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ASTM A955/A955M-01

(Specification)

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

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 . 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 have found the most use in North America. These and other stainless steel alloys specified in A276 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 A955) or in SI units (as Specification A955M).
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
09-Apr-2001
ICS
77.140.60 - Steel bars and rods
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.05 - Steel Reinforcement
Current Stage
Ref Project

Relations

Replaced By
ASTM A955/A955M-02 - Standard Specification for Deformed and Plain Stainless Steel Bars for Concrete Reinforcement
Effective Date
10-Nov-2002

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ASTM A955/A955M-01 - Standard Specification for Deformed and Plain Stainless Steel Bars for Concrete ReinforcementASTM A955/A955M-01 - Standard Specification for Deformed and Plain Stainless Steel Bars for Concrete Reinforcement
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ASTM A955/A955M-01 - Standard Specification for Deformed and Plain Stainless Steel Bars for Concrete Reinforcement
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 955/A 955M – 01
Standard Specification for
Deformed and Plain Stainless Steel Bars for Concrete
1
Reinforcement
This standard is issued under the fixed designation A 955/A 955M; 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 both, are necessary. Where material is to be welded, a welding
procedure suitable for the chemical composition and intended
1.1 This specification covers deformed and plain stainless
use or service shall be used. Retesting of physical properties
steel bars for concrete reinforcement used in applications
should be considered following welding procedures depending
requiring resistance to corrosion or controlled magnetic per-
upon the steel composition and welding operation involved.
meability. The standard sizes and dimensions of deformed bars
and their numerical designation shall be those listed in Table 1.
NOTE 2—It is recommended that the user consult the manufacturer for
The text of this specification references notes and footnotes information available from the Nickel Development Institute (NIDI)
(Toronto, Canada).
which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered
1.6 This specification is applicable for orders in either
as requirements of the specification.
inch-pound units (as Specification A 955) or in SI units (as
1.1.1 Supplementary requirement (S1) of an optional nature
Specification A 955M).
is provided. It shall apply only when specified by the purchaser.
1.7 The values stated in either inch-pound or SI units are to
In order to obtain a controlled magnetic permeability product,
be regarded separately as standard. Within the text, the SI units
steel conforming to Supplementary Requirement S1 should be
are shown in brackets. The values stated in each system are not
ordered.
exact equivalents; therefore, each system shall be used inde-
1.2 The chemical composition of the stainless steel alloy
pendently of the other. Combining values from the two systems
shall be selected for suitability to the application involved by
may result in nonconformance with the standard.
agreement between the manufacturer and the purchaser. This is
2. Referenced Documents
an important consideration in achieving the desired corrosion
resistance and/or controlled magnetic permeability.
2.1 ASTM Standards:
A 6/A6M Specification for General Requirements for
NOTE 1—The alloys shown in Table 2 have found the most use in North
Rolled Structural Steel Bars, Plates, Shapes, and Sheet
America. These and other stainless steel alloys specified in A 276 or other
2
specifications are available for consideration in product selection. Consult Piling
with the steel manufacturer for stainless steel alloy availability.
A 262 Practices for Detecting Susceptibility to Intergranu-
3
lar Attack in Austenitic Stainless Steels
1.3 Bars are generally of three minimum yield levels,
3
A 276 Specification for Stainless Steel Bars and Shapes
namely, 40 000 [300 MPa], 60 000 [420 MPa], and 75 000 psi
A 342 Test Methods for Permeability of Feebly Magnetic
[520 MPa], designated as Grade 40 [300], Grade 60 [420], and
4
Materials
Grade 75 [520], respectively.
A 370 Test Methods and Definitions for Mechanical Testing
1.4 Plain rounds in sizes up to and including 2 in. [50.8 mm]
3
of Steel Products
in diameter, when specified for dowels, spirals, structural ties,
A 484/A484M Specification for General Requirements for
and supports, shall be furnished under this specification in
3
Stainless Steel Bars, Billets, and Forgings
Grade 40 [300], Grade 60 [420], and Grade 75 [520], respec-
A 510/A510M Specification for General Requirements for
tively. Bending properties, when required, shall be by agree-
3
Wire Rods and Coarse Round Wire, Carbon Steel
ment between the manufacturer and purchaser. Requirements
A 700 Practices for Packaging, Marking, and Loading
providing for deformations and marking shall not be applicable
5
Methods for Steel Products for Domestic Shipment
to plain bars.
E 29 Practice for Using Significant Digits in Test Data to
1.5 Weldability of most stainless steel compositions is
6
Determine Conformance with Specifications
generally good, however, pre-weld or post-weld procedures, or
1 2
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Annual Book of ASTM Standards, Vol 01.04.
3
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 01.03.
4
A01.05 on Steel Reinforcement. Annual Book of ASTM Standards, Vol 03.04.
5
Current edition approved April
...

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FIG. 1 Locations in Typical Cross Sections of Steel Bars at Which Desired Properties Are Obtained  
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1.2.5 Flats over 6 in. to 8 in., inclusive in width, 0.230 in. and over [over 6 mm in thickness and over 50 mm through 200 mm in width] in thickness and under 40.84 lb/ft [60.78 kg/m] or 12 in.2 [77.4 cm2] in cross-sectional area.  
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This specification covers hot-finished or cold-finished bars except bars for reforging. It includes rounds, squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels. The bars shall be furnished in one of the following conditions: Condition A in which the bars are annealed, Condition H in which the bars are hardened and tempered at a relative temperature, Condition T in which the bars are hardened and tempered at a relatively high temperature, Condition S in which the bars are strain hardened or relatively light cold worked, and Condition B in which the bars are relatively severe cold worked. The material shall be subjected to a mechanical test to determine its tensile strength, yield strength, elongation, and Brinell hardness.
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This guide covers a group of requirements for carbon and alloy steel bars under each of the following specifications: hot-rolled carbon steel bars, cold-finished carbon steel bars, hot-rolled alloy steel bars, and cold-finished alloy steel bars. Heat and product analysis shall be performed on several grades of carbon steel bars, wherein the material shall conform to the required chemical composition for carbon, manganese, phosphorus, and sulfur. Several grades of alloy steel bars shall also undergo heat and product analysis and shall meet the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, and molybdenum. When compositions other than those indicated in the specified chemical components are required, the composition limits shall be prepared using the specified ranges and limits for carbon steel and alloy steel. The material shall undergo grain size test and shall conform to the specified grain size requirement. Mechanical tests shall also be performed on the steel test specimens.
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1.1 This specification2 covers a group of common requirements which, unless otherwise specified in the purchase order or in an individual specification, shall apply to carbon and alloy steel bars under each of the following ASTM specifications (or under any other ASTM specification which invokes this specification or portions thereof):    
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DesignationA  
Hot-Rolled Carbon Steel Bars:  
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A321    
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Steel Bars, Carbon, Hot-Wrought, Special Quality  
A576    
Steel Bars, Carbon, Merchant Quality, Mechanical Properties  
A663/A663M    
Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical Properties  
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Carbon and Alloy Steel Bars for Springs  
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A108    
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A739    
Cold-Finished Alloy Steel Bars:  
Steel Bars, Alloy, Hot-Rolled or Cold-Finished, Quenched and Tempered  
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A These designations refer to the latest issue of the respective specifications, which appear either in the Annual Book of ASTM Standards, Vol 01.05, or as reprints obtainable from ASTM.  
1.2 In case of any conflict in requirements, the requirements of the purchase order, the individual material specification, and this general specification shall prevail in the sequence named.  
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall used independently of the other, and values from the two systems shall not be combined.  
1.4 For purposes of determining conformance to this specification and the various material specifications referenced in 1.1, dimensional values shall be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E29.
Note 1: Specification A29/A29M previously listed dimensional tolerances for cold-finished bars; these are now found in Spe...

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1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Standard Specification for Fusion-Bonded Epoxy-Coated Structural Steel H-Piles and Sheet Piling

ABSTRACT
This specification covers the qualification requirements for structural steel H-piles and sheet piling with protective fusion-bonded epoxy coating applied by electrostatic spraying, flocking, or fluidized bed processing. Surface preparation techniques shall be performed by abrasive blast cleaning, grinding and chemical washing prior to coating application. The powder coating shall be heat treated and cured before visible oxidation occurs. Coating materials shall undergo thickness measurements and bend testing, and shall conform to the requirements for film thickness, flexibility and continuity, impact resistance, chemical composition, and corrosion resistance. The coated H-piles or sheet piling shall be stored off of the ground on supports. While handling equipment, bundling bands for packaging and tie-down bands for shipping shall have padded contact areas so as to avoid damage and excessive deflection.
SCOPE
1.1 This specification covers structural steel H-piles and sheet piling with protective fusion-bonded epoxy coating applied by the electrostatic spray, flocking, or fluidized bed process.  
Note 1: The coating applicator is identified throughout this specification as the manufacturer.  
1.2 Requirements for coatings are contained in Annex A1.  
1.3 This specification is applicable for orders in either inch-pound units (as Specification A950) or SI units (as Specification A950M). 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.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM A582/A582M-22(Specification)
Standard Specification for Free-Machining Stainless Steel Bars

ABSTRACT
This specification covers hot-finished or cold-finished bars, except bars for forging, suitable for machining processes. It includes rounds, squares, and hexagons in the more commonly used types of stainless free-machining steels designed especially for optimum machinability and for general corrosion and high-temperature service. Bars may be furnished either hot finished or cold finished in one of the conditions specified. Materials shall adhere to specified chemical composition requirements. At least one hardness testing shall be made midway between surface and center on each lot to determine that the material conforms to hardness requirements. Also, test methods and definition for hardness testing are presented.
SCOPE
1.1 This specification covers hot-finished or cold-finished bars, except bars for forging (Note 1), suitable for machining processes. It includes rounds, squares, and hexagons in the more commonly used types of stainless free-machining steels designed especially for optimum machinability and for general corrosion and high-temperature service. Stainless steel bars other than the free-machining types are covered in a separate specification (Note 2).  
1.2 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standard: within the text and tables, the SI units are shown in [brackets]. The values stated in each system may not be exact equivalents: therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
Note 1: For bars for reforging, see Specification A314.  
Note 2: For non-free machining stainless bars, see Specification A276.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Technical specification
    4 pages
    English language
    sale 15% off
  • Technical specification
    4 pages
    English language
    sale 15% off