ASTM A615/A615M-22

Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

ABSTRACT
This specification covers deformed and plain carbon-steel bars for concrete reinforcements in cut lengths and coils. Materials considered under this specification are available in Grades 40 [280], 60 [420] and 75 [520]. Steel samples shall be rolled from properly identified heats of mold cast or strand cast steel using electric-furnace, basic-oxygen, or open-hearth. Heat analysis shall be performed wherein steel materials shall conform to required compositions of carbon, manganese, phosphorus and sulfur. Steel specimens shall also undergo tensile tests and shall conform to required values of tensile strength, yield strength, and elongation. Steel samples shall also undergo deformation test, tension test and bend tests. Final products shall be marked by a tag.
SCOPE
1.1 This specification covers deformed and plain carbon-steel bars in cut lengths and coils for concrete reinforcement. Annex A2 of this specification covers deformed bars for use for other applications. Steel bars containing alloy additions, such as with the Association for Iron and Steel Technology and the Society of Automotive Engineers series of alloy steels, are permitted if the resulting product meets all the other requirements of this specification. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1.    
1.2 Unless specified for use for other applications in Annex A2, bars are of four minimum yield strength levels: namely, 40 000 psi [280 MPa], 60 000 psi [420 MPa], 80 000 psi [550 MPa], and 100 000 psi [690 MPa], designated as Grade 40 [280], Grade 60 [420], Grade 80 [550], and Grade 100 [690], respectively.
Note 1: Grade 100 [690] reinforcing bars were introduced in this specification in 2015. In contrast to the lower grades, which have ratios of specified tensile strength to specified yield strength that range from 1.25 to 1.50, Grade 100 [690] reinforcing bars have a ratio of specified tensile strength to specified yield strength of 1.15. Users of this specification should be aware that there will, therefore, be a lower margin of safety and reduced warning of failure following yielding when Grade 100 [690] bars are used in structural members where strength is governed by the tensile strength of the reinforcement, primarily in beams and slabs. As a result of the lower specified tensile strength to specified yield strength ratio of 1.15 for Grade 100 [690], users of this specification should be aware that ACI 318 Type 1 mechanical and welded splice requirements found in many acceptance criteria of 125 % of specified yield strength requirements in tension and compression are not applicable to Grade 100 [690]. Mechanical and welded splices should meet a minimum specified tensile strength of 115 000 psi [790 MPa] for Grade 100 [690].
Note 2: Users of this specification need to be aware that consensus design codes and specifications may not recognize the use of the No. 20 [64] bar, the largest bar included in this specification. Structural members reinforced with No. 20 [64] bars may require approval of the building official or other appropriate authority and require special detailing to ensure adequate performance at service and factored loads.  
1.3 Plain bars, in sizes up to and including 21/2 in. [63.5 mm] in diameter in coils or cut lengths, when ordered shall be furnished under this specification in Grade 40 [280], Grade 60 [420], Grade 80 [550], and Grade 100 [690]. For ductility properties (elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements providing for deformations and marking shall not be applicable.  
Note 3: Welding of the material in this specification should be approached with caution since no specific provisions have been included to enhance its weldability. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. T...

General Information

• Status: Published
• Publication Date: 30-Jun-2022
• ICS: 77.140.15 - Steels for reinforcement of concrete
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.05 - Steel Reinforcement

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: A615/A615M −22 American Association State Highway and
Transportation Officials Standard
AASHTO No.: M 31
Standard Specification for
Deformed and Plain Carbon-Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designationA615/A615M; 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.
design codes and specifications may not recognize the use of the No. 20
1. Scope*
[64] bar, the largest bar included in this specification. Structural members
1.1 This specification covers deformed and plain carbon-
reinforced with No. 20 [64] bars may require approval of the building
steel bars in cut lengths and coils for concrete reinforcement. official or other appropriate authority and require special detailing to
ensure adequate performance at service and factored loads.
AnnexA2ofthisspecificationcoversdeformedbarsforusefor
other applications. Steel bars containing alloy additions, such 1
1.3 Plainbars,insizesuptoandincluding2 ⁄2in.[63.5mm]
as with the Association for Iron and Steel Technology and the
in diameter in coils or cut lengths, when ordered shall be
Society of Automotive Engineers series of alloy steels, are
furnished under this specification in Grade 40 [280], Grade 60
permitted if the resulting product meets all the other require-
[420], Grade 80 [550], and Grade 100 [690]. For ductility
ments of this specification. The standard sizes and dimensions
properties (elongation and bending), test provisions of the
of deformed bars and their number designations are given in
nearest smaller nominal diameter deformed bar size shall
Table 1.
apply. Requirements providing for deformations and marking
shall not be applicable.
1.2 Unless specified for use for other applications in Annex
A2, bars are of four minimum yield strength levels: namely,
NOTE 3—Welding of the material in this specification should be
40 000 psi [280 MPa], 60 000 psi [420 MPa], 80 000 psi [550
approached with caution since no specific provisions have been included
MPa], and 100 000 psi [690 MPa], designated as Grade 40 to enhance its weldability. When this steel is to be welded, a welding
procedure suitable for the chemical composition and intended use or
[280], Grade 60 [420], Grade 80 [550], and Grade 100 [690],
service should be used. The use of the latest edition ofAWS D1.4 ⁄D1.4M
respectively.
is recommended. The AWS D1.4 ⁄D1.4M Welding Code describes the
proper selection of the filler metals and preheat/interpass temperatures, as
NOTE 1—Grade 100 [690] reinforcing bars were introduced in this
specification in 2015. In contrast to the lower grades, which have ratios of well as performance and procedure qualification requirements.
specified tensile strength to specified yield strength that range from 1.25
1.4 Requirements for alternate bar sizes are presented in
to 1.50, Grade 100 [690] reinforcing bars have a ratio of specified tensile
Annex A1. The requirements in Annex A1 only apply when
strength to specified yield strength of 1.15. Users of this specification
should be aware that there will, therefore, be a lower margin of safety and specified by the purchaser (see 4.2.4).
reduced warning of failure following yielding when Grade 100 [690] bars
1.5 The text of this specification references notes and
are used in structural members where strength is governed by the tensile
footnotes which provide explanatory material. These notes and
strength of the reinforcement, primarily in beams and slabs.As a result of
the lower specified tensile strength to specified yield strength ratio of 1.15
footnotes (excluding those in tables) shall not be considered as
for Grade 100 [690], users of this specification should be aware that ACI
requirements of the specification.
318 Type 1 mechanical and welded splice requirements found in many
acceptance criteria of 125 % of specified yield strength requirements in
1.6 This specification is applicable for orders in either
tension and compression are not applicable to Grade 100 [690]. Mechani-
inch-pound units (as Specification A615) or in SI units (as
cal and welded splices should meet a minimum specified tensile strength
Specification A615M).
of 115 000 psi [790 MPa] for Grade 100 [690].
NOTE 2—Users of this specification need to be aware that consensus
1.7 The values stated in either inch-pound units or SI units
are to be regarded separately as standard. Within
...

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: A615/A615M − 20 A615/A615M − 22 American Association State Highway and
Transportation Officials Standard
AASHTO No.: M 31
Standard Specification for
Deformed and Plain Carbon-Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designation A615/A615M; 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 deformed and plain carbon-steel bars in cut lengths and coils for concrete reinforcement. Annex A2
of this specification covers deformed bars for use for other applications. Steel bars containing alloy additions, such as with the
Association for Iron and Steel Technology and the Society of Automotive Engineers series of alloy steels, are permitted if the
resulting product meets all the other requirements of this specification. The standard sizes and dimensions of deformed bars and
their number designations are given in Table 1.
1.2 Unless specified for use for other applications in Annex A2, bars are of four minimum yield strength levels: namely, 40 000
psi [280 MPa], 60 000 psi [420 MPa], 80 000 psi [550 MPa], and 100 000 psi [690 MPa], designated as Grade 40 [280], Grade
60 [420], Grade 80 [550], and Grade 100 [690], respectively.
NOTE 1—Grade 100 [690] reinforcing bars were introduced in this specification in 2015. In contrast to the lower grades, which have ratios of specified
tensile strength to specified yield strength that range from 1.25 to 1.50, Grade 100 [690] reinforcing bars have a ratio of specified tensile strength to
specified yield strength of 1.15. Users of this specification should be aware that there will, therefore, be a lower margin of safety and reduced warning
of failure following yielding when Grade 100 [690] bars are used in structural members where strength is governed by the tensile strength of the
reinforcement, primarily in beams and slabs. As a result of the lower specified tensile strength to specified yield strength ratio of 1.15 for Grade 100 [690],
users of this specification should be aware that ACI 318 Type 1 mechanical and welded splice requirements found in many acceptance criteria of 125
% of specified yield strength requirements in tension and compression are not applicable to Grade 100 [690]. Mechanical and welded splices should meet
a minimum specified tensile strength of 115 000 psi [790 MPa] for Grade 100 [690].
NOTE 2—Users of this specification need to be aware that consensus design codes and specifications may not recognize the use of the No. 20 [64] bar,
the largest bar included in this specification. Structural members reinforced with No. 20 [64] bars may require approval of the building official or other
appropriate authority and require special detailing to ensure adequate performance at service and factored loads.
1
1.3 Plain bars, in sizes up to and including 2 ⁄2 in. [63.5 mm] in diameter in coils or cut lengths, when ordered shall be furnished
under this specification in Grade 40 [280], Grade 60 [420], Grade 80 [550], and Grade 100 [690]. For ductility properties
(elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements
providing for deformations and marking shall not be applicable.
NOTE 3—Welding of the material in this specification should be approached with caution since no specific provisions have been included to enhance its
weldability. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. The
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 A01.05
on Steel Reinforcement.
Current edition approved April 1, 2020July 1, 2022. Published April 2020July 2022. Originally approved in 1968. Last previous edition approved in 20182020 as
ɛ1
A615/A615M – 18A615/A615M – 20. . DOI: 10.1520/A0615_A0615M-20.10.1520/A0615_A0615M-22.
*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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