ASTM A913/A913M-11

Standard Specification for High-Strength Low-Alloy Steel Shapes of Structural Quality, Produced by Quenching and Self-Tempering Process

ABSTRACT
This specification covers high-strength low-alloy steel shapes of structural quality, produced by quenching and self-tempering process (QST). The chemical analysis of the heat and of the steel product analysis shall conform to the chemical requirements prescribed by the reference materials. The Charpy V-notch test shall be performed to determine if the material conforms to the required tensile properties.
SCOPE
1.1 This specification covers high-strength low-alloy structural steel shapes in Grades 50 [345], 60 [415], 65 [450] and 70 [485], produced by the quenching and self-tempering process (QST). The shapes are intended for riveted, bolted or welded construction of bridges, buildings and other structures.
1.2 The QST process consists of in line heat treatment and cooling rate controls which result in mechanical properties in the finished condition that are equivalent to those attained using heat treating processes which entail reheating after rolling. A description of the QST process is given in Appendix X1.
1.3 Due to the inherent characteristics of the QST process, the shapes shall not be formed and post weld heat treated at temperatures exceeding 1100°F [600°C].
1.4 When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.
1.5 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

General Information

• Status: Historical
• Publication Date: 31-Oct-2011
• ICS: 77.140.70 - Steel profiles
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.02 - Structural Steel for Bridges, Buildings, Rolling Stock and Ships

Relations

• Replaces: ASTM A913/A913M-07 - Standard Specification for High-Strength Low-Alloy Steel Shapes of Structural Quality, Produced by Quenching and Self-Tempering Process (QST)
• Effective Date: 01-Nov-2011
• Replaced By: ASTM A913/A913M-14 - Standard Specification for High-Strength Low-Alloy Steel Shapes of Structural Quality, Produced by Quenching and Self-Tempering Process (QST)
• Effective Date: 01-May-2014
• Referred By: ASTM C1802-23 - Standard Specification for Design, Testing, Manufacture, Selection, and Installation of Horizontal Fabricated Metal Access Hatches for Utility, Water, and Wastewater Structures
• Effective Date: 01-Nov-2011
• Referred By: ASTM A709/A709M-21 - Standard Specification for Structural Steel for Bridges
• Effective Date: 01-Nov-2011

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:A913/A913M −11
StandardSpecification for
High-Strength Low-Alloy Steel Shapes of Structural Quality,
1
Produced by Quenching and Self-Tempering Process (QST)
This standard is issued under the fixed designationA913/A913M; 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* 2. Referenced Documents
3
2.1 ASTM Standards:
1.1 This specification covers high-strength low-alloy struc-
A6/A6M Specification for General Requirements for Rolled
turalsteelshapesinGrades50[345],60[415],65[450]and70
Structural Steel Bars, Plates, Shapes, and Sheet Piling
[485], produced by the quenching and self-tempering process
2
A673/A673M Specification for Sampling Procedure for Im-
(QST). The shapes are intended for riveted, bolted or welded
pact Testing of Structural Steel
construction of bridges, buildings and other structures.
A898/A898M Specification for Straight Beam Ultrasonic
1.2 The QST process consists of in line heat treatment and
Examination of Rolled Steel Structural Shapes
cooling rate controls which result in mechanical properties in
the finished condition that are equivalent to those attained 3. General Requirements for Delivery
using heat treating processes which entail reheating after
3.1 Material furnished under this specification shall con-
rolling.Adescription of the QST process is given in Appendix
form to the applicable requirements of the current edition of
X1.
Specification A6/A6M.
1.3 Due to the inherent characteristics of the QST process,
4. Materials and Manufacture
the shapes shall not be formed and post weld heat treated at
temperatures exceeding 1100°F [600°C]. 4.1 The shapes shall be produced by the quenching and
self-tempering process (QST). Self-tempering temperature
1.4 When the steel is to be welded, it is presupposed that a
shall be a minimum of 1100°F [600°C] and the self-tempering
welding procedure suitable for the grade of steel and intended
temperature for the material represented shall be reported on
use or service will be utilized. See Appendix X3 of Specifica-
the mill test report. See Appendix X1 for Process Description.
tion A6/A6M for information on weldability.
4.2 For grades 60 [415], 65 [450], and 70 [485], the
1.5 The values stated in either inch-pound units or SI units
requirements for fine austenitic grain size in Specification
are to be regarded separately as standard. Within the text, the
A6/A6M shall be met.
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system must
5. Chemical Composition
be used independently of the other. Combining values from the
5.1 The chemical analysis of the heat shall conform to the
two systems may result in nonconformance with this specifi-
requirements prescribed in Table 1.
cation.
5.2 The steel shall conform on product analysis to the
requirements prescribed in Table 1 subject to the product
analysis tolerances in Specification A6/A6M.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
6. Mechanical Properties
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Current edition approved Nov. 1, 2011. Published November 2011. Originally
6.1 Tensile Properties—The material as represented by the
approved in 1993. Last previous edition approved in 2007 as A913/A913M – 07.
test specimens shall conform to the tensile properties given in
DOI: 10.1520/A0913_A0913M-11.
2
Table 2.
The quenching and self-tempering process (QST) and the used apparatus are
covered by patents held by the Centre de Recherches Métallurgiques (CRM)—Rue
Ernest Solvay, 11, B 4000, Liège (Belgium). Interested parties are invited to submit
information regarding the identification of acceptable alternatives to these patented
3
items to the Committee on Standards,ASTM Headquarters, 100 Barr Harbor Drive, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
West Conshohocken, PA19428–2959. Comments will receive careful consideration contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
at the meeting of the responsible technical committee, which any interested party Standards volume information, refer to the standard’s Document Summary page on
may attend. 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

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A913/A913M−11
TABLE 1 Chemical Requir
...

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:A913/A913M–07 Designation: A913/A913M – 11
Standard Specification for
High-Strength Low-Alloy Steel Shapes of Structural Quality,
1
Produced by Quenching and Self-Tempering Process (QST)
This standard is issued under the fixed designationA913/A913M; 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*
1.1 Thisspecificationcovershigh-strengthlow-alloystructuralsteelshapesinGrades50[345],60[415],65[450]and70[485],
2
produced by the quenching and self-tempering process (QST). The shapes are intended for riveted, bolted or welded construction
of bridges, buildings and other structures.
1.2 The QST process consists of in line heat treatment and cooling rate controls which result in mechanical properties in the
finished condition that are equivalent to those attained using heat treating processes which entail reheating after rolling. A
description of the QST process is given in Appendix X1.
1.3 Due to the inherent characteristics of the QST process, the shapes shall not be formed and post weld heat treated at
temperatures exceeding 1100°F [600°C].
1.4 When the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use
or service will be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.
1.5 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used
independently of the other. Combining values from the two systems may result in nonconformance with this specification.
2. Referenced Documents
3
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A673/A673M Specification for Sampling Procedure for Impact Testing of Structural Steel
A898/A898M Specification for Straight Beam Ultrasonic Examination of Rolled Steel Structural Shapes
3. General Requirements for Delivery
3.1 Material furnished under this specification shall conform to the applicable requirements of the current edition of
Specification A6/A6M.
4. Materials and Manufacture
4.1 The shapes shall be produced by the quenching and self-tempering process (QST). Self-tempering temperature shall be a
minimum of 1100°F [600°C] and the self-tempering temperature for the material represented shall be reported on the mill test
report. See Appendix X1 for Process Description.
4.2 For grades 60 [415], 65 [450], and 70 [485], the requirements for fine austenitic grain size in Specification A6/A6M shall
be met.
5. Chemical Composition
5.1 The chemical analysis of the heat shall conform to the requirements prescribed in Table 1.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.02
on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Current edition approved Nov. 1, 2007.2011. Published November 2007.2011. Originally approved in 1993. Last previous edition approved in 20042007 as
A913/A913M – 047. DOI: 10.1520/A0913_A0913M-0711.
2
The quenching and self-tempering process (QST) and the used apparatus are covered by patents held by the Centre de Recherches Métallurgiques (CRM)—Rue Ernest
Solvay, 11, B 4000, Liège (Belgium). Interested parties are invited to submit information regarding the identification of acceptable alternatives to these patented items to the
Committee on Standards, ASTM Headquarters, 100 Barr Harbor Drive, West Conshohocken, PA 19428–2959. Comments will receive careful consideration at the meeting
of the responsible technical committee, which any interested party may attend.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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

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A913/A913M – 11
TABLE 1 Chemical Requirements (Heat Analysis)
Maximum
...