ASTM E8M-01

Standard Test Methods for Tension Testing of Metallic Materials [Metric]

SCOPE
1.1 These test methods cover the tension testing of metallic materials in any form at room temperature, specifically, the methods of determination of yield strength, yield point elongation, tensile strength, elongation, and reduction of area.
Note 1—These test methods are the metric companion of Test Methods E 8. Committee E-28 was granted an exception in 1997 by the Committee on Standards to maintain E8 and E8M as separate companion standards rather than combining standards as recommended by the Form and Style manual.
Note 2—These metric test methods are essentially the same as those in Test Methods E 8, and are compatible in technical content except that gage lengths are required to be 5D for most round specimens rather than 4D as specified in Test Methods E 8. Test specimens made from powder metallurgy (P/M) materials are exempt from this requirement by industry-wide agreement to keep the pressing of the material to a specific projected area and density.
Note 3—Exceptions to the provisions of these test methods may need to be made in individual specifications or test methods for a particular material. For examples, see Test Methods and Definitions A 370 and Test Methods B 557M.
Note 4—Room temperature shall be considered to be 10 to 38°C unless otherwise specified.
1.2 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./p>

General Information

• Status: Historical
• Publication Date: 09-Oct-2001
• Technical Committee: E28 - Mechanical Testing
• Drafting Committee: E28.04 - Uniaxial Testing

Relations

• Replaces: ASTM E8M-00b - Standard Test Methods for Tension Testing of Metallic Materials [Metric]
• Effective Date: 10-Oct-2001
• Replaced By: ASTM E8M-01e1 - Standard Test Methods for Tension Testing of Metallic Materials [Metric]
• Effective Date: 10-Oct-2001
• Referred By: ASTM F468M-06(2018) - Standard Specification for Nonferrous Bolts, Hex Cap Screws, and Studs for General Use (Metric)
• Effective Date: 10-Oct-2001
• Referred By: ASTM B811-13(2022)e1 - Standard Specification for Wrought Zirconium Alloy Seamless Tubes for Nuclear Reactor Fuel Cladding
• Effective Date: 10-Oct-2001
• Referred By: ASTM F2971-13(2021) - Standard Practice for Reporting Data for Test Specimens Prepared by Additive Manufacturing
• Effective Date: 10-Oct-2001
• Referred By: ASTM B557M-15(2023) - Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
• Effective Date: 10-Oct-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: E 8M – 01
METRIC
Standard Test Methods for
1
Tension Testing of Metallic Materials [Metric]
This standard is issued under the fixed designation E 8M; 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 * A 370 Test Methods and Definitions for Mechanical Testing
3
of Steel Products
1.1 These test methods cover the tension testing of metallic
B 557M Test Methods of Tension Testing Wrought and Cast
materials in any form at room temperature, specifically, the
4
Aluminum- and Magnesium-Alloy Products [Metric]
methods of determination of yield strength, yield point elon-
5
E 4 Practices for Force Verification of Testing Machines
gation, tensile strength, elongation, and reduction of area.
E 6 Terminology Relating to Methods of Mechanical Test-
NOTE 1—These test methods are the metric companion of Test Methods 5
ing
E 8. Committee E-28 was granted an exception in 1997 by the Committee
5
E 8 Test Methods for Tension Testing of Metallic Materials
on Standards to maintain E8 and E8M as separate companion standards
E 29 Practice for Using Significant Digits in Test Data to
rather than combining standards as recommended by the Form and Style
6
Determine Conformance with Specifications
manual.
E 83 Practice for Verification and Classification of Exten-
NOTE 2—These metric test methods are essentially the same as those in
5
Test Methods E 8, and are compatible in technical content except that gage
someters
5
lengths are required to be 5D for most round specimens rather than 4D as
E 345 Test Methods of Tension Testing of Metallic Foil
specified in Test Methods E 8. Test specimens made from powder
E 691 Practice for Conducting an Interlaboratory Study to
metallurgy (P/M) materials are exempt from this requirement by industry-
6
Determine the Precision of a Test Method
wide agreement to keep the pressing of the material to a specific projected
E 1012 Practice for Verification of Specimen Alignment
area and density.
5
Under Tensile Loading
NOTE 3—Exceptions to the provisions of these test methods may need
to be made in individual specifications or test methods for a particular
3. Terminology
material. For examples, see Test Methods and Definitions A 370 and Test
Methods B 557M.
3.1 Definitions—The definitions of terms relating to tension
NOTE 4—Room temperature shall be considered to be 10 to 38°C unless
testing appearing in Terminology E 6 shall be considered as
otherwise specified.
applying to the terms used in these test methods of tension
1.2 This standard does not purport to address all of the
testing. Additional terms being defined are as follows:
safety concerns, if any, associated with its use. It is the
3.1.1 discontinuous yielding—a hesitation or fluctuation of
responsibility of the user of this standard to establish appro-
force observed at the onset of plastic deformation, due to
priate safety and health practices and determine the applica-
localized yielding. (The stress-strain curve need not appear to
bility of regulatory limitations prior to use.
be discontinuous.)
−2
3.1.2 lower yield strength, LYS [FL ]—the minimum stress
2. Referenced Documents
recorded during discontinuous yielding, ignoring transient
2.1 ASTM Standards:
effects.
−2
A 356/A356M Specification for Steel Castings, Carbon,
3.1.3 upper yield strength, UYS [FL ]—the first stress
Low Alloy, and Stainless Steel, Heavy-Walled for Steam
maximum (stress at first zero slope) associated with discon-
2
Turbines
tinuous yielding.
3.1.4 yield point elongation, YPE—the strain (expressed in
percent) separating the stress-strain curve’s first point of zero
slope from the point of transition from discontinuous yielding
1
These test methods are under the jurisdiction of ASTM Committee E28 on
Mechanical Testing and are the direct responsibility of Subcommittee E28.04 on
Uniaxial Testing.
3
Current edition approved Oct. 10, 2001. Published December 2001. Originally
Annual Book of ASTM Standards, Vol 01.03.
4
published as E 8M – 84. Last previous edition E 8M – 00b.
Annual Book of ASTM Standards, Vol 02.02.
2
5
Annual Book of ASTM Standards, Vol 01.02.
Annual Book of ASTM Standards, Vol 03.01.
6
Annual Book of ASTM Standards, Vol 14.02.
*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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E8M
to uniform strain hardening. If the transition occurs over a sup
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