Designation: A 1035/A 1035M – 06
Standard Specification for
Deformed and Plain, Low-carbon, Chromium, Steel Bars for
Concrete Reinforcement
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This standard is issued under the fixed designation A 1035/A 1035M; 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.
1. Scope*
1.1 This specification covers low-carbon, chromium, steel
bars, deformed and plain for concrete reinforcement in cut
lengths and coils. The standard sizes and dimensions of
deformed bars and their number designations are given in
Table 1. The text of this specification references notes and
footnotes which provide explanatory material. These notes and
footnotes (excluding those in tables and figures) shall not be
considered as requirements of the specification.
1.2 Bars are of a single minimum yield strength level as
defined in
9.2: namely, 100 000 psi [690 MPa].
NOTE 1—Caution: Designers need to be aware that typical design
standards limit the design strength to 80 000 psi [550 MPa], except for
prestressing steel. Members reinforced with bars with yield strengths that
are considerably above 80 000 psi [550 MPa] may exhibit behavior that
differs from that expected of conventional reinforced concrete members or
may require special detailing to ensure adequate performance at service
and factored loads.
1.3 Deformed bars shall have a minimum yield strength and
other tensile properties in accordance with
Table 2. Hot-rolled
plain rounds in sizes up to and including 2.25 in. [57.2 mm] in
diameter in coils or cut lengths when specified for dowels,
spirals, structural ties or bar supports shall be furnished under
this specification and shall also meet the tensile properties
requirements of
Table 2. Ductility properties for plain rounds
shall be those of the nearest smaller nominal diameter de-
formed bar size in
Table 2. Requirements covering deformation
dimensions and marking are not applicable to plain rounds.
NOTE 2—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.
1.4 This specification is applicable for orders in either
inch-pound units (as Specification A 1035) or in SI units (as
Specification A 1035M).
1.5 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 inde-
pendently of the other. Combining values from the two systems
may result in nonconformance with the specification.
2. Referenced Documents
2.1 ASTM Standards:
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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 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
2.2 U.S. Military Standard:
MIL STD-129 Marking for Shipment and Storage
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2.3 U.S. Federal Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
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3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 deformations, n—protrusions on a deformed bar.
3.1.2 deformed bar, n—steel bar with protrusions; a bar that
is intended for use as reinforcement in reinforced concrete
construction.
3.1.2.1 Discussion—The surface of the bar is provided with
lugs or protrusions that inhibit longitudinal movement of the
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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 March 1, 2006. Published March 2006. Originally
approved in 2004. Last previous edition approved in 2005 as A 1035/A 1035M – 05.
2
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.
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Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. Or visit: http://
assist.daps.dla.mil/online.
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*A Summary of Changes section appears at the end of this standard.
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