ASTM B793-16 (R2021) pdf free download.Standard Specification for Zinc Casting Alloy Ingot for Sheet Metal Forming Dies and Plastic Injection Molds.
1.1 This specification covers commercial zinc alloys in ingot torm 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:
UNS ASTM Traditional
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 ifs use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the inanufacrurer to establish appropriate safer4; health, and environmental practices. and determine tile applicability of regulatory liniltations prior to use.
1 .6 This international standard was developed in accordance with internationally recognized principles on standardiZutioll established in the Decision on Principles for the Developmnent of International Standards, Guides and Reconmnendcaions Issue(the World Trade Organ izalioll Technial Barriers to Trade (TBT).
2. Referenced Docunients
2.1 The following documents of the issue in effect on date of order acceptance form a part of this specification to the extent referenced herein:
2.2 ASTM Standards.
B897 Specification for Configuration of Zinc and Zinc Alloy Jumbo, Block. Half Block, and Slab 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 [)igits 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
2.3 ISO Standards:
ISO 3815-1 Zinc and zinc alloys—Part 1: Analysis of solid samples by optical emission spectrometry
ISO 38 15-2 Zinc and zinc alloys—Part 2: Analysis by inductively coupled plasma optical emission spectrometry
3. Terminology
3.1 Terms shall he defined in accordance with Terminology B899.ASTM B793-16 pdf download.