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1.1 This specification covers commercial zinc alloys in ingot form for remelting for the manufacture of dies and molds from the alloys as shown in Table 1.
1.2 This specification presents requirements for zinc alloys suitable for the production of sand cast or plaster cast forming dies for sheet metal stamping operations and plastic injection molding. Alloy A is intended for use in the fabrication of dies for sheet metal stamping under drop hammer and hydraulic pressure. Alloy B is a special purpose alloy of closely controlled composition and is primarily used in the manufacture of plastic injection molds.
1.3 This specification covers two zinc alloys which are specified and designated as follows:
|Z35543||Alloy A||Kirksite A|
|Z35542||Alloy B||Kirksite 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 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 identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
|Cadmium||0.005 max||0.003 max|
|Iron||0.100 max||0.075 max|
|Lead||0.007 max||0.003 max|
|Tin||0.005 max||0.001 max|
A The following applies to all specified limits in this table: For purposes of determining conformance with this specification, the observed value or calculated value obtained from analysis shall be rounded off “to the nearest unit” in the last right hand place of figures used in expressing the specified limit, in accordance with the 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.)
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B897 Specification for Configuration of Zinc and Zinc Alloy Jumbo Block and Half Block Ingot
B899 Terminology Relating to Non-ferrous Metals and Alloys
B908 Practice for the Use of Color Codes for Zinc Casting Alloy Ingot
B949 Specification for General Requirements for Zinc and Zinc Alloy Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys
ISO StandardsISO 3815-1 Zinc and zinc alloys--Part 1: Analysis of solid samples by optical emission spectrometry ISO 3815-2 Zinc and zinc alloys--Part 2: Analysis by inductively coupled plasma optical emission spectrometry
ICS Number Code 77.120.60 (Lead, zinc, tin and their alloys)
UNSPSC Code 30262900(Zinc ingots strips billets and coil)
ASTM B793-12, Standard Specification for Zinc Casting Alloy Ingot for Sheet Metal Forming Dies and Plastic Injection Molds, ASTM International, West Conshohocken, PA, 2012, www.astm.orgBack to Top