Standard Specification for Zinc Alloys in Ingot Form for Slush Casting

ABSTRACT
This specification covers two commercial zinc alloys, namely: Slush Casting Alloy A (Z34510) and Slush Casting Alloy B (Z30500), in ingot form for remelting for the manufacture of castings. This slush casting alloys are used primarily for the manufacture of hollow castings such as lighting fixtures, lamp bases, and small statues. The alloys may be made by any approved process, shall be of uniform quality, and shall be free from dross, slag, or other harmful contamination. The ingot shall be reasonably free of surface corrosion and adhering foreign matter. Casting alloys in black/red and black/orange color codes shall conform to the chemical composition requirements prescribed for copper, aluminum, lead, cadmium, tin, iron, magnesium, and zinc. The requirements for chemical composition verification such as number of samples, methods of sampling, and method of chemical analysis are given.
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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
31-Oct-2021
Drafting Committee
B02.04 - Zinc and Cadmium

Relations

Effective Date
01-Sep-2017
Effective Date
01-Oct-2016
Effective Date
01-Oct-2015
Effective Date
01-Jun-2015
Effective Date
01-Oct-2014
Effective Date
01-Oct-2014
Effective Date
01-Aug-2013
Effective Date
01-Feb-2013
Effective Date
01-May-2011
Effective Date
01-Oct-2009
Effective Date
01-Oct-2009
Effective Date
01-Oct-2009
Effective Date
01-Oct-2008
Effective Date
15-May-2008
Effective Date
01-May-2008

Overview

ASTM B792-16(2021) - Standard Specification for Zinc Alloys in Ingot Form for Slush Casting establishes requirements for two primary commercial zinc alloys, identified as Slush Casting Alloy A (UNS Z34510) and Slush Casting Alloy B (UNS Z30500), supplied in ingot form. These zinc alloys are specifically intended for remelting in the manufacturing of hollow castings, a process commonly used in the production of components such as lighting fixtures, lamp bases, and decorative statues. The standard ensures uniformity in quality and composition, supporting reliable performance and safety in downstream slush casting applications.

Key Topics

  • Applicable Zinc Alloys:
    The specification covers:

    • Slush Casting Alloy A (UNS Z34510)
    • Slush Casting Alloy B (UNS Z30500)
  • Intended Use:
    Zinc ingots are produced for slush casting processes, primarily for hollow castings, which require precise alloy compositions to ensure adequate mold filling, surface finish, and mechanical properties for decorative or lightweight products.

  • Quality Assurance:

    • Ingots must be free from dross, slag, and other harmful contamination.
    • Requirements include minimal surface corrosion and freedom from adhering foreign matter.
  • Chemical Composition:
    The standard outlines strict chemical composition limits for key elements such as copper, aluminum, lead, cadmium, tin, iron, magnesium, and zinc.

    • Alloy A is identified by a black/red color code.
    • Alloy B uses a black/orange color code.
  • Testing and Analysis:
    Reference is made to established ASTM and ISO methods for chemical analysis, including optical emission spectrometry and inductively coupled plasma techniques, ensuring globally recognized verification of alloy content.

  • Safety and Compliance:
    Users are responsible for assessing and mitigating safety, health, and environmental risks, referencing appropriate Safety Data Sheets and regulatory requirements.

Applications

ASTM B792-16(2021) zinc alloys play a vital role in:

  • Decorative and Functional Castings
    • Lighting fixtures and lamp bases benefit from the alloys’ excellent casting characteristics and surface finish, critical where both aesthetics and durability are important.
  • Hollow Artisanal Products
    • The alloys’ properties suit the production of small statues and ornaments, where light weight and detailed features are desired.
  • General Hardware and Fixtures
    • Other hollow castings, such as parts for the furniture and consumer goods industry, can exploit the material consistency and easy processability of these zinc alloys.

Proper selection and use of these slush casting alloys ensure high yields, reduced scrap, and conformity to international sourcing and quality standards.

Related Standards

Several associated standards are referenced in ASTM B792-16(2021) to support specification compliance and best practices:

  • ASTM B899: Terminology relating to non-ferrous metals and alloys.
  • ASTM B908: Color coding practices for zinc casting alloy ingots.
  • ASTM B949: General requirements for zinc and zinc alloy products.
  • ASTM E29, E88, E527, E536: Methods for rounding, sampling, numbering, and chemical analysis in zinc alloys.
  • ISO 3815-1 & ISO 3815-2: International methods for analysis of zinc and zinc alloys.

Adherence to these standards fosters product uniformity, regulatory compliance, and assurance of quality across international supply chains, benefiting manufacturers and end-users of zinc slush casting alloys.

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Frequently Asked Questions

ASTM B792-16(2021) is a technical specification published by ASTM International. Its full title is "Standard Specification for Zinc Alloys in Ingot Form for Slush Casting". This standard covers: ABSTRACT This specification covers two commercial zinc alloys, namely: Slush Casting Alloy A (Z34510) and Slush Casting Alloy B (Z30500), in ingot form for remelting for the manufacture of castings. This slush casting alloys are used primarily for the manufacture of hollow castings such as lighting fixtures, lamp bases, and small statues. The alloys may be made by any approved process, shall be of uniform quality, and shall be free from dross, slag, or other harmful contamination. The ingot shall be reasonably free of surface corrosion and adhering foreign matter. Casting alloys in black/red and black/orange color codes shall conform to the chemical composition requirements prescribed for copper, aluminum, lead, cadmium, tin, iron, magnesium, and zinc. The requirements for chemical composition verification such as number of samples, methods of sampling, and method of chemical analysis are given. 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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT This specification covers two commercial zinc alloys, namely: Slush Casting Alloy A (Z34510) and Slush Casting Alloy B (Z30500), in ingot form for remelting for the manufacture of castings. This slush casting alloys are used primarily for the manufacture of hollow castings such as lighting fixtures, lamp bases, and small statues. The alloys may be made by any approved process, shall be of uniform quality, and shall be free from dross, slag, or other harmful contamination. The ingot shall be reasonably free of surface corrosion and adhering foreign matter. Casting alloys in black/red and black/orange color codes shall conform to the chemical composition requirements prescribed for copper, aluminum, lead, cadmium, tin, iron, magnesium, and zinc. The requirements for chemical composition verification such as number of samples, methods of sampling, and method of chemical analysis are given. 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 Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM B792-16(2021) is classified under the following ICS (International Classification for Standards) categories: 77.150.60 - Lead, zinc and tin products. The ICS classification helps identify the subject area and facilitates finding related standards.

ASTM B792-16(2021) has the following relationships with other standards: It is inter standard links to ASTM E88-11(2017), ASTM B899-16, ASTM B899-15, ASTM E536-15, ASTM B908-14, ASTM B899-14, ASTM B949-13, ASTM B899-13, ASTM E88-11, ASTM B899-09e1, ASTM B899-09, ASTM B908-09, ASTM E29-08, ASTM B949-08, ASTM B908-03(2008). Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ASTM B792-16(2021) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: B792 −16 (Reapproved 2021)
Standard Specification for
Zinc Alloys in Ingot Form for Slush Casting
This standard is issued under the fixed designation B792; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 ASTM Standards:
B899 Terminology Relating to Non-ferrous Metals and Al-
1.1 This specification covers commercial zinc alloys in
loys
ingot form for remelting for the manufacture of castings from
B908 Practice for the Use of Color Codes for Zinc Casting
the alloys as specified and designated as shown in Table 1.
Alloy Ingot
1.2 Slush casting alloys are used primarily for the manufac-
B949 Specification for General Requirements for Zinc and
ture of hollow castings such as lighting fixtures, lamp bases,
Zinc Alloy Products
and small statues.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.3 This specification covers two zinc alloys which are
E88 Practice for Sampling Nonferrous Metals and Alloys in
specified and designated as follows:
Cast Form for Determination of Chemical Composition
UNS ASTM
E527 Practice for Numbering Metals and Alloys in the
Z34510 Slush Casting Alloy A
Z30500 Slush Casting Alloy B
Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc
1.4 The values stated in inch-pound units are to be regarded
Alloys
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only
2.3 ISO Standards:
and are not considered standard. ISO 3815-1 Zinc and zinc alloys — Part 1:Analysis of solid
samples by optical emission spectrometry
1.5 This standard does not purport to address all of the
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by
safety concerns, if any, associated with its use. It is the
inductively coupled plasma optical emission spectrometry
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate
3. Terminology
Safety Data Sheet (SDS) for this product/material as provided
by the manufacturer, to establish appropriate safety, health, 3.1 Terms shall be defined in accordance with Terminology
and environmental practices, and determine the applicability B899.
of regulatory limitations prior to use.
3.2 Definitions of Terms Specific to This Standard:
1.6 This international standard was developed in accor-
3.2.1 slush casting, n—a process for producing hollow
dance with internationally recognized principles on standard-
castings by pouring special molten alloys into a mold, allowing
ization established in the Decision on Principles for the
the metal in contact with the mold to solidify, and then pouring
Development of International Standards, Guides and Recom-
out the still molten metal in the center.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4. Ordering Information
4.1 See appropriate requirements in Specification B949.
2. Referenced Documents
2.1 The following documents of the issue in effect on date
5. Chemical Requirements
of order acceptance form a part of this specification to the
5.1 Limits—This alloy shall conform to the requirements as
extent referenced herein:
to chemical composition Table 1.
1 2
This specification is under the jurisdiction of ASTM Committee B02 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
B02.04 on Zinc and Cadmium. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Nov. 1, 2021. Published December 2021. Originally the ASTM website.
approved in 1988. Last previous edition approved in 2016 as B792 – 16. DOI: Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/B0792-16R21. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM In
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