ASTM A1035/A1035M-04e1
(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].
Note—Designers need to be aware that typical design standards limit the design strength to 80 000 psi [550 MPa], and that deformed reinforcing bar with a material specified yield strength fy exceeding 60 000 psi [420 MPa] is permitted, providing fy is the stress corresponding to a strain of 0.35 %. 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.Note 1
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 – 04
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.
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e NOTE—The word “Caution” was added editorially to Note 1 in August 2004.
1. Scope 1.4 This specification is applicable for orders in either
inch-pound units (as Specification A 1035) or in SI units (as
1.1 This specification covers low-carbon, chromium, steel
Specification A 1035M).
bars, deformed and plain for concrete reinforcement in cut
1.5 The values stated in either inch-pound units or SI units
lengths and coils. The standard sizes and dimensions of
are to be regarded as standard. Within the text, the SI units are
deformed bars and their number designations are given in
shown in brackets. The values stated in each system are not
Table 1. The text of this specification references notes and
exact equivalents; therefore, each system must be used inde-
footnotes which provide explanatory material. These notes and
pendentlyoftheother.Combiningvaluesfromthetwosystems
footnotes (excluding those in tables and figures) shall not be
may result in nonconformance with the specification.
considered as requirements of the specification.
1.2 Bars are of a single minimum yield strength level as
2. Referenced Documents
defined in 9.2: namely, 100 000 psi [690 MPa].
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2.1 ASTM Standards:
NOTE 1—Caution: Designers need to be aware that typical design
A 6/A 6M Specification for General Requirements for
standards limit the design strength to 80 000 psi [550 MPa], and that
Rolled Structural, Steel Bars, Plates, Shapes, and Sheet
deformed reinforcing bar with a material specified yield strength f
y
Piling
exceeding 60 000 psi [420 MPa] is permitted, providing f is the stress
y
A 370 Test Methods and Definitions for MechanicalTesting
corresponding to a strain of 0.35 %. Members reinforced with bars with
of Steel Products
yield strengths that are considerably above 80 000 psi [550 MPa] may
exhibit behavior that differs from that expected of conventional reinforced
A 510/A 510M Specification for General Requirements for
concrete members or may require special detailing to ensure adequate
Wire Rods and Coarse Round Wire, Carbon Steel
performance at service and factored loads.
A 700 Practices for Packaging, Marking, and Loading
1.3 Deformed bars shall have a minimum yield strength and Methods for Steel Products for Domestic Shipment
other tensile properties in accordance with Table 2. Hot-rolled A 751 Test Methods, Practices, and Terminology for
plain rounds in sizes up to and including 2.25 in. [57.2 mm] in Chemical Analysis of Steel Products
diameter in coils or cut lengths when specified for dowels, E29 Practice for Using Significant Digits in Test Data to
spirals, structural ties or bar supports shall be furnished under Determine Conformance with Specifications
this specification and shall also meet the tensile properties 2.2 U.S. Military Standards:
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requirements of Table 2. Ductility properties for plain rounds MIL STD-129 Marking for Shipment and Storage
shall be those of the nearest smaller nominal diameter de- MILSTD-163 Steel Mill Products Preparation for Shipment
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formedbarsizeinTable2.Requirementscoveringdeformation and Storage
dimensions and marking are not applicable to plain rounds. 2.3 U.S. Federal Standard:
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Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
NOTE 2—Welding of the material in this specification should be
approached with caution since no specific provisions have been included
3. Terminology
to enhance its weldability. When this steel is to be welded, a welding
3.1 Definitions of Terms Specific to This Standard:
procedure suitable for the chemical composition and intended use or
service should be used.
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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
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, Standards volume information, refer to the standard’s Document Summary page on
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee the ASTM website.
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A01.05 on Steel Reinforcement. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Current edition approved July 1, 2004. Published July 2004. Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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