ASTM B26/B26M-18
(Specification)Standard Specification for Aluminum-Alloy Sand Castings
Standard Specification for Aluminum-Alloy Sand Castings
ABSTRACT
This specification covers aluminum alloy sand castings except those that are for aerospace applications. The chemical compositions are determined in accordance with the specified suitable chemical and spectrochemical test methods. Addition of small amounts of modifiers and grain refining elements to the molten alloys from the remelting furnace is permitted before casting. Pure metals, recycled materials, and master alloys can also be used to make the alloys as long as the chemical composition can be analyzed and adjusted to conform to the requirements prior to pouring any casting. Castings should only be repaired using approved processes such as welding, impregnation, peening, blending, soldering, and so forth.
SCOPE
1.1 This specification2 covers aluminum-alloy sand castings designated as shown in Table 1.
1.2 This specification is for aluminum-alloy sand 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/H35.1M.
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 nonconformance 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, health, and environmental 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.
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Designation:B26/B26M −18
Standard Specification for
1
Aluminum-Alloy Sand Castings
This standard is issued under the fixed designation B26/B26M; 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 U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This specification covers aluminum-alloy sand castings 2.1 The following documents of the issue in effect on date
designated as shown in Table 1. of material purchase form a part of this specification to the
extent referenced herein:
1.2 This specification is for aluminum-alloy sand castings
3
used in general purpose applications. It may not address the 2.2 ASTM Standards:
mechanical properties, integrity testing, and verification re- B179 Specification for Aluminum Alloys in Ingot and Mol-
quired for highly loaded or safety critical applications. ten Forms for Castings from All Casting Processes
B275 PracticeforCodificationofCertainZinc,TinandLead
1.3 Alloy and temper designations are in accordance with
Die Castings
ANSI H35.1/H35.1M.
B557 Test Methods for Tension Testing Wrought and Cast
1.4 Unless the order specifies the “M” specification
Aluminum- and Magnesium-Alloy Products
designation, the material shall be furnished to the inch-pound
B557M Test Methods for Tension Testing Wrought and Cast
units.
Aluminum- and Magnesium-Alloy Products (Metric)
B660 Practices for Packaging/Packing of Aluminum and
1.5 For acceptance criteria for inclusion of new aluminum
and aluminum alloys and their properties in this specification, Magnesium Products
B666/B666M Practice for Identification Marking of Alumi-
see Annex A1 and Annex A2.
num and Magnesium Products
1.6 The values stated in either SI units or inch-pound units
B881 Terminology Relating toAluminum- and Magnesium-
are to be regarded separately as standard. The values stated in
Alloy Products
each system may not be exact equivalents; therefore, each
B917/B917M Practice for Heat Treatment of Aluminum-
system shall be used independently of the other. Combining
Alloy Castings from All Processes
values from the two systems may result in nonconformance
B985 Practice for SamplingAluminum Ingots, Billets, Cast-
with the standard.
ings and Finished or Semi-Finished Wrought Aluminum
1.7 This standard does not purport to address all of the
Products for Compositional Analysis
safety concerns, if any, associated with its use. It is the
D3951 Practice for Commercial Packaging
responsibility of the user of this standard to establish appro-
E29 Practice for Using Significant Digits in Test Data to
priate safety, health, and environmental practices and deter-
Determine Conformance with Specifications
mine the applicability of regulatory limitations prior to use.
E34 Test Methods for Chemical Analysis of Aluminum and
1.8 This international standard was developed in accor- 4
Aluminum-Base Alloys (Withdrawn 2017)
dance with internationally recognized principles on standard-
E94/E94M Guide for Radiographic Examination Using In-
ization established in the Decision on Principles for the
dustrial Radiographic Film
Development of International Standards, Guides and Recom-
E155 Reference Radiographs for Inspection of Aluminum
mendations issued by the World Trade Organization Technical
and Magnesium Castings
Barriers to Trade (TBT) Committee.
E165/E165M Practice for Liquid Penetrant Examination for
General Industry
E607 Test Method for Atomic Emission Spectrometric
1
This specification is under the jurisdiction of ASTM Committee B07 on Light
Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on
3
Aluminum Alloy Ingots and Castings. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 15, 2018. Published June 2018. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ε1
approved in 1918. Last previous edition approved in 2014 as B26/B26M – 14 . Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/B0026_B0026M-18. the ASTM website.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- The last approved version of this historical standard is referenced on
cation SB-26/SB-26M in Section II of that Code. 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
1
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B26/B26M−18
Analysis Aluminum Alloys by the Point to Plane Tech-
...
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.
´1
Designation: B26/B26M − 14 B26/B26M − 18
Standard Specification for
1
Aluminum-Alloy Sand Castings
This standard is issued under the fixed designation B26/B26M; 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 U.S. Department of Defense.
1
ε NOTE—Table 1 was updated in February 2015 to include footnotes E, F, and G.
1. Scope*
2
1.1 This specification covers aluminum-alloy sand castings designated as shown in Table 1.
1.2 This specification is for aluminum-alloy sand 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/H35.1M. Unified Numbering System alloy designations
are in accordance with Practice E527.
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 nonconformance 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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
3
2.2 ASTM Standards:
B179 Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
B275 Practice for Codification of Certain Zinc, Tin and Lead Die Castings
B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
B660 Practices for Packaging/Packing of Aluminum and Magnesium Products
B666/B666M Practice for Identification Marking of Aluminum and Magnesium Products
B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products
B917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
1
This specification is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on Aluminum
Alloy Ingots and Castings.
Current edition approved Oct. 1, 2014May 15, 2018. Published October 2014June 2018. Originally approved in 1918. Last previous edition approved in 20122014 as
ε1
B26/B26M – 12.B26/B26M – 14 . DOI: 10.1520/B0026_B0026M-14E01.10.1520/B0026_B0026M-18.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-26/SB-26M in Section II of that Code.
3
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
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
B26/B26M − 18
B985 Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for
Compositional Analysis
B917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
D3951 Practice for Commercial Packaging
...
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