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ASTM B917/B917M-07

(Practice)

Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes

Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes

SCOPE
1.1 This practice covers, when specified by material specification or purchase order, the heat treatment of aluminum alloy castings from all casting processes.
1.1.1 The heat treatment of aluminum alloy castings used in specific aerospace applications is covered in AMS 2771 and specific AMS material specifications.
1.1.2 The heat treatment of wrought aluminum alloys is covered in Practice B 918.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standards. The SI units are shown in brackets or in separate tables. The values stated in each system are not exact equivalents, therefore each system must be used independent of the other. Combining values from the two systems may result in non-conformance with the practice.
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.

General Information

Status
Historical
Publication Date
31-Aug-2007
ICS
25.200 - Heat treatment
77.150.10 - Aluminium products
Technical Committee
B07 - Light Metals and Alloys
Drafting Committee
B07.01 - Aluminum Alloy Ingots and Castings
Current Stage
Ref Project

Relations

Replaces
ASTM B917/B917M-01(2005) - Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
Effective Date
01-Sep-2007
Replaced By
ASTM B917/B917M-08 - Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
Effective Date
07-Aug-2008
Referred By
ASTM B618/B618M-18e1 - Standard Specification for Aluminum-Alloy Investment Castings
Effective Date
01-Sep-2007
Referred By
ASTM B108/B108M-19 - Standard Specification for Aluminum-Alloy Permanent Mold Castings
Effective Date
01-Sep-2007
Referred By
ASTM B918/B918M-20a - Standard Practice for Heat Treatment of Wrought Aluminum Alloys
Effective Date
01-Sep-2007
Referred By
ASTM B26/B26M-18e1 - Standard Specification for Aluminum-Alloy Sand Castings
Effective Date
01-Sep-2007
Referred By
ASTM B969/B969M-18e1 - Standard Specification for Aluminum-Alloy Castings Produced by Squeeze Casting, and the Semi-Solid Thixocast and Rheocast Casting Processes
Effective Date
01-Sep-2007
Referred By
ASTM B881-17 - Standard Terminology Relating to Aluminum- and Magnesium-Alloy Products
Effective Date
01-Sep-2007
Referred By
ASTM B686/B686M-18 - Standard Specification for Aluminum Alloy Castings, High-Strength
Effective Date
01-Sep-2007
Referred By
ASTM B955/B955M-18 - Standard Specification for Aluminum-Alloy Centrifugal Castings
Effective Date
01-Sep-2007

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ASTM B917/B917M-07 - Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesASTM B917/B917M-07 - Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
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ASTM B917/B917M-07 - Standard Practice for Heat Treatment of Aluminum-Alloy Castings from All Processes
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 917/B 917M – 07
Standard Practice for
Heat Treatment of Aluminum-Alloy Castings from All
1
Processes
This standard is issued under the fixed designation B 917/B 917M; 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.
1. Scope* als and Alloys, Cast and Wrought
B 557 Test Methods for Tension Testing Wrought and Cast
1.1 This practice covers, when specified by material speci-
Aluminum- and Magnesium-Alloy Products
fication or purchase order, the heat treatment of aluminum
B 557M Test Methods for Tension Testing Wrought and
alloy castings from all casting processes.
Cast Aluminum- and Magnesium-Alloy Products (Metric)
1.1.1 The heat treatment of aluminum alloy castings used in
2 B 618 Specification for Aluminum-Alloy Investment Cast-
specific aerospace applications is covered in AMS 2771 and
2
ings
specific AMS material specifications.
B 686 Specification for Aluminum Alloy Castings, High-
1.1.2 The heat treatment of wrought aluminum alloys is
Strength
covered in Practice B 918.
B 881 Terminology Relating to Aluminum- and
1.2 The values stated in either inch-pound units or SI units
Magnesium-Alloy Products
are to be regarded separately as standards. The SI units are
B 918 Practice for Heat Treatment of Wrought Aluminum
shown in brackets or in separate tables. The values stated in
Alloys
each system are not exact equivalents, therefore each system
G110 Practice for Evaluating Intergranular Corrosion Re-
must be used independent of the other. Combining values from
sistanceofHeatTreatableAluminumAlloysbyImmersion
the two systems may result in non-conformance with the
in Sodium Chloride + Hydrogen Peroxide Solution
practice.
2.3 ANSI Standard:
1.3 This standard does not purport to address all of the
H35.1 Alloy and Temper Designation Systems for Alumi-
safety concerns, if any, associated with its use. It is the
4
num
responsibility of the user of this standard to establish appro-
2.4 SAE Standard:
priate safety and health practices and determine the applica-
AMS 2771 Heat Treatment of Aluminum Alloy Castings
bility of regulatory limitations prior to use.
3. Terminology
2. Referenced Documents
3.1 Definitions:
2.1 The following documents of the issue in effect on the
3.1.1 Refer to Terminology B 881 for terminology relating
dateofmaterialpurchaseformapartofthisspecificationtothe
to the heat treatment of castings.
extent referenced herein:
3
2.2 ASTM Standards:
4. Equipment
B 26/B 26M Specification for Aluminum-Alloy Sand Cast-
4.1 Heating Media—Aluminum castings are typically heat
ings
treated in air chamber furnaces; however, lead baths, oil baths,
B 108 Specification for Aluminum-Alloy Permanent Mold
fluidized beds, or even superheated steam may be used in
Castings
specific applications. The use of uncontrolled heating is not
B 275 Practice for Codification of Certain Nonferrous Met-
permitted. Whichever heating means are employed, careful
evaluation is required to ensure that the casting responds
1
properly to heat treatment and is not overheated or damaged by
This practice is under the jurisdiction of ASTM Committee B07 on Light
Metals and Alloys and is the direct responsibility of Subcommittee B07.01 on
the heat treatment environment. Salt baths are not recom-
Aluminum Alloy Ingots and Castings.
mended for the commercial heat treatment of aluminum
Current edition approved Sept. 1, 2007. Published September 2007. Originally
castings in volume. (Warning—Nitrate baths must not be used
approved in 2001. Last previous edition approved in 2005 as B 917/
B 917M – 01(2005). in the heat treatment of 5xx.0 series castings because of the
2
Available from Society of Automotive Engineers (SAE), 400 Commonwealth
inherent explosion hazard.
Dr., Warrendale, PA 15096-0001, http://www.sae.org.
3
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
4
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.
*ASummary 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 917/B 917M – 07
4.2 Air Chamber Furnaces—may be oil or gas-fired or may 5.2.1 A temperature survey, to ensure compliance with the
be electrically heated. The atmosphere in air chamber furnaces applicable recommendations presented
...

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This practice is intended for use in the heat treatment of wrought aluminum alloys for general purpose applications. Aluminum alloys are typically heated in air chamber furnaces or molten salt baths. Though lead baths, oil baths, or fluidized beds may be used, uncontrolled heating is not permitted. The furnace temperature uniformity and calibration shall conform to the specified requirements. Preparation for heat treatment of alloys shall follow the racking, spacing, and cleanliness requirements. Solution heat treatment shall follow the recommended soaking times and quenching procedures. Precipitation heat treatment shall conform to the prescribed times, temperatures, and annealing procedures. The alloys shall be subjected to tensile testing, eutectic melting and heat-treat-induced porosity analysis, intergranular corrosion test, and Alclad diffusion test.
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1.1.1 Type I, closed-cell polypropylene foam.  
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1.1 This test method covers the determination of the amount of draindown in an uncompacted asphalt mixture sample when the sample is held at elevated temperatures comparable to those encountered during the production, storage, transport, and placement of the mixture. The test is particularly applicable to mixtures such as porous asphalt (open-graded friction course) and stone matrix asphalt (SMA).  
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