ASTM B686-03

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: B 686 – 03
Standard Specification for
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Aluminum Alloy Castings, High-Strength
This standard is issued under the fixed designation B 686; 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 (ϵ) 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* E29 Practice for Using Significant Digits in Test Data to
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Determine Conformance with Specifications
1.1 This specification covers aluminum-alloy high-strength
E34 Test Methods for ChemicalAnalysis ofAluminum and
castings designated as shown in Table 1.
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Aluminum-Base Alloys
1.2 Castings covered by this specification are intended for
E88 Practice for Sampling Nonferrous Metals and Alloys
use in airframe, missile, and other critical applications where
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in Cast Form for Determination of Chemical Composition
high strength, ductility, and sound castings are required.
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E94 Guide for Radiographic Examination
1.3 For acceptance criteria for inclusion of new aluminum
E 155 Reference Radiographs for Examination of Alumi-
and aluminum alloys and their properties in this specification,
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num and Magnesium Castings
see Annex A1 and Annex A2.
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E 165 Test Method for Liquid Penetrant Examination
1.4 The values stated in either inch-pound units or SI units
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E 527 Practice for Numbering Metals and Alloys (UNS)
are to be regarded separately as standard. Within the text, the
E 607 Test Method for Optical Emission Spectrometric
SIunitsareshowninbrackets.Thevaluesstatedineachsystem
Analysis of Aluminum and Aluminum Alloys by the
are not exact equivalents; therefore, each system shall be used
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Point-to-Plane Technique, Nitrogen Atmosphere
independently of the other. Combining values from the two
E 716 Practices for Sampling Aluminum and Aluminum
systems may result in nonconformance with the standard.
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Alloys for Spectrochemical Analysis
1.5 This standard does not purport to address all of the
E 1251 Test Method for Optical Emission Spectrometric
safety concerns, if any, associated with its use. It is the
Analysis ofAluminum andAluminumAlloys by theArgon
responsibility of the user of this standard to establish appro-
Atmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-
priate safety and health practices and determine the applica-
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pacitor Discharge
bility of regular limitations prior to use.
IEEE/ASTM SI 10 Standard for Use of the International
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2. Referenced Documents
System of Units (SI): The Modern Metric System
2.3 ANSI Standards:
2.1 The following documents of the issue in effect on the
H35.1 Alloy and Temper Designation Systems for Alumi-
date of purchase form a part of this specification to the extent
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num
referenced herein:
Z1.4 Sampling Procedures and Tables for Inspection by
2.2 ASTM Standards:
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Attributes
B 179 Specification for Aluminum Alloys in Ingot and
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2.4 Military Standards:
Molten Forms for Castings from All Casting Processes
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MIL-STD-129 Marking for Shipment and Storage
B 557 Test Methods for Tension Testing Wrought and Cast
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2.5 Federal Standard:
Aluminum- and Magnesium-Alloy Products
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Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
B 660 Practices for Packaging/Packing of Aluminum and
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Magnesium Products
3. Classification
B 917/B 917M Practice for Heat treating Aluminum-Alloy
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3.1 Castings shall be classified by inspection classes.
Castings from All Processes
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3.1.1 Classes (Inspection):
D 3951 Practice for Commercial Packaging
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Annual Book of ASTM Standards, Vol 14.02.
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This specification is under the jurisdiction of ASTM Committee B07 on Light Annual Book of ASTM Standards, Vol 03.05.
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Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on Annual Book of ASTM Standards, Vol 03.03.
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Aluminum Alloy Ingots and Castings. Annual Book of ASTM Standards, Vol 01.01.
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Current edition approved Apr. 10, 2003. Published August 2003. Originally
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
approved in 1981. Last previous edition approved in 2002 as B 686 – 02a. 4th Floor, New York, NY 10036.
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Annual Book of ASTM Standards, Vol 02.02. AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
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Annual Book of ASTM Standards, Vol 15.09. Robbins Ave., Philadelphia, PA 19111-5098 Attn: NPODS.
*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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