ASTM B618/B618M-10
(Specification)Standard Specification for Aluminum-Alloy Investment Castings
Standard Specification for Aluminum-Alloy Investment Castings
ABSTRACT
This specification covers aluminum-alloy investment castings. Unless otherwise specified, only aluminum alloy conforming to the requirements shall be used in the remelting furnace from which molten metal is taken for pouring directly into castings. The castings shall conform to the chemical composition requirements specified. The determination of chemical composition shall be made in accordance with suitable chemical (Test Methods E 34), or spectrochemical (Test Methods E 607 and E 1251) methods. Unless otherwise specified, only aluminum alloy conforming to the requirements shall be used in the remelting furnace from which molten metal is taken for pouring directly into castings. Foundry control shall consist of examination of castings by radiographic or other approved methods for determining internal discontinuities until the gating, pouring, and other foundry practices have been established to produce castings meeting the required quality standards. The tensile properties shall be determined in accordance with Test Methods B 557 and B 557M. Heat treatment of castings shall be performed in accordance with Practice B 917/B 917M.
SCOPE
1.1 This specification covers aluminum-alloy investment castings designated as shown in Table 1.
1.2 This specification is not intended for aluminum-alloy investment castings used in aerospace applications.
1.3 Alloy and temper designations are in accordance with ANSI H35.1/H35.1 (M). The equivalent 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.
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Designation: B618/B618M – 10
Standard Specification for
1
Aluminum-Alloy Investment Castings
This standard is issued under the fixed designation B618/B618M; 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* Molten Forms for Castings from All Casting Processes
B275 Practice for Codification of Certain Nonferrous Met-
1.1 This specification covers aluminum-alloy investment
als and Alloys, Cast and Wrought
castings designated as shown in Table 1.
B557 Test Methods for Tension Testing Wrought and Cast
1.2 This specification is not intended for aluminum-alloy
Aluminum- and Magnesium-Alloy Products
investment castings used in aerospace applications.
B557M TestMethodsforTensionTestingWroughtandCast
1.3 Alloy and temper designations are in accordance with
Aluminum- and Magnesium-Alloy Products (Metric)
ANSI H35.1/H35.1 (M). The equivalent Unified Numbering
B660 Practices for Packaging/Packing of Aluminum and
System alloy designations are in accordance with Practice
Magnesium Products
E527.
B881 TerminologyRelatingtoAluminum-andMagnesium-
1.4 Unless the order specifies the “M” specification desig-
Alloy Products
nation, the material shall be furnished to the inch-pound units.
B917/B917M Practice for Heat Treatment of Aluminum-
1.5 For acceptance criteria for inclusion of new aluminum
Alloy Castings from All Processes
and aluminum alloys and their properties in this specification,
D3951 Practice for Commercial Packaging
see Annex A1 and Annex A2.
E29 Practice for Using Significant Digits in Test Data to
1.6 Units—The values stated in either SI units or inch-
Determine Conformance with Specifications
pound units are to be regarded separately as standard. The
E34 Test Methods for ChemicalAnalysis ofAluminum and
values stated in each system may not be exact equivalents;
Aluminum-Base Alloys
therefore,eachsystemshallbeusedindependentlyoftheother.
E94 Guide for Radiographic Examination
Combining values from the two systems may result in noncon-
E155 Reference Radiographs for Inspection of Aluminum
formance with the standard.
and Magnesium Castings
1.7 This standard does not purport to address all of the
E165 PracticeforLiquidPenetrantExaminationforGeneral
safety concerns, if any, associated with its use. It is the
Industry
responsibility of the user of this standard to establish appro-
E527 Practice for Numbering Metals and Alloys in the
priate safety and health practices and determine the applica-
Unified Numbering System (UNS)
bility of regulatory limitations prior to use.
E607 Test Method for Atomic Emission Spectrometric
2. Referenced Documents Analysis Aluminum Alloys by the Point to Plane Tech-
nique Nitrogen Atmosphere
2.1 The following documents of the issue in effect on the
E716 Practices for Sampling and Sample Preparation of
date of purchase form a part of this specification to the extent
Aluminum and Aluminum Alloys for Determination of
referenced herein:
2
Chemical Composition by Spectrochemical Analysis
2.2 ASTM Standards:
E1251 Test Method for Analysis of Aluminum and Alumi-
B179 Specification for Aluminum Alloys in Ingot and
num Alloys by Spark Atomic Emission Spectrometry
IEEE/ASTM SI 10 Standard for Use of the International
1
This specification is under the jurisdiction of ASTM Committee B07 on Light
System of Units (SI): The Modern Metric System
Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on 3
2.3 ANSI Standard:
Aluminum Alloy Ingots and Castings.
H35.1/H35.1 (M) - 2006 American National StandardAlloy
Current edition approved Nov. 1, 2010. Published December 2010. Originally
approved in 1977. Last previous edition approved in 2008 as B618/B618M – 08. and Temper Designation Systems for Aluminum
DOI: 10.1520/B0618_B0618M-10.
2
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
3
Standards volume information, refer to the standard’s Document Summary page on Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600,
the ASTM website. Arlington, VA 22209, http://www.aluminum.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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B618/B618M – 10
2
TABLE 1 Chemical Composition Requirements
NOTE 1—When single units are shown, these indicate the maximum amounts permitted.
NOTE 2—Analysis shall be made
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:B618/B618M–08 Designation: B618/B618M – 10
Standard Specification for
1
Aluminum-Alloy Investment Castings
This standard is issued under the fixed designation B618/B618M; 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*
1.1 This specification covers aluminum-alloy investment castings designated as shown in Table 1.
1.2 This specification is not intended for aluminum-alloy investment castings used in aerospace applications.
1.3 Alloy and temper designations are in accordance withANSI H35.1/H35.1 (M). The equivalent 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 Units—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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 The following documents of the issue in effect on the date of purchase form a part of this specification to the extent
referenced herein:
2
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 Nonferrous Metals and Alloys, Cast and Wrought
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
B881 Terminology Relating to Aluminum- and Magnesium-Alloy Products
B917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
D3951 Practice for Commercial Packaging
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
E94 Guide for Radiographic Examination
E155 Reference Radiographs for Inspection of Aluminum and Magnesium Castings
E165 Practice for Liquid Penetrant Examination for General Industry
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E607 Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen
Atmosphere
E716 Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical
Composition by Spectrochemical Analysis
E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Atomic Emission Spectrometry
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 JuneNov. 1, 2008.2010. Published July 2008.December 2010. Originally approved in 1977. Last previous edition approved in 20072008 as
B618/B618M – 078. DOI: 10.1520/B0618_B0618M-108.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 ----------------------
B618/B618M – 10
2
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 elemen
...
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