ASTM A529/A529M-19
(Specification)Standard Specification for High-Strength Carbon-Manganese Steel of Structural Quality
Standard Specification for High-Strength Carbon-Manganese Steel of Structural Quality
ABSTRACT
This specification covers high-strength carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes. Materials considered here are available in Grades 50 [345] and 55 [380]. Steel specimens shall be killed, and as such, be affirmed in the corresponding test report. Heat and product analysis shall be performed wherein steel materials shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, silicon, copper, columbium, chromium, nickel, molybdenum, and vanadium. Steel specimens shall also undergo tensile tests and shall conform to required values of tensile strength, yield strength, and elongation.
SCOPE
1.1 This specification covers carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes.
1.2 Material under this specification is available in two grades:
Grade
Yield Strength,
ksi [MPa]
Thickness
50 [345]
50 [345]
Plates to 1 in. [25 mm] thick
to 15 in. [380 mm] wide
Bars to 31/2 in. [90 mm]
Shapes with flange or leg thickness to
11/2 in. [40 mm] inclusive
55 [380]
55 [380]
Plates to 1 in. [25 mm] thick
to 15 in. [380 mm] wide
Bars to 3 in. [75 mm]
Shapes with flange or leg thickness to
11/2 in. [40 mm] inclusive
1.3 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.
1.4 The values stated in either inch-pound units or SI units are to be regarded 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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
- Status
- Published
- Publication Date
- 30-Apr-2019
- Technical Committee
- A01 - Steel, Stainless Steel and Related Alloys
Relations
- Effective Date
- 01-Mar-2024
- Effective Date
- 01-Nov-2023
- Effective Date
- 01-Nov-2017
- Effective Date
- 15-Nov-2016
- Effective Date
- 01-May-2016
- Effective Date
- 01-May-2014
- Effective Date
- 01-Oct-2013
- Effective Date
- 01-May-2013
- Effective Date
- 01-Nov-2012
- Effective Date
- 01-Mar-2012
- Effective Date
- 01-Apr-2011
- Effective Date
- 01-Oct-2010
- Effective Date
- 01-Apr-2010
- Effective Date
- 01-Apr-2009
- Effective Date
- 01-Nov-2008
Overview
ASTM A529/A529M-19 is a standard specification developed by ASTM International for high-strength carbon-manganese steel of structural quality. This standard covers shapes, plates, and bars designed for use in riveted, bolted, or welded construction, particularly in buildings and in general structural applications. The materials specified are offered in two grades, Grade 50 [345 MPa] and Grade 55 [380 MPa], and are suitable for both inch-pound and metric unit use. These steel products are widely used by structural engineers, fabricators, and construction professionals for reliable and consistent performance.
Key Topics
- Material Grades: The standard specifies two grades:
- Grade 50 [345 MPa]: Minimum yield strength of 50 ksi, suitable for plates up to 1 in. [25 mm] thick, bars up to 3.5 in [90 mm], and shapes with flange or leg thickness up to 1.5 in. [40 mm].
- Grade 55 [380 MPa]: Minimum yield strength of 55 ksi, applicable for slightly narrower dimensions.
- Steel Composition: Requirements for chemical elements such as carbon, manganese, phosphorus, sulfur, silicon, and, where specified, copper.
- Manufacturing Requirements: Steel must be fully killed (deoxidized), confirmed through the test report. Supplementary requirements are available for enhanced quality and traceability.
- Mechanical Properties:
- Tensile strength requirements: Ensured to meet the demanding needs of structural applications.
- Elongation and ductility: Verified through standardized tension tests.
- Testing and Analysis: Includes heat and product analysis, as well as mandatory tensile testing according to applicable ASTM protocols.
- Weldability: The standard presupposes use of suitable welding procedures specific to the grade and application, referencing further guidance in ASTM A6/A6M.
Applications
ASTM A529/A529M-19 steel is widely used in structural steel applications, including:
- Building Construction: For primary framing members such as beams, columns, and trusses in commercial, industrial, and institutional buildings.
- Infrastructure Projects: In bridges, metal building systems, and similar structures requiring high-strength, durable steel.
- General Structural Use: For fabrication of components that need to retain strength when connected by welding, bolting, or riveting.
- Retrofit and Repair: The reliable mechanical properties make it a preferred standard for repair and strengthening of existing structures.
The combination of high strength and controlled chemical composition ensures structural safety, design flexibility, and good performance in demanding load-bearing environments.
Related Standards
When selecting or specifying steel for structural applications, the following related ASTM standards are often referenced in conjunction with ASTM A529/A529M-19:
- ASTM A6/A6M: Specification for the general requirements for rolled structural steel bars, plates, shapes, and sheet piling. This standard provides common requirements referenced in this standard.
- ASTM A36/A36M: Standard for carbon structural steel, often used for comparison or in projects requiring lower yield strength.
- ASTM A992/A992M: Standard for steel used in wide flange shapes and common for modern steel construction.
- ASTM A572/A572M: Specification for high-strength low-alloy columbium-vanadium structural steel, which may be considered for similar applications depending on grade and design requirements.
For optimal results in structural design and fabrication, always ensure compliance with ASTM and other relevant standards to meet performance, durability, and safety objectives.
Keywords: ASTM A529, carbon-manganese steel, structural quality steel, high-strength steel, steel shapes, steel plates, steel bars, structural steel standard, building construction steel, bolted construction, welded construction, riveted construction, steel material specification.
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Frequently Asked Questions
ASTM A529/A529M-19 is a technical specification published by ASTM International. Its full title is "Standard Specification for High-Strength Carbon-Manganese Steel of Structural Quality". This standard covers: ABSTRACT This specification covers high-strength carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes. Materials considered here are available in Grades 50 [345] and 55 [380]. Steel specimens shall be killed, and as such, be affirmed in the corresponding test report. Heat and product analysis shall be performed wherein steel materials shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, silicon, copper, columbium, chromium, nickel, molybdenum, and vanadium. Steel specimens shall also undergo tensile tests and shall conform to required values of tensile strength, yield strength, and elongation. SCOPE 1.1 This specification covers carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes. 1.2 Material under this specification is available in two grades: Grade Yield Strength, ksi [MPa] Thickness 50 [345] 50 [345] Plates to 1 in. [25 mm] thick to 15 in. [380 mm] wide Bars to 31/2 in. [90 mm] Shapes with flange or leg thickness to 11/2 in. [40 mm] inclusive 55 [380] 55 [380] Plates to 1 in. [25 mm] thick to 15 in. [380 mm] wide Bars to 3 in. [75 mm] Shapes with flange or leg thickness to 11/2 in. [40 mm] inclusive 1.3 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. 1.4 The values stated in either inch-pound units or SI units are to be regarded 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. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ABSTRACT This specification covers high-strength carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes. Materials considered here are available in Grades 50 [345] and 55 [380]. Steel specimens shall be killed, and as such, be affirmed in the corresponding test report. Heat and product analysis shall be performed wherein steel materials shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, silicon, copper, columbium, chromium, nickel, molybdenum, and vanadium. Steel specimens shall also undergo tensile tests and shall conform to required values of tensile strength, yield strength, and elongation. SCOPE 1.1 This specification covers carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of buildings and for general structural purposes. 1.2 Material under this specification is available in two grades: Grade Yield Strength, ksi [MPa] Thickness 50 [345] 50 [345] Plates to 1 in. [25 mm] thick to 15 in. [380 mm] wide Bars to 31/2 in. [90 mm] Shapes with flange or leg thickness to 11/2 in. [40 mm] inclusive 55 [380] 55 [380] Plates to 1 in. [25 mm] thick to 15 in. [380 mm] wide Bars to 3 in. [75 mm] Shapes with flange or leg thickness to 11/2 in. [40 mm] inclusive 1.3 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. 1.4 The values stated in either inch-pound units or SI units are to be regarded 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. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM A529/A529M-19 is classified under the following ICS (International Classification for Standards) categories: 77.140.10 - Heat-treatable steels. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM A529/A529M-19 has the following relationships with other standards: It is inter standard links to ASTM A6/A6M-24, ASTM A6/A6M-23, ASTM A6/A6M-17a, ASTM A6/A6M-16a, ASTM A6/A6M-16, ASTM A6/A6M-14, ASTM A6/A6M-13a, ASTM A6/A6M-13, ASTM A6/A6M-12a, ASTM A6/A6M-12, ASTM A6/A6M-11, ASTM A6/A6M-10a, ASTM A6/A6M-10, ASTM A6/A6M-09, ASTM A6/A6M-08a. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM A529/A529M-19 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A529/A529M −19
Standard Specification for
High-Strength Carbon-Manganese Steel of Structural
Quality
This standard is issued under the fixed designationA529/A529M; 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. Referenced Documents
1.1 This specification covers carbon-manganese steel 2.1 ASTM Standards:
shapes, plates, and bars of structural quality for use in riveted, A6/A6M Specification for General Requirements for Rolled
bolted, or welded construction of buildings and for general Structural Steel Bars, Plates, Shapes, and Sheet Piling
structural purposes.
3. General Requirements for Delivery
1.2 Material under this specification is available in two
3.1 Material furnished under this specification shall con-
grades:
form to the requirements of the current edition of Specification
Yield Strength,
Grade Thickness A6/A6M, for the ordered material, unless a conflict exists in
ksi [MPa]
which case this specification shall prevail.
50 [345] 50 [345] Plates to 1 in. [25 mm] thick
to 15 in. [380 mm] wide 4. Materials and Manufacture
Barsto3 ⁄2 in. [90 mm]
4.1 The steel shall be killed, and such shall be confirmed by
Shapes with flange or leg thickness to
1 ⁄2 in. [40 mm] inclusive
astatementofkilledsteelonthetestreportorbyareportonthe
presence of a sufficient quantity of a strong deoxidizing
55 [380] 55 [380] Plates to 1 in. [25 mm] thick
element, such as silicon at 0.10 % or higher, or aluminum at
to 15 in. [380 mm] wide
Bars to 3 in. [75 mm]
0.015 % or higher.
Shapes with flange or leg thickness to
1 ⁄2 in. [40 mm] inclusive
5. Chemical Composition
1.3 When the steel is to be welded, it is presupposed that a
5.1 Heat Analysis:
welding procedure suitable for the grade of steel and intended
5.1.1 The heat analysis shall conform to the requirements
use or service will be utilized. See Appendix X3 of Specifica-
prescribed in Table 1 and be reported in accordance with
tion A6/A6M for information on weldability.
relevant sections of Specification A6/A6M.
1.4 The values stated in either inch-pound units or SI units
5.2 Product Analysis:
are to be regarded as standard. Within the text, the SI units are
5.2.1 The steel shall conform on product analysis to the
shown in brackets. The values stated in each system are not
requirements of Table 1, subject to the product analysis
exact equivalents; therefore, each system must be used inde-
tolerances in Specification A6/A6M.
pendently of the other.
6. Tension Test
1.5 This international standard was developed in accor-
6.1 The material as represented by the test specimen shall
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the conform to the requirements as to the tensile properties
prescribed in Table 2.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
7. Keywords
Barriers to Trade (TBT) Committee.
7.1 bars; bolted construction; carbon; frames; metal build-
ing systems; plates; riveted construction; shapes; steel; struc-
tural steel; trusses; welded construction
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved May 1, 2019. Published May 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1964. Last previous edition approved in 2014 as A529/A529M – 14. Standar
...
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: A529/A529M − 14 A529/A529M − 19
Standard Specification for
High-Strength Carbon-Manganese Steel of Structural
Quality
This standard is issued under the fixed designation A529/A529M; 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*
1.1 This specification covers carbon-manganese steel shapes, plates, and bars of structural quality for use in riveted, bolted, or
welded construction of buildings and for general structural purposes.
1.2 Material under this specification is available in two grades:
Yield Strength,
Grade Thickness
ksi [MPa]
50 [345] 50 [345] Plates to 1 in. [25 mm] thick
to 15 in. [380 mm] wide
Bars to 3 ⁄2 in. [90 mm]
Shapes with flange or leg thickness to
1 ⁄2 in. [40 mm] inclusive
55 [380] 55 [380] Plates to 1 in. [25 mm] thick
to 15 in. [380 mm] wide
Bars to 3 in. [75 mm]
Shapes with flange or leg thickness to
1 ⁄2 in. [40 mm] inclusive
1.3 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.
1.4 The values stated in either inch-pound units or SI units are to be regarded 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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
3. General Requirements for Delivery
3.1 Material furnished under this specification shall conform to the requirements of the current edition of Specification
A6/A6M, for the ordered material, unless a conflict exists in which case this specification shall prevail.
4. Materials and Manufacture
4.1 The steel shall be killed, and such shall be affirmed in the test report by the inclusion of confirmed by a statement of killed
steel,steel a value of 0.10 % or more for silicon content, or a value of 0.015 % or more for total aluminum content.on the test report
or by a report on the presence of a sufficient quantity of a strong deoxidizing element, such as silicon at 0.10 % or higher, or
aluminum at 0.015 % or higher.
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.02
on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Current edition approved Oct. 1, 2014May 1, 2019. Published October 2014May 2019. Originally approved in 1964. Last previous edition approved in 20092014 as
A529/A529M – 05 (2009).A529/A529M – 14. DOI: 10.1520/A0529_A0529M-14.10.1520/A0529_A0529M-19.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on 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
A529/A529M − 19
5. Chemical Composition
5.1 Heat Analysis:
5.1.1 The heat analysis shall conform to the requirements prescribed in Table 1 and be reported in accordance with relevant
sections of Specification A6/A6M.
5.1.2 In addition to the elements specified in Table 1, test reports shall include for information the chemical analysis for copper,
columbium, chromium, nickel, molybdenum, and vanadium. When the amount of copper, chromium, nickel, molybdenum, or
silicon is less than 0.02 %, the analysis may be reported as “<0.02 %.” When the amount of columbium or vanadium is less than
0.008 %, the analysis may be reported as “<0.008 %.”
5.2 Product Analysis:
5.2.1 The steel shall conform on product analysis to the requirements of Table 1, subject to the product analysis tolerances in
Specification A6/A6M.
6. Tension Test
6.1 The material as rep
...
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