ASTM B1013-22

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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: B1013 − 20 B1013 − 22
Standard Specification for
High Fluidity (HF) Zinc-Aluminum Alloy Thin Wall Die
Castings
This standard is issued under the fixed designation B1013; 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 Scope*
1.1 This specification covers commercial zinc, zinc-aluminum castings and continuous cast bar stock, 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 Material Safety Data
Sheet (MSDS) 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 ASTM Standards:
B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B899 Terminology Relating to Non-ferrous Metals and Alloys
B949 Specification for General Requirements for Zinc and Zinc Alloy Products
E8E8/E8M Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E23 Test Methods for Notched Bar Impact Testing of Metallic Materials
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)
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 April 1, 2020April 1, 2022. Published April 2020April 2022. Originally approved in 2020. Last previous edition approved in 2020 as B1013 – 20.
DOI: 10.1520/B1013-20.10.1520/B1013-22.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. 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
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B1013 − 22
TABLE 1 Chemical Requirements
A, B, C
Common Name HF Alloy
UNS to be assigned
UNS Z33512
A, B, C
Element Composition %
Aluminum 4.3–4.7
Magnesium 0.005–0.012
Copper, max 0.035
Iron, max 0.03
Lead, max 0.003
Cadmium, max 0.002
Tin, max 0.001
D
Zinc Remainder
A
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 the rounding procedure prescribed in Practice E29.
B
Zinc alloy castings may contain nickel, chromium, silicon, and manganese in
amounts of 0.02, 0.02, 0.035, and 0.06 %, respectively. No harmful effects
deleterious effects on alloy performance have ever been noted due to the
presence of these elements in these concentrations and, therefore, analyses are
not required for these elements.
C
The UNS designations were established in accordance with Practice E527. The
last digit of a UNS number differentiates between alloys of similar composition. The
UNS designations for ingot and casting versions of an alloy were not assigned in
the same sequence for all alloys.
D
Determined arithmetically by difference.
E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys
2.3 North American Die Casting Association (NADCA):NADCA Standards:
NADCA Product Specification Standards for Die Castings
2.4 ISO Standards:
ISO 3815–1 Zinc and zinc alloys — Part 1: Analysis of solid samples by optical emission spectrometry
ISO 3815–2 Zinc and zinc alloys — Part 2: Analysis by inductively coupled plasma optical emission spectrometry
2.5 Military Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
MIL-STD-129 Military Marking for Shipment and Storage
MIL-STD-2073-1D Marking for Shipment and Storage (Military Agencies)
3. Terminology
3.1 Terms shall be defined in accordance with Terminology B899.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 die casting, n—a casting process in which molten metal is injected under high velocity and pressure into a metal die and
solidified, also a product produced by such a process; alternately known as pressure die casting.
3.2.2 high fluidity alloy, n—a zinc alloy by nature of its composition is capable of producing die castings with thinner 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.
4. Ordering Information
4.1 See Specification B949.
Available from North American Die Casting, Assn.,Casting Association, 2000 5th Ave., River Grove, IL 60171, http://www.diecasting.org.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
B1013 − 22
5. Chemical Requirements
5.1 The ingots shall conform to the requirements as to chemical composition as prescribed in Table 1. Conformance shall be
determined in accordance with Specification B949.
6. Sampling for Determination of Chemical Composition (see Specification B949)
6.1 When a detailed chemical analysis is required with a shipment, it shall be called for in the contract or purchase order.
6.1.1 If the producer’s or supplier’s method of composition control is acceptable, sampling for chemical composition may be
waived at the discretion of the purchaser.
6.2 Number of Samples—When required, samples for determination of chemical composition shall be taken to represent the
following:
6.2.1 A sample shall be taken from each of two representative castings selected from each lot defined in 16.2.
6.3 Methods of Sampling—See Specification B949.
7. Methods for Chemical Analysis
7.1 The determination of chemical composition shall be made in accordance with Specification B949.
7.2 In case of dispute, the results secured by an approved method (or combination of approved methods), or by a method agreed
upon by both parties, shall be the basis of acceptance.
7.2.1 Approved methods include: Test Methods E536, ISO 3815–1, or ISO 3815–2.
7.2.1.1 Test Methods E536 is generally applicable but must be slightly modified to cover the higher Al range. ISO 3815–1 and
ISO 3815–2 are generic methods applied to zinc and zinc alloys. Each of the methods may be modified and formatted for the alloy
to be assayed. An experienced chemist, using suitable or traceable reference materials, or both, along with valid quality assurance
techniques, will be able to perform and validate the methods and demonstrate acceptable precision and accuracy.
7.3 For purposes of determining compliance with specified composition limits as given in Table 1, an observed or calculated value
shall be rounded to the nearest unit in the last right-hand place of figures shown in Table 1, in accordance with the rounding method
of Practice E29.
8. Physical Properties, Mechanical Properties, and Tests
8.1 Unless specified in the contract or purchase order, or specified on the detail drawing, acceptance of castings under this
specification shall not depend on mechanical properties determined by tension or impact tests.
8.1.1 Appendix X2 shows typical mechanical properties, determined on separately cast test bars produced under carefully
controlled conditions.
8.1.2 While these typical mechanical properties of separately cast test bars are useful for comparing the relative properties of
various casting alloys, they should not be used to establish design limits or acceptance criteria.
8.1.3 If tension or impact tests are made on separately cast test bars, test specimens conforming to the dimensions shown in Test
Methods B557 (the figure entitled, Standard Tension Test Specimen for Die Castings), Test Methods E8E8/E8M (the figure entitled
Standard Test Specimen for Cast Iron), and of Test Methods E23 (the figure entitled, Charpy (Simple-Beam) Impact Test
Specimens, Types A, B, and C) shall be used, and process operating variables shall be optimized for the specific mold or die being
used.
8.1.4 When specified in the contract or purchase order, castings shall withstand proof tests without failure as defined by agreement
between the purchaser and the producer or supplier.
B1013 − 22
8.2 Appendix X3 shows typical physical properties of zinc and zinc-aluminum (ZA) casting alloys and does not constitute a part
of this specification but is provided for informational purposes only.
9. Dimensions, Mass, and Permissible Variations
9.1 Permissible variations in dimensions shall be within the limits specified on the drawings or in the contract or purchase order.
9.1.1 For die castings, any dimension
...