ASTM B557-06
(Test Method)Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
SIGNIFICANCE AND USE
Tension tests provide information on the strength and ductility of materials under uniaxial tensile stresses. This information may be useful in comparisons of materials, alloy development, quality control, and design under certain circumstances.
The results of tension tests of specimens machined to standardized dimensions from selected portions of a part or material may not totally represent the strength and ductility properties of the entire end product or its in-service behavior in different environments.
These test methods are considered satisfactory for acceptance testing of commercial shipments and have been used extensively in the trade for this purpose.
SCOPE
1.1 These test methods cover the tension testing of wrought and cast aluminum- and magnesium-alloy products, excepting aluminum foil, and are derived from Test Methods E 8, which cover the tension testing of all metallic materials.
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.
Exceptions to the provisions of these test methods may need to be made in individual specifications or test methods for a particular material.
Note 1
A complete metric companion to Test Methods B 557 has been developed-Test Methods B 557M; therefore, no metric equivalents are presented in these test methods.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B557 – 06
Standard Test Methods for
Tension Testing Wrought and Cast Aluminum- and
1
Magnesium-Alloy Products
This standard is issued under the fixed designation B557; 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* E83 Practice for Verification and Classification of Exten-
someter Systems
1.1 These test methods cover the tension testing of wrought
E345 Test Methods of Tension Testing of Metallic Foil
and cast aluminum- and magnesium-alloy products, excepting
2 E691 Practice for Conducting an Interlaboratory Study to
aluminum foil , and are derived from Test Methods E8, which
Determine the Precision of a Test Method
cover the tension testing of all metallic materials.
E1012 PracticeforVerificationofTestFrameandSpecimen
1.2 This standard does not purport to address all of the
Alignment Under Tensile and Compressive Axial Force
safety concerns, if any, associated with its use. It is the
Application
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Terminology
bility of regulatory limitations prior to use.
3.1 The definitions of terms relating to tension testing
NOTE 1—Exceptions to the provisions of these test methods may need
appearing in Terminology E6 shall be considered as applying
to be made in individual specifications or test methods for a particular
to the terms used in these test methods.
material.
NOTE 2—AcompletemetriccompaniontoTestMethodsB557hasbeen
4. Significance and Use
developed—Test Methods B557M; therefore, no metric equivalents are
4.1 Tension tests provide information on the strength and
presented in these test methods.
ductility of materials under uniaxial tensile stresses. This
2. Referenced Documents
information may be useful in comparisons of materials, alloy
development, quality control, and design under certain circum-
2.1 The following documents of the issue in effect on the
date of material purchase form a part of these test methods to stances.
4.2 The results of tension tests of specimens machined to
the extent referenced herein:
3
2.2 ASTM Standards: standardized dimensions from selected portions of a part or
material may not totally represent the strength and ductility
B209 Specification for Aluminum and Aluminum-Alloy
Sheet and Plate propertiesoftheentireendproductoritsin-servicebehaviorin
different environments.
E4 Practices for Force Verification of Testing Machines
E6 TerminologyRelatingtoMethodsofMechanicalTesting 4.3 These test methods are considered satisfactory for ac-
ceptance testing of commercial shipments and have been used
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to extensively in the trade for this purpose.
Determine Conformance with Specifications
5. Apparatus
5.1 Testing Machines—Machines used for tension testing
1
shall conform to the requirements of Practices E4. The forces
These test methods are under the jurisdiction of ASTM Committee B07 on
Light Metals and Alloys and are the direct responsibility of Subcommittee B07.05
used in determining tensile strength and yield strength shall be
on Testing.
within the verified force application range of the testing
Current edition approved May 1, 2006. Published May 2006. Originally
machine as defined in Practices E4.
approved in 1971. Last previous edition approved in 2002 as B557 – 02a. DOI:
5.2 Gripping Devices:
10.1520/B0557-06.
2
For test methods of tension testing of aluminum foil, see Test Methods E345.
5.2.1 General—Various types of gripping devices may be
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
used to transmit the measured load applied by the testing
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
machine to the test specimens. To ensure axial tensile stress
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. within the gage length, the axis of the test specimen must
*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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B557 – 06
coincide with the centerline of the heads of the testing
machine. Any departure from this requirement may introduce
bending stresses that are not included in the usual stress
computation (load divided by cross-sectional area).
NOTE 3—The effect
...
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