ASTM B618-03

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Designation: B 618 – 03
Standard Specification for
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Aluminum-Alloy Investment Castings
This standard is issued under the fixed designation B 618; 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 (e) 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* B 917/B 917M Practice for Heat Treatment of Aluminum-
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Alloy Castings from All Processes
1.1 This specification covers aluminum-alloy investment
E 29 Practice for Using Significant Digits in Test Data to
castings designated as shown in Table 1.
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Determine Conformance with Specifications
1.2 This specification is not intended for aluminum-alloy
E 34 Test Methods for ChemicalAnalysis ofAluminum and
investment castings used in aerospace applications.
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Aluminum-Base Alloys
1.3 Alloy and temper designations are in accordance with
E 88 Practice for Sampling Nonferrous Metals and Alloys
ANSI H35.1. The equivalent Unified Numbering System alloy
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in Cast Form for Determination of Chemical Composition
designations are in accordance with Practice E 527.
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E 94 Guide for Radiographic Testing
1.4 For acceptance criteria for inclusion of new aluminum
E 155 Reference Radiographs for Inspection of Aluminum
and aluminum alloys and their properties in this specification,
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and Magnesium Castings
see Annex A1 and Annex A2.
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E 165 Test Method for Liquid Penetrant Examination
1.5 Units—The values stated in inch-pound units are to be
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E 527 Practice for Numbering Metals and Alloys (UNS)
regarded as the standard. The values given in parentheses are
E 607 Test Method for Optical Emission Spectrometric
mathematical conversions to SI units which are provided for
Analysis of Aluminum and Aluminum Alloys by the
information only and are not considered standard.
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Point-to-Plane Technique, Nitrogen Atmosphere
1.6 This standard does not purport to address all of the
E 716 Practices for Sampling Aluminum and Aluminum
safety concerns, if any, associated with its use. It is the
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Alloys for Spectrochemical Analysis
responsibility of the user of this standard to establish appro-
E 1251 Test Method for Optical Emission Spectrometric
priate safety and health practices and determine the applica-
Analysis ofAluminum andAluminumAlloys by theArgon
bility of regulatory limitations prior to use.
Atmosphere, Point-to-Plane, Unipolar Self-Initiating Ca-
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2. Referenced Documents
pacitor Discharge
IEEE/ASTM SI 10 Standard for Use of the International
2.1 The following documents of the issue in effect on the
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System of Units (SI): The Modern Metric System
date of purchase form a part of this specification to the extent
2.3 ANSI Standard:
referenced herein:
H35.1 Alloy and Temper Designation Systems for Alumi-
2.2 ASTM Standards:
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num
B 179 Specification for Aluminum Alloys in Ingot and
2
H35.1M Alloy and Temper Designation System for Alumi-
Molten Forms for Castings from all Casting Processes
2
num [Metric]
B 275 Practice for Codification of Certain Nonferrous Met-
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2.4 Military Standard:
als and Alloys, Cast and Wrought
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MIL-STD-129 Marking for Shipment and Storage
B 557 Test Methods of 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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2.6 AMS Standard:
Magnesium Products
1 3
This specification is under the jurisdiction of ASTM Committee B07 on Light Annual Book of ASTM Standards, Vol 14.02.
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Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on Annual Book of ASTM Standards, Vol 03.05.
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Aluminum Alloy Ingots and Castings. Annual Book of ASTM Standards, Vol 03.03.
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Current edition approved Apr. 10, 2003. Published September 2003. Originally Annual Book of ASTM Standards, Vol 01.01.
e1 7
approved in 1977. Last previous edition approved in 2002 as B 618 – 02 . Available from the Standardization Documents Order Desk, Bldg. 4, Section D,
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Annual Book of ASTM Standards, Vol 02.02. 700 Robbins Ave., Philadelphia, PA 19111-5094. 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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B618–03
TABLE 1 Chemical Composition Requirements
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 accepta
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