ASTM B179-11e1
(Specification)Standard Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
Standard Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
ABSTRACT
This specification covers commercial aluminum alloys in ingot form for remelting and molten form for the manufacture of castings. The material shall be of uniform quality and shall be free from dross, slag, and other harmful contamination. The ingots or molten metal shall conform to the chemical composition limits specified.
SCOPE
1.1 This specification covers commercial aluminum alloys in ingot form for remelting and molten form for the manufacture of castings. The specific gravity of these alloys does not exceed 3.0 and they are designated as shown in Table 1.Note 1—Throughout this specification the use of “ingot” in a general sense includes sow, T-bar, T-ingot, and pig.
1.2 Alloy designations are in accordance with ANSI H35.1/H35.1(M). The equivalent Unified Numbering System alloy designations are in accordance with Practice E527. Note 2—Supplementary data pertaining to the alloys covered by this specification when used in the form of castings are given in Specifications B26/B26M, B85/B85M, B108/B108M, B618/B618M, B686/B686M, and B955/B955M.
1.3 Unless the order specifies the “M” specification designation, the material shall be furnished to the inch-pound units.
1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A1.
1.5 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.5.1 Exception—Certain SI units appear in brackets in 7.1.2.
1.6 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.
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Designation: B179 −11
StandardSpecification for
Aluminum Alloys in Ingot and Molten Forms for Castings
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from All Casting Processes
This standard is issued under the fixed designation B179; 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.
This standard has been approved for use by agencies of the Department of Defense.
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ε NOTE—Table 1 was corrected editorially in August 2013.
1. Scope* 2. Referenced Documents
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1.1 This specification covers commercial aluminum alloys 2.1 ASTM Standards:
in ingot form for remelting and molten form for the manufac- B26/B26M Specification for Aluminum-Alloy Sand Cast-
ture of castings. The specific gravity of these alloys does not ings
exceed 3.0 and they are designated as shown in Table 1. B85/B85M Specification for Aluminum-Alloy Die Castings
B108/B108M Specification for Aluminum-Alloy Permanent
NOTE 1—Throughout this specification the use of “ingot” in a general
Mold Castings
sense includes sow, T-bar, T-ingot, and pig.
B618/B618M Specification forAluminum-Alloy Investment
1.2 Alloy designations are in accordance withANSI H35.1/
Castings
H35.1(M). The equivalent Unified Numbering System alloy
B666/B666M Practice for Identification Marking of Alumi-
designations are in accordance with Practice E527.
num and Magnesium Products
B686/B686M Specification for Aluminum Alloy Castings,
NOTE 2—Supplementary data pertaining to the alloys covered by this
High-Strength
specification when used in the form of castings are given in Specifications
B955/B955M SpecificationforAluminum-AlloyCentrifugal
B26/B26M, B85/B85M, B108/B108M, B618/B618M, B686/B686M, and
B955/B955M.
Castings
B969 Specification for Aluminum-Alloy Castings Produced
1.3 Unless the order specifies the “M” specification
by the Squeeze Casting, Thixocast and Rheocast Semi-
designation, the material shall be furnished to the inch-pound
Solid Casting Processes
units.
E29 Practice for Using Significant Digits in Test Data to
1.4 For acceptance criteria for inclusion of new aluminum
Determine Conformance with Specifications
and aluminum alloys in this specification, see Annex A1.
E34 Test Methods for Chemical Analysis of Aluminum and
Aluminum-Base Alloys
1.5 The values stated in inch-pound units are to be regarded
E527 Practice for Numbering Metals and Alloys in the
as standard. No other units of measurement are included in this
Unified Numbering System (UNS)
standard.
E607 Test Method for Atomic Emission Spectrometric
1.5.1 Exception—Certain SI units appear in brackets in
Analysis Aluminum Alloys by the Point to Plane Tech-
7.1.2.
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nique Nitrogen Atmosphere (Withdrawn 2011)
1.6 This standard does not purport to address all of the E716 Practices for Sampling and Sample Preparation of
safety concerns, if any, associated with its use. It is the Aluminum and Aluminum Alloys for Determination of
responsibility of the user of this standard to establish appro- Chemical Composition by Spectrochemical Analysis
priate safety and health practices and determine the applica- E1251 Test Method for Analysis of Aluminum and Alumi-
bility of regulatory limitations prior to use. num Alloys by Spark Atomic Emission Spectrometry
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This specification 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 1, 2011. Published June 2011. Originally the ASTM website.
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approved in 1946. Last previous edition approved in 2010 as B179 – 10. DOI: The last approved version of this historical standard is referenced on
10.1520/B0179-11E01. 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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B179 − 11
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A,B
TABLE 1 Chemical Composition Limits of Aluminum Alloys in Ingot and Molten Forms for All Casting Processes
This Table has been reprinted by the permission of the Aluminum Association, Inc.
Only composition limits which are identical to those listed herein or are registered with the Aluminum Association should be designated as “AA” alloys.
NOTE 1—Where single units are shown, these indicate the maximum amounts permitted.
NOTE 2—Analysis shall be made for those elements for which limits are shown in
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