ASTM A370-14

Standard Test Methods and Definitions for Mechanical Testing of Steel Products

SCOPE
1.1 These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.  
1.2 The following mechanical tests are described:    
Sections  
Tension  
6 to 14  
Bend  
15  
Hardness  
16  
Brinell  
17  
Rockwell  
18  
Portable  
19  
Impact  
20 to 29  
Keywords  
30  
1.3 Annexes covering details peculiar to certain products are appended to these test methods as follows:    
Annex  
Bar Products  
A1.1  
Tubular Products  
Annex A2  
Fasteners  
Annex A3  
Round Wire Products  
Annex A4  
Significance of Notched-Bar Impact Testing  
Annex A5  
Converting Percentage Elongation of Round Specimens to
Equivalents for Flat Specimens  
Annex A6  
Testing Multi-Wire Strand  
Annex A7  
Rounding of Test Data  
Annex A8  
Methods for Testing Steel Reinforcing Bars  
Annex A9  
Procedure for Use and Control of Heat-Cycle Simulation  
Annex A10  
1.4 The values stated in inch-pound units are to be regarded as the standard.  
1.5 When this document is referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 or 8 in. may be reported in SI unit gauge lengths of 50 or 200 mm, respectively, as applicable. Conversely, when this document is referenced in an inch-pound product specification, the yield and tensile values may be determined in SI units then converted into inch-pound units. The elongation determined in SI unit gauge lengths of 50 or 200 mm may be reported in inch-pound gauge lengths of 2 or 8 in., respectively, as applicable.  
1.6 Attention is directed to ISO/IEC 17025 when there may be a need for information on criteria for evaluation of testing laboratories.  
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.

General Information

• Status: Historical
• Publication Date: 14-May-2014
• ICS: 77.040.10 - Mechanical testing of metals
• ICS: 77.140.01 - Iron and steel products in general
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.13 - Mechanical and Chemical Testing and Processing Methods of Steel Products and Processes

Relations

• Replaces: ASTM A370-13 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Effective Date: 15-May-2014
• Replaced By: ASTM A370-15 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Effective Date: 01-Nov-2015
• Referred By: ASTM A1123/A1123M-22 - Standard Specification for Carbon Steel Laser and Laser-Hybrid Welded, Sharp-Cornered Profile (SCP), Built-Up, Square, Rectangular, and Special Shape Tube
• Effective Date: 15-May-2014
• Referred By: ASTM A691/A691M-19 - Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• Effective Date: 15-May-2014
• Referred By: ASTM A923-23 - Standard Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels
• Effective Date: 15-May-2014
• Referred By: ASTM A263-12(2019) - Standard Specification for Stainless Chromium Steel-Clad Plate
• Effective Date: 15-May-2014
• Referred By: ASTM A1024/A1024M-18 - Standard Specification for Steel Line Pipe, Black, Plain-End, Seamless
• Effective Date: 15-May-2014
• Referred By: ASTM F256-05(2020) - Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium (Withdrawn 2023)
• Effective Date: 15-May-2014
• Referred By: ASTM A877/A877M-17(2023) - Standard Specification for Steel Wire, Chromium-Silicon Alloys, Chrome-Silicon-Vanadium Alloy Valve Spring Quality
• Effective Date: 15-May-2014
• Referred By: ASTM A881/A881M-23 - Standard Specification for Steel Wire, Indented, Low-Relaxation for Prestressed Concrete
• Effective Date: 15-May-2014
• Referred By: ASTM A615/A615M-22 - Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
• Effective Date: 15-May-2014
• Referred By: ASTM A996/A996M-16 - Standard Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement
• Effective Date: 15-May-2014
• Referred By: ASTM A853-19 - Standard Specification for Steel Wire, Carbon, for General Use
• Effective Date: 15-May-2014
• Referred By: ASTM G129-21 - Standard Practice for Slow Strain Rate Testing to Evaluate the Susceptibility of Metallic Materials to Environmentally Assisted Cracking
• Effective Date: 15-May-2014
• Referred By: ASTM F1074-87(2023) - Standard Specification for Cleats, Welded Horn Type
• Effective Date: 15-May-2014

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:A370 −14
StandardTest Methods and Definitions for
1
Mechanical Testing of Steel Products
This standard is issued under the fixed designation A370; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber 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 U.S. Department of Defense.
1. Scope* 1.5 When this document is referenced in a metric product
2 specification,theyieldandtensilevaluesmaybedeterminedin
1.1 These test methods cover procedures and definitions
inch-pound (ksi) units then converted into SI (MPa) units.The
forthemechanicaltestingofsteels,stainlesssteels,andrelated
elongation determined in inch-pound gauge lengths of 2 or 8
alloys. The various mechanical tests herein described are used
in. may be reported in SI unit gauge lengths of 50 or 200 mm,
to determine properties required in the product specifications.
respectively, as applicable. Conversely, when this document is
Variations in testing methods are to be avoided, and standard
referenced in an inch-pound product specification, the yield
methods of testing are to be followed to obtain reproducible
and tensile values may be determined in SI units then con-
and comparable results. In those cases in which the testing
verted into inch-pound units. The elongation determined in SI
requirementsforcertainproductsareuniqueoratvariancewith
unit gauge lengths of 50 or 200 mm may be reported in
these general procedures, the product specification testing
inch-pound gauge lengths of 2 or 8 in., respectively, as
requirements shall control.
applicable.
1.2 The following mechanical tests are described:
1.6 Attention is directed to ISO/IEC 17025 when there may
Sections
be a need for information on criteria for evaluation of testing
Tension 6 to 14
Bend 15 laboratories.
Hardness 16
1.7 This standard does not purport to address all of the
Brinell 17
Rockwell 18
safety concerns, if any, associated with its use. It is the
Portable 19
responsibility of the user of this standard to establish appro-
Impact 20 to 29
priate safety and health practices and determine the applica-
Keywords 30
bility of regulatory limitations prior to use.
1.3 Annexes covering details peculiar to certain products
are appended to these test methods as follows:
2. Referenced Documents
Annex
3
2.1 ASTM Standards:
Bar Products A1.1
Tubular Products Annex A2
A623Specification for Tin Mill Products, General Require-
Fasteners Annex A3
ments
Round Wire Products Annex A4
A623MSpecification for Tin Mill Products, General Re-
Significance of Notched-Bar Impact Testing Annex A5
Converting Percentage Elongation of Round Specimens to Annex A6
quirements [Metric]
Equivalents for Flat Specimens
A703/A703M Specification for Steel Castings, General
Testing Multi-Wire Strand Annex A7
Requirements, for Pressure-Containing Parts
Rounding of Test Data Annex A8
Methods for Testing Steel Reinforcing Bars Annex A9
A781/A781MSpecification for Castings, Steel and Alloy,
Procedure for Use and Control of Heat-Cycle Simulation Annex A10
Common Requirements, for General Industrial Use
1.4 The values stated in inch-pound units are to be regarded
A833Practice for Indentation Hardness of Metallic Materi-
as the standard.
als by Comparison Hardness Testers
A956Test Method for Leeb Hardness Testing of Steel
Products
1
These test methods and definitions are under the jurisdiction of ASTM
A1038Test Method for Portable Hardness Testing by the
Committee A01 on Steel, Stainless Steel and Related Alloys and are the direct
Ultrasonic Contact Impedance Method
responsibility of Subcommittee A01.13 on Mechanical and Chemical Testing and
Processing Methods of Steel Products and Processes.
Current edition approved May 15, 2014. Published July 2014. Originally
3
approved in 1953. Last previous edition approved in 2013 as A370–13. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/A0370-14. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-370 in Section II of that Code. 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 ----------------------
A370−14
E4Practices for Force Verification of Testing Machines occur for valid reasons besides deficiency of the original
E6Terminology Relating to Methods of Mechanical Testing as-fabricate
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: A370 − 13 A370 − 14
Standard Test Methods and Definitions for
1
Mechanical Testing of Steel Products
This standard is issued under the fixed designation A370; 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 U.S. Department of Defense.
1. Scope*
2
1.1 These test methods cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys.
The various mechanical tests herein described are used to determine properties required in the product specifications. Variations
in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable
results. In those cases in which the testing requirements for certain products are unique or at variance with these general
procedures, the product specification testing requirements shall control.
1.2 The following mechanical tests are described:
Sections
Tension 6 to 14
Bend 15
Hardness 16
Brinell 17
Rockwell 18
Portable 19
Impact 20 to 29
Keywords 30
Sections
Tension 6 to 14
Bend 15
Hardness 16
Brinell 17
Rockwell 18
Portable 19
Impact 20 to 29
Keywords 30
1.3 Annexes covering details peculiar to certain products are appended to these test methods as follows:
Annex
Bar Products A1.1
Tubular Products Annex A2
Fasteners Annex A3
Round Wire Products Annex A4
Significance of Notched-Bar Impact Testing Annex A5
Converting Percentage Elongation of Round Specimens to Annex A6
Equivalents for Flat Specimens
Testing Multi-Wire Strand Annex A7
Rounding of Test Data Annex A8
Methods for Testing Steel Reinforcing Bars Annex A9
Procedure for Use and Control of Heat-Cycle Simulation Annex A10
Annex
Bar Products A1.1
Tubular Products Annex A2
Fasteners Annex A3
Round Wire Products Annex A4
Significance of Notched-Bar Impact Testing Annex A5
1
These test methods and definitions are under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and are the direct responsibility of
Subcommittee A01.13 on Mechanical and Chemical Testing and Processing Methods of Steel Products and Processes.
Current edition approved Nov. 15, 2013May 15, 2014. Published April 2014July 2014. Originally approved in 1953. Last previous edition approved in 20122013 as
A370 – 12a.A370 – 13. DOI: 10.1520/A0370-13.10.1520/A0370-14.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-370 in Section II of that Code.
*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 ----------------------
A370 − 14
Converting Percentage Elongation of Round Specimens to Annex A6
Equivalents for Flat Specimens
Testing Multi-Wire Strand Annex A7
Rounding of Test Data Annex A8
Methods for Testing Steel Reinforcing Bars Annex A9
Procedure for Use and Control of Heat-Cycle Simulation Annex A10
1.4 The values stated in inch-pound units are to be regarded as the standard.
1.5 When this document is referenced in a metric product specification, the yield and tensile values may be determined in
inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 or 8 in.
may be reported in SI unit gauge lengths of 50 or 200 mm, respectively, as applicable. Conversely, when this document is
referenced in an inch-pound product specification, the yield and tensile values may be determined in SI units then converted into
inch-pound units. The elongation determined in SI unit gauge lengths of 50 or 200 mm may be reported in inch-pound gauge
lengths of 2 or 8 in., respectively, as applicable.
1.6 Attention is directed to ISO/IEC 17025 when there may be a need for information on criteria for evaluation of testing
laboratories.
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
3
2.1 ASTM Standards:
A623 Specification for Tin Mill Products, General Requirements
A623M Specification for Tin Mill
...