ASTM B793-12


Format: PDF      In Stock



ASTM B793-12


Standard Specification for Zinc Casting Alloy Ingot for Sheet Metal Forming Dies and Plastic Injection Molds
standard by ASTM International, 05/01/2012

Format: PDF      In Stock



NOTE: Our website provide PDF immediately download, sometimes when the payment is processed and you did not receive the file, please feel free to connect with us.


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:

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 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.

TABLE 1 Chemical and North American Color Code RequirementsA,B

Composition, %
UNS Z35543
Alloy A
Kirksite A
UNS Z35542
Alloy B
Kirksite B
Color CodeC Green/Red Green/Black
Aluminum 3.54.5 3.94.3
Cadmium 0.005 max 0.003 max
Copper 2.53.5 2.52.9
Iron 0.100 max 0.075 max
Lead 0.007 max 0.003 max
Magnesium 0.020.10 0.020.05
Tin 0.005 max 0.001 max
Zinc Remainder Remainder

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.)

Product Details

Number of Pages:
File Size:
1 file , 71 KB
Redline File Size:
2 files , 130 KB