ASTM B792-12 - 1.5.2012
 
1. Scope

1.1 This specification covers commercial zinc alloys in ingot form for remelting for the manufacture of castings from the alloys as 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, and small statues.

1.3 This specification covers two zinc alloys which are specified and designated as follows:

UNS

ASTM

Z34510

Slush Casting Alloy A

Z30500

Slush Casting Alloy 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 Z34510
Slush Casting Alloy A
UNS Z30500
Slush Casting Alloy B

Color CodeC

Black/Red

Black/Orange

Element

Copper

0.2–0.3

0.1 max

Aluminum

4.50–5.00

5.25–5.75

Lead

0.007 max

0.007 max

Cadmium

0.005 max

0.005 max

Tin

0.005 max

0.005 max

Iron

0.100 max

0.100 max

Magnesium

0.010 max

0.010 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 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

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

ISO 3815-2

ISO 3815-1

Zinc and zinc alloys Part 1: Analysis of solid samples by optical emission spectrometry

B949-23

Standard Specification for General Requirements for Zinc and Zinc Alloy Products

E536-23

Standard Test Methods for Chemical Analysis of Zinc and Zinc Alloys

E527-23

Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

E88-25

Standard Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition

B899-25

Standard Terminology Relating to Non-ferrous Metals and Alloys

B908-22

Standard Practice for the Use of Color Codes for Zinc Casting Alloy Ingot