ASTM A370-01

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An American National Standard
Designation: A 370 – 01
Standard Test Methods and Definitions for
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Mechanical Testing of Steel Products
This standard is issued under the fixed designation A 370; 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 inch-pound (ksi) units then converted into SI (MPa) units. The
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elongation determined in inch-pound gage lengths of 2 or 8 in.
1.1 These test methods cover procedures and definitions
may be reported in SI unit gage lengths of 50 or 200 mm,
for the mechanical testing of wrought and cast steels, stainless
respectively, as applicable. Conversely, when this document is
steels, and related alloys. The various mechanical tests herein
referenced in an inch-pound product specification, the yield
described are used to determine properties required in the
and tensile values may be determined in SI units then con-
product specifications. Variations in testing methods are to be
verted into inch-pound units. The elongation determined in SI
avoided, and standard methods of testing are to be followed to
unit gage lengths of 50 or 200 mm may be reported in
obtain reproducible and comparable results. In those cases in
inch-pound gage lengths of 2 or 8 in., respectively, as appli-
which the testing requirements for certain products are unique
cable.
or at variance with these general procedures, the product
1.6 Attention is directed to Practices A 880 and E 1595
specification testing requirements shall control.
when there may be a need for information on criteria for
1.2 The following mechanical tests are described:
evaluation of testing laboratories.
Sections
1.7 This standard does not purport to address all of the
Tension 5 to 13
Bend 14
safety concerns, if any, associated with its use. It is the
Hardness 15
responsibility of the user of this standard to establish appro-
Brinell 16
priate safety and health practices and determine the applica-
Rockwell 17
Portable 18
bility of regulatory limitations prior to use.
Impact 19 to 28
Keywords 29
2. Referenced Documents
1.3 Annexes covering details peculiar to certain products
2.1 ASTM Standards:
are appended to these test methods as follows:
A 703/A 703M Specification for Steel Castings, General
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Annex
Requirements, for Pressure-Containing Parts
Bar Products A1.1
A 781/A 781M Specification for Castings, Steel and Alloy,
Tubular Products Annex A2
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Fasteners Annex A3 Common Requirements, for General Industrial Use
Round Wire Products Annex A4
A 833 Practice for Indentation Hardness of Metallic Mate-
Significance of Notched-Bar Impact Testing Annex A5
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rials by Comparison Hardness Testers
Converting Percentage Elongation of Round Specimens to Annex A6
Equivalents for Flat Specimens A 880 Practice for Criteria for Use in Evaluation of Testing
Testing Multi-Wire Strand Annex A7
Laboratories and Organizations for Examination and In-
Rounding of Test Data Annex A8
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spection of Steel, Stainless Steel, and Related Alloys
Methods for Testing Steel Reinforcing Bars Annex A9
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E 4 Practices for Force Verification of Testing Machines
Procedure for Use and Control of Heat-Cycle Simulation Annex A10
E 6 Terminology Relating to Methods of Mechanical Test-
1.4 The values stated in inch-pound units are to be regarded
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ing
as the standard.
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E 8 Test Methods for Tension Testing of Metallic Materials
1.5 When this document is referenced in a metric product
E 8M Test Methods for Tension Testing of Metallic Mate-
specification, the yield and tensile values may be determined in
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rials [Metric]
E 10 Test Method for Brinell Hardness of Metallic Materi-
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als
These test methods and definitions are under the jurisdiction of ASTM
Committee A01 on Steel, Stainless Steel and Related Alloys and are the direct E 18 Test Methods for Rockwell Hardness and Rockwell
responsibility of Subcommittee A01.13 on Mechanical and Chemical Testing and
Processing Methods of Steel Products and Processes.
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Current edition approved Dec. 10, 2001. Published February 2002. Originally Annual Book of ASTM Standards, Vol 01.02.
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published as A 370 – 53 T. Last previous edition A 370 – 97a. Annual Book of ASTM Standards, Vol 01.05.
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Annual Book of ASTM Standards, Vol 01.03.
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cation SA-370 in Section II of that Code. Annual Book of ASTM Standards, Vol 03.01.
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