Standard Specification for Deformed and Plain Stainless Steel Bars for Concrete Reinforcement

SCOPE
1.1 This specification covers deformed and plain stainless steel bars for concrete reinforcement used in applications requiring resistance to corrosion or controlled magnetic permeability. The standard sizes and dimensions of deformed bars and their numerical designation shall be those listed 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.
1.1.1 Supplementary requirement (S1) of an optional nature is provided. It shall apply only when specified by the purchaser. In order to obtain a controlled magnetic permeability product, steel conforming to Supplementary Requirement S1 should be ordered.
1.2 The chemical composition of the stainless steel alloy shall be selected for suitability to the application involved by agreement between the manufacturer and the purchaser. This is an important consideration in achieving the desired corrosion resistance and/or controlled magnetic permeability.
Note 1—The alloys shown in Table 2 have found the most use in North America. These and other stainless steel alloys specified in A 276 or other specifications are available for consideration in product selection. Consult with the steel manufacturer for stainless steel alloy availability.
1.3 Bars are generally of three minimum yield levels, namely, 40 000 [300 MPa], 60 000 [420 MPa], and 75 000 psi [520 MPa], designated as Grade 40 [300], Grade 60 [420], and Grade 75 [520], respectively.
1.4 Plain rounds in sizes up to and including 2 in. [50.8 mm] in diameter, when specified for dowels, spirals, structural ties, and supports, shall be furnished under this specification in Grade 40 [300], Grade 60 [420], and Grade 75 [520], respectively. Bending properties, when required, shall be by agreement between the manufacturer and purchaser. Requirements providing for deformations and marking shall not be applicable to plain bars.
1.5 Weldability of most stainless steel compositions is generally good, however, pre-weld or post-weld procedures, or both, are necessary. Where material is to be welded, a welding procedure suitable for the chemical composition and intended use or service shall be used. Retesting of physical properties should be considered following welding procedures depending upon the steel composition and welding operation involved.
Note 2—It is recommended that the user consult the manufacturer for information available from the Nickel Development Institute (NIDI) (Toronto, Canada).
1.6 This specification is applicable for orders in either inch-pound units (as Specification A 955) or in SI units (as Specification A 955M).
1.7 The values stated in either inch-pound or SI units are to be regarded separately 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 shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

General Information

Status
Historical
Publication Date
30-Apr-2004
Current Stage
Ref Project

Relations

Buy Standard

Technical specification
ASTM A955/A955M-04ae1 - Standard Specification for Deformed and Plain Stainless Steel Bars for Concrete Reinforcement
English language
6 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
e1
Designation: A 955/A 955M – 04a
Standard Specification for
Deformed and Plain Stainless Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designationA955/A955M; 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
e NOTE—Editorial changes were made to Table 1 in August 2004.
1. Scope* ment between the manufacturer and purchaser. Requirements
providingfordeformationsandmarkingshallnotbeapplicable
1.1 This specification covers deformed and plain stainless
to plain bars.
steel bars for concrete reinforcement used in applications
1.5 Weldability of most stainless steel compositions is
requiring resistance to corrosion or controlled magnetic per-
generally good, however, pre-weld or post-weld procedures, or
meability. The standard sizes and dimensions of deformed bars
both, are necessary. Where material is to be welded, a welding
and their numerical designation shall be those listed inTable 1.
procedure suitable for the chemical composition and intended
The text of this specification references notes and footnotes
use or service shall be used. Retesting of physical properties
which provide explanatory material. These notes and footnotes
should be considered following welding procedures depending
(excluding those in tables and figures) shall not be considered
upon the steel composition and welding operation involved.
as requirements of the specification.
1.1.1 Supplementary requirement (S1) of an optional nature
NOTE 2—It is recommended that the user consult the manufacturer for
isprovided.Itshallapplyonlywhenspecifiedbythepurchaser.
information available from the Nickel Development Institute (NIDI)
(Toronto, Canada).
In order to obtain a controlled magnetic permeability product,
steel conforming to Supplementary Requirement S1 should be
1.6 This specification is applicable for orders in either
ordered.
inch-pound units (as Specification A 955) or in SI units (as
1.2 The chemical composition of the stainless steel alloy
Specification A 955M).
shall be selected for suitability to the application involved by
1.7 The values stated in either inch-pound or SI units are to
agreement between the manufacturer and the purchaser.This is
be regarded separately as standard.Within the text, the SI units
an important consideration in achieving the desired corrosion
are shown in brackets.The values stated in each system are not
resistance and/or controlled magnetic permeability.
exact equivalents; therefore, each system shall be used inde-
pendentlyoftheother.Combiningvaluesfromthetwosystems
NOTE 1—ThealloysshowninTable2havefoundthemostuseinNorth
may result in nonconformance with the standard.
America. These and other stainless steel alloys specified inA 276 or other
specifications are available for consideration in product selection. Consult
2. Referenced Documents
with the steel manufacturer for stainless steel alloy availability.
2
2.1 ASTM Standards:
1.3 Bars are generally of three minimum yield levels,
A 6/A6M Specification for General Requirements for
namely, 40 000 [300 MPa], 60 000 [420 MPa], and 75 000 psi
Rolled Structural Steel Bars, Plates, Shapes, and Sheet
[520 MPa], designated as Grade 40 [300], Grade 60 [420], and
Piling
Grade 75 [520], respectively.
A 262 Practices for Detecting Susceptibility to Intergranu-
1.4 Plainroundsinsizesuptoandincluding2in.[50.8mm]
lar Attack in Austenitic Stainless Steels
in diameter, when specified for dowels, spirals, structural ties,
A 276 Specification for Stainless Steel Bars and Shapes
and supports, shall be furnished under this specification in
A 342 Test Methods for Permeability of Feebly Magnetic
Grade 40 [300], Grade 60 [420], and Grade 75 [520], respec-
Materials
tively. Bending properties, when required, shall be by agree-
A 370 Test Methods and Definitions for MechanicalTesting
of Steel Products
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.05 on Steel Reinforcement.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved May 1, 2004. Published May 2004. Originally
Standards volume information, refer to the standard’s Document Summary page on
approved in 1996. Last previous edition approved in 2004 as A 955M - 04.
the ASTM website.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.