ASTM B989-22

Standard Specification for High Fluidity (HF) Zinc-Aluminum Alloy in Ingot Form for Thin Wall Die Castings

ABSTRACT
This specification covers the chemical requirements for commercial high fluidity zinc-aluminum alloys in ingot form for remelting for the manufacture of thin wall pressure die castings. A table designates and specifies the requirements for aluminum, magnesium, copper, iron, lead, cadmium, tin, and zinc. The ingots shall conform to the requirements as to chemical composition as prescribed in this table. The specification also covers methods for the determination of chemical composition; dimensions, mass, and permissible variation; and shapes and sizes.
SCOPE
1.1 This specification covers a commercial zinc-aluminum alloy in ingot form for remelting for the manufacture of thin wall pressure die castings as designated and specified in Table 1.  
1.2 Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described in Appendix X1.  
1.3 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.  
1.4 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.  
1.5 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-Mar-2022
• ICS: 77.120.10 - Aluminium and aluminium alloys
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.04 - Zinc and Cadmium

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:B989 −22
Standard Specification for
High Fluidity (HF) Zinc-Aluminum Alloy in Ingot Form for
1
Thin Wall Die Castings
This standard is issued under the fixed designation B989; 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.
2
1. Scope* 2.2 ASTM Standards:
B897 Specification for Configuration of Zinc and ZincAlloy
1.1 This specification covers a commercial zinc-aluminum
Jumbo, Block, Half Block, and Slab Ingot
alloy in ingot form for remelting for the manufacture of thin
B899 Terminology Relating to Non-ferrous Metals and Al-
wall pressure die castings as designated and specified in Table
loys
1.
B908 Practice for the Use of Color Codes for Zinc Casting
1.2 Systems of nomenclature used to designate zinc and
Alloy Ingot
zinc-aluminum (ZA) alloys used for casting are described in
B949 Specification for General Requirements for Zinc and
Appendix X1.
Zinc Alloy Products
E29 Practice for Using Significant Digits in Test Data to
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical Determine Conformance with Specifications
E527 Practice for Numbering Metals and Alloys in the
conversions to SI units that are provided for information only
and are not considered standard. Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc
1.4 This standard does not purport to address all of the
Alloys
safety concerns, if any, associated with its use. It is the
3
2.3 ISO Standards:
responsibility of the user of this standard to become familiar
ISO 3815–1 Zinc and zinc alloys — Part 1:Analysis of solid
with all hazards including those identified in the appropriate
samples by optical emission spectrometry
Safety Data Sheet (SDS) for this product/material as provided
ISO 3815–2 Zinc and zinc alloys — Part 2: Analysis by
by the manufacturer, to establish appropriate safety, health,
inductively coupled plasma optical emission spectrometry
and environmental practices, and determine the applicability
of regulatory limitations prior to use.
3. Terminology
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard- 3.1 Terms shall be defined in accordance with Terminology
ization established in the Decision on Principles for the
B899.
Development of International Standards, Guides and Recom-
3.2 Definitions of Terms Specific to This Standard:
mendations issued by the World Trade Organization Technical
3.2.1 die casting, n—a casting process in which molten
Barriers to Trade (TBT) Committee.
metal is injected under high velocity and pressure into a metal
die and solidified, also a product produced by such a process;
2. Referenced Documents
alternately known as pressure die casting.
2.1 The following documents of the issue in effect on date
3.2.2 high fluidity alloy, n—a zinc alloy by nature of its
of order acceptance form a part of this specification to the
composition is capable of producing die castings with thinner
extent referenced herein:
wall sections compared to typical die cast alloys; often less
than 0.012 in. (0.30 mm) in thickness.
3.2.3 thin wall die casting, n—a die casting with wall
sections that can be less than 0.012 in. (0.30 mm) in thickness.
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 [e-mail]. 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 April 1, 2022. Published May 2022. Originally the ASTM website.
3
approved in 2014. Last previous edition approved in 2019 as B989 – 19a. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/B0989-22. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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B989−22
TABLE 1 Chemical and North American Color Code
7.3 For purposes of determining compliance with specified
Requirements
composition limits as given in Table 1, an observed or
A,B,C
Common Name HF Alloy
calculated value sha
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B989 − 19a B989 − 22
Standard Specification for
High Fluidity (HF) Zinc-Aluminum Alloy in Ingot Form for
1
Thin Wall Die Castings
This standard is issued under the fixed designation B989; 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*
1.1 This specification covers a commercial zinc-aluminum alloy in ingot form for remelting for the manufacture of thin wall
pressure die castings as designated and specified in Table 1.
1.2 Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described in Appendix
X1.
1.3 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.
1.4 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.
1.5 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.
2. Referenced Documents
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
2.2 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 Digits in Test Data to Determine Conformance with Specifications
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys
1
This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.04 on Zinc
and Cadmium.
Current edition approved Nov. 1, 2019April 1, 2022. Published December 2019May 2022. Originally approved in 2014. Last previous edition approved in 2019 as
B989 – 19.B989 – 19a. DOI: 10.1520/B0989-19a.10.1520/B0989-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B989 − 22
TABLE 1 Chemical and North American Color Code
Requirements
A,B,C
Common Name HF Alloy
UNS Z33511
D
Color Code Red/Brown
A,B,C
Element Composition %
Aluminum 4.4–4.7
Magnesium 0.007–0.012
Copper, max 0.035
Iron, max 0.03
Lead, max 0.003
Cadmium, max 0.002
Tin, max 0.001
E
Zinc Remainder
A
Zinc alloy ingots for die casting may contain nickel, chromium, silicon, and
manganese in amounts of up to 0.01, 0.01, 0.01, and 0.01 %, respectively. No
harmful effects deleterious effects on alloy performance have ever been noted due
to the presence of these elements in up to these concentrations and, therefore,
analyses are not required for these elements.
B
The last digit of a UNS number differentiates between alloys of similar
composition. UNS designations for ingot and casting versions of an alloy were not
assigned in the same sequence for alloys.
C
For purposes of acceptance and rejection, the observed value or calculated
value obtained from analysis should be rounded to the nearest unit in the last
right-hand place of figures, used in expressing the specified limit, in accordance
with
...