ASTM A1035/A1035M-05
(Specification)Standard Specification for Deformed and Plain, Low-carbon, Chromium, Steel Bars for Concrete Reinforcement
Standard Specification for Deformed and Plain, Low-carbon, Chromium, Steel Bars for Concrete Reinforcement
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 . 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 : namely, 100 000 psi [690 MPa].
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 . 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 . Ductility properties for plain rounds shall be those of the nearest smaller nominal diameter deformed bar size in . Requirements covering deformation dimensions and marking are not applicable to plain rounds.
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 independently of the other. Combining values from the two systems may result in nonconformance with the specification.
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Designation: A 1035/A 1035M – 05
Standard Specification for
Deformed and Plain, Low-carbon, Chromium, Steel Bars for
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Concrete Reinforcement
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* 1.5 The values stated in either inch-pound units or SI units
are to be regarded as standard. Within the text, the SI units are
1.1 This specification covers low-carbon, chromium, steel
shown in brackets. The values stated in each system are not
bars, deformed and plain for concrete reinforcement in cut
exact equivalents; therefore, each system must be used inde-
lengths and coils. The standard sizes and dimensions of
pendentlyoftheother.Combiningvaluesfromthetwosystems
deformed bars and their number designations are given in
may result in nonconformance with the specification.
Table 1. The text of this specification references notes and
footnotes which provide explanatory material. These notes and
2. Referenced Documents
footnotes (excluding those in tables and figures) shall not be
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2.1 ASTM Standards:
considered as requirements of the specification.
A 6/A 6M Specification for General Requirements for
1.2 Bars are of a single minimum yield strength level as
Rolled Structural, Steel Bars, Plates, Shapes, and Sheet
defined in 9.2: namely, 100 000 psi [690 MPa].
Piling
NOTE 1—Caution: Designers need to be aware that typical design
A 370 Test Methods and Definitions for MechanicalTesting
standards limit the design strength to 80 000 psi [550 MPa], except for
of Steel Products
prestressing steel. Members reinforced with bars with yield strengths that
A 510/A 510M Specification for General Requirements for
are considerably above 80 000 psi [550 MPa] may exhibit behavior that
Wire Rods and Coarse Round Wire, Carbon Steel
differs from that expected of conventional reinforced concrete members or
A 700 Practices for Packaging, Marking, and Loading
may require special detailing to ensure adequate performance at service
and factored loads.
Methods for Steel Products for Domestic Shipment
A 751 Test Methods, Practices, and Terminology for
1.3 Deformed bars shall have a minimum yield strength and
Chemical Analysis of Steel Products
other tensile properties in accordance with Table 2. Hot-rolled
E29 Practice for Using Significant Digits in Test Data to
plain rounds in sizes up to and including 2.25 in. [57.2 mm] in
Determine Conformance with Specifications
diameter in coils or cut lengths when specified for dowels,
2.2 U.S. Military Standards:
spirals, structural ties or bar supports shall be furnished under
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MIL STD-129 Marking for Shipment and Storage
this specification and shall also meet the tensile properties
MILSTD-163 SteelMillProductsPreparationforShipment
requirements of Table 2. Ductility properties for plain rounds
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and Storage
shall be those of the nearest smaller nominal diameter de-
2.3 U.S. Federal Standard:
formedbarsizeinTable2.Requirementscoveringdeformation
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Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
dimensions and marking are not applicable to plain rounds.
NOTE 2—Welding of the material in this specification should be 3. Terminology
approached with caution since no specific provisions have been included
3.1 Definitions of Terms Specific to This Standard:
to enhance its weldability. When this steel is to be welded, a welding
3.1.1 deformations, n—protrusions on a deformed bar.
procedure suitable for the chemical composition and intended use or
3.1.2 deformed bar, n—steel bar with protrusions; a bar that
service should be used.
is intended for use as reinforcement in reinforced concrete
1.4 This specification is applicable for orders in either
construction.
inch-pound units (as Specification A 1035) or in SI units (as
3.1.2.1 Discussion—The surface of the bar is provided with
Specification A 1035M).
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, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
A01.05 on Steel Reinforcement. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved May 1, 2005. Published May 2005. Originally the ASTM website.
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approved in 2004. Last previous edition approved in 2004 as A 1035/ Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
e1
A 1035M – 04 . Section D, 700 Robb
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