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ASTM A 1035/A 1035M Document Information:
Title
Standard Specification for Deformed and Plain, Low-carbon, Chromium, Steel Bars for Concrete Reinforcement
ASTM International
Publication Date:
Mar 1, 2007
Scope:
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.
Bars are of two minimum yield strength levels as defined in 9.2:
namely, 100 000 psi [690 MPa], and 120 000 [830 MPa] designated as
Grade 100 [690] and Grade 120 [830], respectively.
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 and for spiral transverse reinforcement.
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.
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 deformed 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.
This specification is applicable for orders in either inch-pound
units (as Specification A 1035) or in SI units (as Specification A
1035M).
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.
*A Summary of Changes section appears at the end of this
standard.
Keywords:
- concrete reinforcement
- deformations (protrusions)
- low-carbon
- chromium steel bars
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