ASTM A706/A706M-08a

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:A 706/A 706M–08 Designation: A 706/A 706M – 08a
Standard Specification for
Low-Alloy Steel Deformed and Plain Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designationA 706/A 706M; 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 Department of Defense.
1. Scope*
1.1 General—This specification covers deformed and plain low-alloy steel bars in cut lengths or 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 inTable 1.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.
1.2 Grade—Bars are of a single minimum yield strength level: namely, 60 000 psi [420 MPa], designated as Grade 60 [420].
1
1.3 Plain rounds,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.
1.4 Controlled Tensile Properties —This specification limits mechanical 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.Whensteelistobewelded,aweldingproceduresuitableforthechemicalcompositionandintendeduseorserviceshould
be used. The use of the latest edition of AWS D1.4/D1.4M is recommended. This document describes the proper selection of the
filler metals, preheat/interpass temperatures, as well as, performance and procedure qualification requirements.
1.6 This specification is applicable for orders in either inch-pound units (Specification A 706) or in SI units [Specification
A 706M].
1.7 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedasstandard.Withinthetext,theSIunitsareshown
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.
1.8 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
2
2.1 ASTM Standards:
A 6/A 6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
A 510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel (Metric)
A 615/A 615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A 700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.05
on Steel Reinforcement.
Current edition approved MayOct. 1, 2008. Published MayOctober 2008. Originally approved in 1974. Last previous edition approved in 20062008 as A 706/
A 706M – 06a8.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
*ASummary of Changes section appears at the end of this 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:A 706/A 706M–08 Designation: A 706/A 706M – 08a
Standard Specification for
Low-Alloy Steel Deformed and Plain Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designationA 706/A 706M; 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 Department of Defense.
1. Scope*
1.1 General—This specification covers deformed and plain low-alloy steel bars in cut lengths or 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 inTable 1.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.
1.2 Grade—Bars are of a single minimum yield strength level: namely, 60 000 psi [420 MPa], designated as Grade 60 [420].
1
1.3 Plain rounds,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.
1.4 Controlled Tensile Properties —This specification limits mechanical 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.Whensteelistobewelded,aweldingproceduresuitableforthechemicalcompositionandintendeduseorserviceshould
be used. The use of the latest edition of AWS D1.4/D1.4M is recommended. This document describes the proper selection of the
filler metals, preheat/interpass temperatures, as well as, performance and procedure qualification requirements.
1.6 This specification is applicable for orders in either inch-pound units (Specification A 706) or in SI units [Specification
A 706M].
1.7 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedasstandard.Withinthetext,theSIunitsareshown
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.
1.8 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
2
2.1 ASTM Standards:
A 6/A 6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
A 510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel (Metric)
A 615/A 615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement
A 700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.05
on Steel Reinforcement.
Current edition approved MayOct. 1, 2008. Published MayOctober 2008. Originally approved in 1974. Last previous edition approved in 20062008 as A 706/
A 706M – 06a8.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
*ASummary of Changes section appears at the end of this standa
...