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ASTM A1035/A1035M-04

ASTM A1035/A1035M-04

Standard Specification for Deformed and Plain, Low-carbon, Chromium, Steel Bars for Concrete Reinforcement

2017-08-16 /Historical
Superseeded by:

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.

concrete reinforcement; deformations (protrusions); low-carbon, chromium steel bars
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