012.)(1) Revisions have been made to Sections 2, 4, 6, 7, 8, 9, 10, 11, 12, and 13 to reference Specification B949 and delete certainportions of these sections formerly a part of this standard.(2) The titles of Sections 7, 8, 10, 11, and 12 have been revised to be in agreement with a standard
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