ASTM A706/A706M-16

Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement

ABSTRACT
This specification covers deformed and plain low-alloy steel bars in cut lengths or coils for concrete reinforcement intended for applications. Restrictive mechanical properties and chemical composition are required for compatibility with controlled tensile property applications or to enhance weldability. The steel shall be electric-furnace, basic-oxygen, or open-hearth processed. Tension test, bend test, and one set of dimensional property tests including bar weight and spacing, height, and gap of deformations shall be made of each bar size rolled from a heat. All tests and inspection shall be made at the place of manufacture prior to shipment, unless otherwise specified, and shall be conducted so as not to interfere unnecessarily with the operation of the works. A retest shall be provided when the specimen fails to meet the strength and elongation property requirements of the specification.
SCOPE
1.1 General—This specification covers deformed and plain low-alloy steel bars in cut lengths and coils for concrete reinforcement intended for applications where restrictive mechanical properties and chemical composition are required for compatibility with controlled tensile property applications or to enhance weldability. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1. (A) The nominal dimensions of a deformed bar are equivalent to those of a plain round bar having the same weight [mass] per foot [metre] as the deformed bar.  
1.2 Grade—Bars are of two minimum yield strength levels: namely, 60 000 psi [420 MPa] and 80 000 psi [550 MPa], designated as Grade 60 [420] and Grade 80 [550], respectively.  
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. 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.  
1.4 Controlled Tensile Properties—This specification limits tensile properties (Table 2) to provide the desired yield/tensile properties for controlled tensile property applications. (A) Tensile strength shall not be less than 1.25 times the actual yield strength.  
1.5 Welding—This specification limits chemical composition (6.2) and carbon equivalent (6.4) to enhance the weldability of the material. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. The use of the latest edition of AWS D1.4/D1.4M is recommended. The AWS D1.4/D1.4M Welding Code describes the proper selection of the filler metals, preheat/interpass temperatures, as well as, performance and procedure qualification requirements.  
1.6 Requirements for alternate bar sizes are presented in Annex A1. The requirements in Annex A1 only apply when specified by the purchaser (see 4.2.5).  
1.7 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes, excluding those in tables, shall not be considered as requirements of this specification.  
1.8 This specification is applicable for orders in either inch-pound units (Specification A706) or in SI units [Specification A706M].  
1.9 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with this specification.  
1.10 This specification 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 specification to establish appropriate safety and health practices and det...

General Information

• Status: Historical
• Publication Date: 14-Jan-2016
• 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)

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: A706/A706M −16
Standard Specification for
Deformed and Plain Low-Alloy Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designationA706/A706M; 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* 1.7 The text of this specification references notes and
footnotes that provide explanatory material. These notes and
1.1 General—This specification covers deformed and plain
footnotes, excluding those in tables, shall not be considered as
low-alloy steel bars in cut lengths and coils for concrete
requirements of this specification.
reinforcement intended for applications where restrictive me-
chanical properties and chemical composition are required for
1.8 This specification is applicable for orders in either
compatibilitywithcontrolledtensilepropertyapplicationsorto inch-pound units (Specification A706) or in SI units [Specifi-
enhance weldability. The standard sizes and dimensions of
cation A706M].
deformed bars and their number designations are given in
1.9 The values stated in either inch-pound units or SI units
Table 1.
are to be regarded separately as standard. Within the text, the
1.2 Grade—Bars are of two minimum yield strength levels:
SI units are shown in brackets. The values stated in each
namely, 60 000 psi [420 MPa] and 80 000 psi [550 MPa],
system may not be exact equivalents; therefore, each system
designated as Grade 60 [420] and Grade 80 [550], respectively.
shall be used independently of the other. Combining values
1
from the two systems may result in non-conformance with this
1.3 Plainbars,insizesuptoandincluding2 ⁄2in.[63.5mm]
specification.
in diameter in coils or cut lengths, when ordered, shall be
furnished under this specification. For ductility properties
1.10 This specification does not purport to address all of the
(elongation and bending), test provisions of the nearest smaller
safety concerns, if any, associated with its use. It is the
nominal diameter deformed bar size shall apply. Requirements
responsibility of the user of this specification to establish
providing for deformations and marking shall not be appli-
appropriate safety and health practices and determine the
cable.
applicability of regulatory limitations prior to use.
1.4 Controlled Tensile Properties—This specification limits
2. Referenced Documents
tensile properties (Table 2) to provide the desired yield/tensile
2
properties for controlled tensile property applications.
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled
1.5 Welding—This specification limits chemical composi-
Structural Steel Bars, Plates, Shapes, and Sheet Piling
tion (6.2) and carbon equivalent (6.4) to enhance the weldabil-
A370 Test Methods and Definitions for Mechanical Testing
ity of the material. When this steel is to be welded, a welding
of Steel Products
procedure suitable for the chemical composition and intended
A510/A510M Specification for General Requirements for
use or service should be used. The use of the latest edition of
Wire Rods and Coarse Round Wire, Carbon Steel, and
AWS D1.4⁄D1.4M is recommended. The AWS D1.4/D1.4M
Alloy Steel
Welding Code describes the proper selection of the filler
A615/A615M SpecificationforDeformedandPlainCarbon-
metals, preheat/interpass temperatures, as well as, performance
Steel Bars for Concrete Reinforcement
and procedure qualification requirements.
A700 Guide for Packaging, Marking, and Loading Methods
1.6 Requirements for alternate bar sizes are presented in
for Steel Products for Shipment
Annex A1. The requirements in Annex A1 only apply when
A751 Test Methods, Practices, and Terminology for Chemi-
specified by the purchaser (see 4.2.5).
cal Analysis of Steel Products
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
2
A01.05 on Steel Reinforcement. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 15, 2016. Published March 2016. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1974. Last previous edition approved in 2015 as A706/A706M – 15. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A0706_A0706M-16. 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
...

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: A706/A706M − 15 A706/A706M − 16
Standard Specification for
Deformed and Plain Low-Alloy Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designation A706/A706M; 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 General—This specification covers deformed and plain low-alloy steel bars in cut lengths and coils for concrete
reinforcement intended for applications where restrictive mechanical properties and chemical composition are required for
compatibility with controlled tensile property applications or to enhance weldability. The standard sizes and dimensions of
deformed bars and their number designations are given in Table 1.
1.2 Grade—Bars are of two minimum yield strength levels: namely, 60 000 psi [420 MPa] and 80 000 psi [550 MPa],
designated as Grade 60 [420] and Grade 80 [550], respectively.
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. 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.
1.4 Controlled Tensile Properties—This specification limits tensile properties (Table 2) to provide the desired yield/tensile
properties for controlled tensile property applications.
1.5 Welding—This specification limits chemical composition (6.2) and carbon equivalent (6.4) to enhance the weldability of the
material. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service
should be used. The use of the latest edition of AWS D1.4 ⁄D1.4M is recommended. The AWS D1.4/D1.4M Welding Code
describes the proper selection of the filler metals, preheat/interpass temperatures, as well as, performance and procedure
qualification requirements.
1.6 Requirements for alternate bar sizes are presented in Annex A1. The requirements in Annex A1 only apply when specified
by the purchaser (see 4.2.44.2.5).
1.7 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes,
excluding those in tables, shall not be considered as requirements of this specification.
1.8 This specification is applicable for orders in either inch-pound units (Specification A706) or in SI units [Specification
A706M].
1.9 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 may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with this specification.
1.10 This specification 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 specification to establish appropriate safety and health practices and determine the applicability
of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
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 July 1, 2015Jan. 15, 2016. Published September 2015March 2016. Originally approved in 1974. Last previous edition approved in 20142015
as A706/A706M – 14.A706/A706M – 15. DOI: 10.1520/A0706_A0706M-15.10.1520/A0706_A0706M-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
1

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A706/A706M −
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