ASTM A706/A706M-04b

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Designation: A 706/A 706M – 04b
Standard Specification for
Low-Alloy Steel Deformed and Plain Bars for Concrete
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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 (e) 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* 1.7 The values stated in either inch-pound units or SI units
are to be regarded as standard. Within the text, the SI units are
1.1 General—This specification covers deformed and plain
shown in brackets. The values stated in each system are not
low-alloy steel bars in cut lengths or coils for concrete
exact equivalents; therefore, each system must be used inde-
reinforcement intended for applications where restrictive me-
pendentlyoftheother.Combiningvaluesfromthetwosystems
chanical properties and chemical composition are required for
may result in nonconformance with this specification.
compatibilitywithcontrolledtensilepropertyapplicationsorto
enhance weldability. The standard sizes and dimensions of
2. Referenced Documents
deformed bars and their number designations are given in
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2.1 ASTM Standards:
Table 1. The text of this specification references notes and
A 6/A 6M Specification for General Requirements for
footnotes that provide explanatory material. These notes and
Rolled Structural Steel Bars, Plates, Shapes, and Steel
footnotes, excluding those in tables and figures, shall not be
Piling
considered as requirements of this specification.
A 370 Test Methods and Definitions for MechanicalTesting
1.2 Grade—Bars are of a single minimum yield strength
of Steel Products
level: namely, 60 000 psi [420 MPa], designated as Grade 60
A 510 Specification for General Requirements for Wire
[420].
1 Rods and Coarse Round Wire, Carbon Steel
1.3 Plain rounds, in sizes up to and including 2 ⁄2 in. [63.5
A 510M Specification for General Requirements for Wire
mm] in diameter in coils or cut lengths, when ordered, shall be
Rods and Coarse Round Wire, Carbon Steel (Metric)
furnished under this specification. For ductility properties
A615/A615M SpecificationforDeformedandPlainBillet-
(elongation and bending), test provisions of the nearest smaller
Steel Bars for Concrete Reinforcement
nominal diameter deformed bar size shall apply.
A 700 Practices for Packaging, Marking, and Loading
1.4 Controlled Tensile Properties—This specification limits
Methods for Steel Products for Domestic Shipment
mechanical properties (Table 2) to provide the desired yield/
A 706/A 706M Specification for Low-Alloy Steel De-
tensile properties for controlled tensile property applications.
formed and Plain Bars for Concrete Reinforcement
1.5 Welding—This specification limits chemical composi-
A 751 Test Methods, Practices, and Terminology for
tion (6.2) and carbon equivalent (6.4) to enhance the weldabil-
Chemical Analysis of Steel Products
ity of the material. When steel is to be welded, a welding
E 29 Practice for Using Significant Digits in Test Data to
procedure suitable for the chemical composition and intended
Determine Conformance with Specifications
use or service should be used. The use of the latest edition of
2.2 ANSI/AWS Standard:
ANSI/AWS D1.4 is recommended. This document describes
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AWS D1.4 Structural Welding Code—Reinforcing Steel
the proper selection of the filler metals, preheat/interpass
2.3 Government Standards:
temperatures, as well as, performance and procedure qualifi-
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MIL-STD-129 Marking for Shipment and Storage
cation requirements.
1.6 This specification is applicable for orders in either
inch-pound units (Specification A 706) or in SI units [Specifi-
cation A 706M].
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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
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, the ASTM website.
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Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee Available from theAmerican Welding Society, P.O. Box 351040, 550 N.W. Le
A01.05 on Steel Reinforcement. Jeune Rd., Miami, FL 33126.
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Current edition approved Oct. 1, 2004. Published October 2004. Originally AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
approved in 1974. Last previous edition approved in 2004 asA 706/A 706M – 04a. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
*ASummary of Changes section appears at the end of this standard.
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