ASTM B686-02

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 – 02
Standard Specification for
1
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.
6
1. Scope* E94 Guide for Radiographic Examination
E 155 Reference Radiographs for Examination of Alumi-
1.1 This specification covers aluminum-alloy high-strength
6
num and Magnesium Castings
castings designated as shown in Table 1.
6
E 165 Test Method for Liquid Penetrant Examination
1.2 Castings covered by this specification are intended for
E 227 Test Method for Optical Emission Spectrometric
use in airframe, missile, and other critical applications where
Analysis of Aluminum and Aluminum Alloys by the
high strength, ductility, and sound castings are required.
5
Point-to-Plane Technique
1.3 For acceptance criteria for inclusion of new aluminum
7
E 527 Practice for Numbering Metals and Alloys (UNS)
and aluminum alloys and their properties in this specification,
E 607 Test Method for Optical Emission Spectrometric
see Annex A1 and Annex A2.
Analysis of Aluminum and Aluminum Alloys by the
1.4 The values stated in inch-pound units are to be regarded
5
Point-to-Plane Technique, Nitrogen Atmosphere
as standard. The values given in parentheses are mathematical
E 716 Practices for Sampling Aluminum and Aluminum
conversions to SI units which are provided for information
5
Alloys for Spectrochemical Analysis
only and are not considered standard.
E 1251 Test Method for Optical Emission Spectrometric
2. Referenced Documents
Analysis ofAluminum andAluminumAlloys by theArgon
Atmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-
2.1 The following documents of the issue in effect on the
5
pacitor Discharge
date of purchase form a part of this specification to the extent
IEEE/ASTM SI 10 Standard for Use of the International
referenced herein:
4
System of Units (SI): The Modern Metric System
2.2 ASTM Standards:
2.3 ANSI Standards:
B 179 Specification for Aluminum Alloys in Ingot and
2
H35.1 Alloy and Temper Designation Systems for Alumi-
Molten Forms for Castings from All Casting Processes
2
num
B 557 Test Methods for Tension Testing Wrought and Cast
2
Z1.4 Sampling Procedures and Tables for Inspection by
Aluminum and Magnesium-Alloy Products
8
Attributes
B 660 Practices for Packaging/Packing of Aluminum and
2
2.4 Military Standards:
Magnesium Products
9
MIL-STD-129 Marking for Shipment and Storage
B 917/B 917M Practice for Heat treating Aluminum-Alloy
2
2.5 Federal Standard:
Castings from All Processes
9
3
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
D 3951 Practice for Commercial Packaging
E29 Practice for Using Significant Digits in Test Data to
3. Classification
4
Determine Conformance with Specifications
3.1 Castings shall be classified by inspection classes.
E34 Test Methods for ChemicalAnalysis ofAluminum and
5 3.1.1 Classes (Inspection):
Aluminum Base Alloys
3.1.1.1 Class 1—A class of casting, the single failure of
E88 Practice for Sampling Nonferrous Metals and Alloys
5
which would result in the loss of a missile, aircraft, or other
in Cast Form for Determination of Chemical Composition
vehicle.
3.1.1.2 Class 2—Class 1 castings not included in Class 1,
1
This specification is under the jurisdiction of ASTM Committee B07 on Light
the single failure of which would cause significant danger to
Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on
Aluminum Alloy Ingots and Castings.
6
Current edition approved Apr. 10, 2002. Published June 2002. Originally Annual Book of ASTM Standards, Vol 03.03.
7
published as B 686 – 81. Last previous edition B 686 – 99. Annual Book of ASTM Standards, Vol 01.01.
2 8
Annual Book of ASTM Standards, Vol 02.02. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
3
Annual Book of ASTM Standards, Vol 15.09. 4th Floor, New York, NY 10036.
4 9
Annual Book of ASTM Standards, Vol 14.02. AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
5
Annual Book of ASTM Standards, Vol 03.05. 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.
1

---------------------- Page: 1 ----------------------
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 informati
...