ASTM B969/B969M-18e1
(Specification)Standard Specification for Aluminum-Alloy Castings Produced by Squeeze Casting, and the Semi-Solid Thixocast and Rheocast Casting Processes
Standard Specification for Aluminum-Alloy Castings Produced by Squeeze Casting, and the Semi-Solid Thixocast and Rheocast Casting Processes
ABSTRACT
This specification covers the material, chemical and mechanical requirements for aluminum-alloy castings produced by the thixocast, rheocast, semi-solid and squeeze casting processes. It does not apply to castings used in aerospace applications. Castings shall conform to the chemical composition limits and tensile properties specified for each alloy designation, and those produced for governmental or military agencies, or both, shall additionally adhere to specified material and foundry control requirements. Castings shall also pass quality checks based on the following attributes: imperfections; internal soundness; pressure tightness; fillets, ribs, and corners; ejector pins, pin marks, pin flash, and flash removal; casting flash removal; surface finish; die cast lettering and ornamentation; machining stock allowances; and workmanship. Heat treatment and repair recommendations are also included herein.
SCOPE
1.1 This specification covers aluminum-alloy castings, produced by Squeeze Casting, and the Semi-Solid Thixocast and Rheocast casting processes, designated as shown in Table 1.
1.2 This specification is for aluminum-alloy squeeze castings, and semi-solid Thixocast and Rheocast castings used in general purpose applications. It may not address the mechanical properties, integrity testing, and verification required for highly loaded or safety critical applications.
1.3 Alloy and temper designations are in accordance with ANSI H35.1/H35.1 (M).
1.4 Unless the order specifies the “M” specification designation, the material shall be furnished to the inch-pound units.
1.5 For acceptance criteria for inclusion of new aluminum and aluminum alloys and their properties in this specification, see Annex A1 and Annex A2.
1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.7 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.8 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
Relations
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.
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Designation: B969/B969M − 18
Standard Specification for
Aluminum-Alloy Castings Produced by Squeeze Casting,
and the Semi-Solid Thixocast and Rheocast Casting
1
Processes
This standard is issued under the fixed designation B969/B969M; 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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ε NOTE—Footnote C of Tables X2.2, X2.4, and X2.6 was revised editorially in August 2018.
1. Scope* Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers aluminum-alloy castings, pro-
Barriers to Trade (TBT) Committee.
duced by Squeeze Casting, and the Semi-Solid Thixocast and
Rheocast casting processes, designated as shown in Table 1.
2. Referenced Documents
1.2 This specification is for aluminum-alloy squeeze
2.1 The following documents of the issue in effect on the
castings, and semi-solid Thixocast and Rheocast castings used
date of casting purchase form a part of this specification to the
in general purpose applications. It may not address the me-
extent referenced herein:
chanical properties, integrity testing, and verification required
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2.2 ASTM Standards:
for highly loaded or safety critical applications.
B179 Specification for Aluminum Alloys in Ingot and Mol-
1.3 Alloy and temper designations are in accordance with
ten Forms for Castings from All Casting Processes
ANSI H35.1/H35.1 (M).
B275 Practice for Codification of Certain Zinc, Tin and Lead
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1.4 Unless the order specifies the “M” specification
Die Castings (Withdrawn 2020)
designation, the material shall be furnished to the inch-pound B557 Test Methods for Tension Testing Wrought and Cast
units. Aluminum- and Magnesium-Alloy Products
B557M Test Methods for Tension Testing Wrought and Cast
1.5 For acceptance criteria for inclusion of new aluminum
Aluminum- and Magnesium-Alloy Products (Metric)
and aluminum alloys and their properties in this specification,
B660 Practices for Packaging/Packing of Aluminum and
see Annex A1 and Annex A2.
Magnesium Products
1.6 The values stated in either SI units or inch-pound units
B666/B666M Practice for Identification Marking of Alumi-
are to be regarded separately as standard. The values stated in
num and Magnesium Products
each system may not be exact equivalents; therefore, each
B881 Terminology Relating to Aluminum- and Magnesium-
system shall be used independently of the other. Combining
Alloy Products
values from the two systems may result in non-conformance
B917/B917M Practice for Heat Treatment of Aluminum-
with the standard.
Alloy Castings From All Processes
1.7 This standard does not purport to address all of the
B985 Practice for Sampling Aluminum Ingots, Billets, Cast-
safety concerns, if any, associated with its use. It is the
ings and Finished or Semi-Finished Wrought Aluminum
responsibility of the user of this standard to establish appro-
Products for Compositional Analysis
priate safety, health, and environmental practices and deter-
D3951 Practice for Commercial Packaging
mine the applicability of regulatory limitations prior to use.
E8/E8M Test Methods for Tension Testing of Metallic Ma-
1.8 This international standard was developed in accor-
terials
dance with internationally recognized principles on standard-
E23 Test Methods for Notched Bar Impact Testing of Me-
ization established in the Decision on Principles for the
tallic Materials
1 2
This test method is under the jurisdiction of ASTM Committee B07 on Light For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Aluminum Alloy Ingots and Castings. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 15, 2018. Published June 2018. Originally the ASTM website.
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approved in 2009. Last previous edition approved in 2017 as B969/B969M – 17. The last approved version of this historical standard is referenced on
DOI: 10.1520/B0969_B0969M-18E01. www.astm.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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B969/B969M − 18
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A,B,C,D
TABLE 1 Chemical Composition Limits
E
OTHERS
I
DESIGNATION Si Fe Cu Mn M
...
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