ASTM B26/B26M-02

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.
Designation:B 26/B 26M–01 Designation: B 26/B 26M – 02
Standard Specification for
1
Aluminum-Alloy Sand Castings
This standard is issued under the fixed designation B 26/B 26M; 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.
1. Scope*
2
1.1 This specification covers aluminum-alloy sand castings designated as shown in Table 1.
1.2 Alloy and temper designations are in accordance with ANSI H35.1 and H35.1M. Unified Numbering System alloy
designations are in accordance with Practice E 527E 527.
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 and their properties in this specification, see
Annex A1 and Annex A2.
1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standards. The SI units are shown
inbracketsorinseparatetablesorcolumns.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmust
be used independent of the other. Combining values from the two systems may result in nonconformance with the specification.
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:
2.2 ASTM Standards:
3
B 179 Specification for Aluminum Alloys in Ingot Form for Castings from All Casting Processes
B 275 Practice for Codification of Certain Nonferrous Met
3
als and Alloys, Cast and Wrought
3
B 557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
3
B 557M Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products [Metric]
3
B597Practice for Heat Treatment of Aluminum Alloys
3
B 660 Practices for Packaging/Packing of Aluminum and Magnesium Products
3
B 917/B 917M Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
4
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
5
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum Base-Alloys
5
E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition
6
E94 Guide for Radiographic Testing
6
E 155 Reference Radiographs for Examination of Aluminum and Magnesium Castings
6
E 165 Test Method for Liquid Penetrant Examination
E 227 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane
5
Technique
7
E 527 Practice for Numbering Metals and Alloys (UNS)
E 607 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane
5
Technique, Nitrogen Atmosphere
5
E 716 Practices for Sampling Aluminum and Aluminum Alloys for Spectrochemical Analysis
1
This specification is under the jurisdiction ofASTM Committee B07 on Light Metals andAlloys and is the direct responsibility of Subcommittee B07.01 onAluminum
Alloy Ingots and Castings.
Current edition approved Apr.Oct. 10, 2001.2002. Published May 2001.January 2003. Originally published as B 26 – 18 T. Last previous edition B 26/B 26M–99.
B 26/B 26M – 01.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SB-26/SB-26M in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 02.02.
4
Annual Book of ASTM Standards, Vol 14.02.
5
Annual Book of ASTM Standards, Vol 03.05.
6
Annual Book of ASTM Standards, Vol 03.03.
7
Annual Book of ASTM Standards, Vol 01.01.
*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 ----------------------
B 26/B 26M – 02
TABLE 1 Chemical Composition Limits
NOTE 1—When single units are shown, these indicate the maximum amounts permitted.
NOTE 2—Analysis shall be made for the elements for which limits are shown in this table.
NOTE 3—The following applies to all specified limits in this table: For purposes of determining conformance to these limits, an observed value or a
calculated value obtained from analysis shall be rounded to the nearest unit in the last right-hand
...