Standard Specification for ACuZinc5 (Zinc-Copper-Aluminum) Alloy Die Castings

ABSTRACT
This specification covers AcuZinc5, zinc-copper-aluminum alloy die castings. The metal used in the manufacture of die castings shall be zinc alloy of a specified chemical composition conforming to the specified requirements. Tensile, yield strength, elongation, and hardness properties shall be determined by tension and hardness tests. The die castings shall be of uniform quality, free of injurious discontinuities that will adversely affect their serviceability.
SCOPE
1.1 This specification covers ACuZinc5, zinc-copper-aluminum alloy die castings. (UNS Z46541).  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.

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Publication Date
31-Mar-2010
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ASTM B894-10e1 - Standard Specification for ACuZinc5 (Zinc-Copper-Aluminum) Alloy Die Castings
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
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Designation:B894 −10
StandardSpecification for
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ACuZinc5 (Zinc-Copper-Aluminum) Alloy Die Castings
This standard is issued under the fixed designation B894; 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.
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´ NOTE—Density units in Table X1.1 were editorially corrected in October 2011.
1. Scope* E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
1.1 This specification covers ACuZinc5, zinc-copper-
3 E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
aluminum alloy die castings. (UNS Z46541).
Alloys
1.2 The values stated in SI units are to be regarded as
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2.3 Federal Standards:
standard. No other units of measurement are included in this
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
standard.
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2.4 ISO Standards:
1.3 This standard does not purport to address all of the
ISO 3815-1 Zinc and zinc alloys — Part 1:Analysis of solid
safety concerns, if any, associated with its use. It is the
samples by optical emission spectrometry
responsibility of the user of this standard to become familiar
ISO 3815-2 Zinc and zinc alloys — Part 2: Analysis by
with all hazards including those identified in the appropriate
inductively coupled plasma optical emission spectrometry
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Material Safety Data Sheet (MSDS) for this product/material
2.5 Military Standard:
as provided by the manufacturer, to establish appropriate
MIL-P-116 Methods of Preservation
safety and health practices, and determine the applicability of
MIL-STD-129 Marking for Shipment and Storage
regulatory limitations prior to use. 8
2.6 NADCA Standard:
NADCA Product Specification Standards for Die Castings
2. Referenced Documents
2.1 The following documents of the issue in effect on date 3. Terminology
of order acceptable form a part of this specification to the
3.1 Terms shall be defined in accordance with Terminology
extent referenced herein:
B899.
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2.2 ASTM Standards:
3.2 Definitions of Terms Specific to This Standard:
B892 Specification forACuZinc5 (Zinc-Copper-Aluminum)
3.2.1 die casting, n—a casting process in which molten
Alloy in Ingot Form for Die Castings
metal is injected under high velocity and pressure into a metal
B899 Terminology Relating to Non-ferrous Metals and Al-
die and solidified, also a product produced by such a process.
loys
Alternately known as pressure die casting.
B949 Specification for General Requirements for Zinc and
Zinc Alloy Products
4. Ordering Information
E10 Test Method for Brinell Hardness of Metallic Materials
4.1 Orders for die castings shall include the following basic
E29 Practice for Using Significant Digits in Test Data to
information in addition to the information specified in Speci-
Determine Conformance with Specifications
fication B949, Section 4:
4.1.1 Part name and number,
4.1.2 Alloy (Table 1), and
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ACuZinc and ACuZinc5 are registered trade names of the General Motors
Corporation.
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This specification is under the jurisdiction of ASTM Committee B02 on
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Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
B02.04 on Zinc and Cadmium. 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
Current edition approved April 1, 2010. Published April 2010. Originally www.access.gpo.gov.
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approved in 1999. Last previous edition approved in 2009 as B894 - 09. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/B0894-10E01. 4th Floor, New York, NY 10036, http://www.ansi.org.
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See Footnote B in Table 1. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.dodssp.daps.mil.
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Standards volume information, refer to the standard’s Document Summary page on Available from North American Die Casting Association 241 Holbrook Dr
the ASTM website. Wheeling, Illinois 60090-5809, http://www.diecasting.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
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B894−10
4.1.3 Drawing of die casting, when required, giving all 6.2 For normal inspection purposes, an inspection lot shall
necessary dimensions and showing latest revisions and allow- consist of the production from each die during a single
ances for machining, if any. Lo
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