Name: ASTM A775/A775M-04 - Standard Specification for Epoxy-Coated Steel Reinforcing Bars
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Abstract

Standard Specification for Epoxy-Coated Steel Reinforcing Bars

SCOPE
1.1 This specification covers deformed and plain steel reinforcing bars with protective epoxy coating applied by the electrostatic spray method. Note 1The coating applicator is identified throughout this specification as the manufacturer.
1.2 Other organic coatings may be used provided they meet the requirements of this specification.
1.3 Requirements for coatings are contained in .
1.4 Guidelines for construction practices at the job-site are presented in .
1.5 This specification is applicable for orders in either SI units (as Specification A 775M) or inch-pound units [as Specification A 775].
1.6 The values stated in either SI or inch-pound units are to be regarded as standard. Within the text, the inch-pound 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, except as specifically noted in . Combining values from the two systems may result in nonconformance with this specification.
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status

Historical

Publication Date

31-Mar-2004

ICS

77.140.15 - Steels for reinforcement of concrete

Technical Committee

A01 - Steel, Stainless Steel and Related Alloys

Drafting Committee

A01.05 - Steel Reinforcement

Current Stage

Ref Project

Relations

Replaces

ASTM A775/A775M-01 - Standard Specification for Epoxy-Coated Steel Reinforcing Bars

Effective Date

01-Apr-2004

Replaced By

ASTM A775/A775M-04a - Standard Specification for Epoxy-Coated Steel Reinforcing Bars

Effective Date

01-Jul-2004

Referred By

ASTM A934/A934M-22 - Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars

Effective Date

01-Apr-2004

Referred By

ASTM A884/A884M-19e1 - Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Reinforcement

Effective Date

01-Apr-2004

Referred By

ASTM C1776/C1776M-17(2022) - Standard Specification for Wet-Cast Precast Modular Retaining Wall Units

Effective Date

01-Apr-2004

Referred By

ASTM E2950-14(2020) - Standard Specification for Metal Canopy Systems

Effective Date

01-Apr-2004

Referred By

ASTM D3963/D3963M-21 - Standard Specification for Fabrication and Jobsite Handling of Epoxy-Coated Steel Reinforcing Bars

Effective Date

01-Apr-2004

Referred By

ASTM A1078/A1078M-22 - Standard Specification for Epoxy-Coated Steel Dowels for Concrete Pavement

Effective Date

01-Apr-2004

Referred By

ASTM A1124/A1124M-23 - Standard Specification for Textured Epoxy-Coated Steel Reinforcing Bars

Effective Date

01-Apr-2004

Referred By

ASTM A899-91(2021) - Standard Specification for Steel Wire, Epoxy-Coated

Effective Date

01-Apr-2004

Referred By

ASTM A1055/A1055M-22 - Standard Specification for Zinc and Epoxy Dual-Coated Steel Reinforcing Bars

Effective Date

01-Apr-2004

Buy Standard

ASTM A775/A775M-04 - Standard Specification for Epoxy-Coated Steel Reinforcing Bars

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ASTM A775/A775M-04 - Standard Specification for Epoxy-Coated Steel Reinforcing Bars

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Standards Content (Sample)

ASTM A775/A775M-04 - Standard ...

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: A 775/A 775M – 04
Standard Speciﬁcation for
1
Epoxy-Coated Steel Reinforcing Bars
ThisstandardisissuedundertheﬁxeddesignationA775/A775M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
TABLE 1 Bend Test Requirements
1. Scope*
A 615M, A 706M A 615, A 706
1.1 This speciﬁcation covers deformed and plain steel
or A 996M or A 996M
reinforcing bars with protective epoxy coating applied by the
Bend
electrostatic spray method.
Mandrel Mandrel Angle Time to
Bar Bar
Diameter, Diameter, (After Completion
NOTE 1—The coating applicator is identiﬁed throughout this speciﬁca- No. No.
A A
mm in. Rebound, max, s
tion as the manufacturer.
degrees)
1.2 Other organic coatings may be used provided they meet 10 75 3 3 180 15
13 100 4 4 180 15
the requirements of this speciﬁcation.
16 125 5 5 180 15
1.3 Requirements for coatings are contained in Annex A1.
19 150 6 6 180 15
1.4 Guidelines for construction practices at the job-site are
22 175 7 7 180 45
25 200 8 8 180 45
presented in Appendix X1.
29 230 9 9 180 45
1.5 This speciﬁcation is applicable for orders in either SI
32 250 10 10 180 45
units (as SpeciﬁcationA775M) or inch-pound units [as Speci- 36 280 11 11 180 45
43 430 14 17 90 45
ﬁcation A775].
57 580 18 23 90 45
1.6 The values stated in either SI or inch-pound units are to
A
Mandrel diameters speciﬁed for similar size (shown on the same line) metric
be regarded as standard. Within the text, the inch-pound units
and inch-pound bars may be interchanged.
areshowninbrackets.Thevaluesstatedineachsystemarenot
exact equivalents; therefore, each system must be used inde-
pendently of the other, except as speciﬁcally noted in Table 1. A944 Test Method for Comparing Bond Strength of Steel
Combiningvaluesfromthetwosystemsmayresultinnoncon-
ReinforcingBarstoConcreteUsingBeam-EndSpecimens
formance with this speciﬁcation. A996/A 996M Speciﬁcation for Rail-Steel and Axle-Steel
1.7 This standard does not purport to address all of the
Deformed Bars for Concrete Reinforcement
safety concerns, if any, associated with its use. It is the
B117 Practice for Operating Salt Spray (Fog) Apparatus
responsibility of the user of this standard to establish appro-
D4060 Test Method for Abrasion Resistance of Organic
priate safety and health practices and determine the applica-
Coatings by Taber Abrasor
bility of regulatory limitations prior to use.
G8 Test Methods for Cathodic Disbonding of Pipeline
Coatings
2. Referenced Documents
G14 Test Method for Impact Resistance of Pipeline Coat-
2
2.1 ASTM Standards:
ings (Falling Weight Test)
A 615/A 615M Speciﬁcation for Deformed and Plain
G20 Test Method for Chemical Resistance of Pipeline
Billet-Steel Bars for Concrete Reinforcement
Coatings
A706/A706M Speciﬁcation for Low-Alloy Steel De-
G62 Test Methods for Holiday Detection in Pipeline Coat-
formed and Plain Bars for Concrete Reinforcement
ings
2.2 NACE International Standard:
RP-287-87 Field Measurement of Surface Proﬁle of Abra-
3
sive Blast-Cleaned Steel Surface Using a Replica Tape
1
This speciﬁcation is under the jurisdiction ofASTM CommitteeA01 on Steel,
2.3 Society for Protective Coatings Speciﬁcations:
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
4
A01.05 on Steel Reinforcement.
SSPC-SP10 Near-White Blast Cleaning
Current edition approved April 1, 2004. Published May 2004. Originally
approved in 1981. Last previous edition approved in 2001 as A775/A775M–01.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from NACE International, 1440 South Creek, Houston, TX 77084.
4
Standards volume information, refer to the standard’s Document Summary page on Available from Society for Protective Coatings, 40 24th Street, Pittsburgh, PA
the ASTM website. 15222.
*A Summary 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

---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
A 775/A 775M – 04
NOTE 2—Itisrecommendedthatthecoatingapplicationproceduresand
SSPC-VIS1 Pictorial Surface Preparation Standards for
4
processes be audited by an independent certiﬁcation program for epoxy
Painting Steel Surfaces
coating applicator
...

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ASTM A1035/A1035M-23a(Specification)

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

ABSTRACT
This specification covers low-carbon, chromium, steel bars, deformed and plane for concrete reinforcement in cut lengths and coils. The bars shall be rolled from properly identified heats of mold cast or strand cast steel using the basic oxygen, electric-furnace, or open-hearth process. Heat analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, chromium, manganese, nitrogen, phosphorus, sulfur, and silicon. Steel specimens shall also undergo deformations test, tensile test, and bend test. Steel specimens shall conform to required values of tensile strength, yield strength, stress, and elongation. Final products shall be marked by a tag.
SCOPE
1.1 This specification covers deformed and plain low-carbon, chromium, steel bars, in cut lengths and coils for concrete reinforcement. These bars are furnished in three alloy types depending on the chromium range content. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1.2
1.2 Bars are of two minimum yield strength levels as defined in 9.2: namely, 100 000 psi [690 MPa], and 120 000 psi [830 MPa] designated as Grade 100 [690] and Grade 120 [830], respectively.
1.3 Bars are furnished to three different chemical compositions, designated as Alloy Type CL, CM, and CS. Chemical compositions are shown in Table 2.
1.4 Plain bars, in sizes up to and including 2.25 in. [57.2 mm] 21/2 in. [63.5 mm] in diameter in coils and cut lengths, when ordered shall be furnished under this specification in Grade 100 [690] and Grade 120 [830]. For ductility properties (elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements providing for deformations and marking shall not be applicable.
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.
Note 2: Designers need to be aware that design codes and specifications may not recognize the use of the No. 20 [64] bar, the largest bar size included in this specification. Structural members reinforced with No. 20 [64] bars may require approval of the building official or other appropriate authority and require special detailing to ensure adequate performance at service and factored loads.
1.5 Requirements for alternate bar sizes are presented in Annex A1. The requirements in Annex A1 only apply when specified by the purchaser (see 4.2.4).
1.6 A supplementary requirement (S1) is provided for use where bend testing of bar designation Nos. 14 and 18 [43, 57], and bar designation Nos. 40, 50, and 60 in Annex A1, is required by the purchaser. The supplementary requirement applies only when specified in the purchase order.
1.7 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.
1.8 This specification is applicable for orders in either inch-pound units (as Specification A1035) or in SI units (as Specification A1035M).
1.9 The values stated in either inch-pound units 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification.
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ASTM A881/A881M-23(Specification)

Standard Specification for Steel Wire, Indented, Low-Relaxation for Prestressed Concrete

ABSTRACT
This specification covers uncoated, deformed, stress-relieved, and low-relaxation wire for use as prestressed tendons in concrete railroad ties. Deformed wires with nominal diameters shall be supplied in coils and shall conform to specified values of breaking strength requirements. The relaxation losses of normal stress-relieved and low-relaxation stress-relieved wires should not exceed the specified limits. The two acceptable types of deformed wire shall have specific dimensions of deformations, where the depth of indent shall be the average depth of six or more random indents measured at maximum depth. The material shall be tested on and shall conform to specified values of the following mechanical properties: breaking strength, load at 1% extension, elongation, bending, and relaxation.
SCOPE
1.1 This specification covers indented, low-relaxation steel wire for use in prestressed concrete.
1.2 The text of this specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes do not contain any mandatory information.
1.3 This specification is applicable for orders in either inch-pound units (as Specification A881) or in SI units (as Specification A881M).
1.4 The values stated in either inch-pound units 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification.
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ASTM A706/A706M-22a(Specification)

Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement

ABSTRACT
This specification covers deformed and plain low-alloy steel bars in cut lengths or coils for concrete reinforcement intended for applications. Restrictive mechanical properties and chemical composition are required for compatibility with controlled tensile property applications or to enhance weldability. The steel shall be electric-furnace, basic-oxygen, or open-hearth processed. Tension test, bend test, and one set of dimensional property tests including bar weight and spacing, height, and gap of deformations shall be made of each bar size rolled from a heat. All tests and inspection shall be made at the place of manufacture prior to shipment, unless otherwise specified, and shall be conducted so as not to interfere unnecessarily with the operation of the works. A retest shall be provided when the specimen fails to meet the strength and elongation property requirements of the specification.
SCOPE
1.1 General—This specification covers deformed and plain low-alloy steel bars in cut lengths and coils for concrete reinforcement intended for applications where restrictive mechanical properties and chemical composition are required for compatibility with controlled tensile property applications or to enhance weldability. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1.
1.2 Grade—Bars are of three minimum yield strength levels: namely, 60 000 psi [420 MPa], 80 000 psi [550 MPa], and 100 000 psi [690 MPa] designated as Grade 60 [420], Grade 80 [550], and Grade 100 [690], respectively.
1.3 Plain bars, in sizes up to and including 21/2 in. [63.5 mm] in diameter in coils or cut lengths, when ordered, shall be furnished under this specification. For ductility properties (elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements providing for deformations and marking shall not be applicable.
1.4 Controlled Tensile Properties—This specification limits tensile properties (Table 2) to provide the desired yield/tensile properties for controlled tensile property applications.
1.5 Welding—This specification limits chemical composition (6.2) and carbon equivalent (6.4) to enhance the weldability of the material. When this steel is to be welded, a welding procedure suitable for the chemical composition and intended use or service should be used. The use of the latest edition of AWS D1.4/D1.4M is recommended. The AWS D1.4/D1.4M Welding Code describes the proper selection of the filler metals, preheat/interpass temperatures, as well as, performance and procedure qualification requirements.
Note 1: As a result of the 117 000 psi minimum tensile strength for Grade 100 [690], users of this specification should be aware that ACI 318 Type 1 mechanical splice requirements of 125 % of specified yield strength requirements in tension and compression, found in many acceptance criteria, may result in an invalid mechanical splice qualification or verification test when the tensile strength of the bar is between 117 000 psi and 125 000 psi.
1.6 Annex A2 describes the methods for determination of uniform elongation (Elu). Annex A2 is mandatory when Supplementary Requirement S1 is specified by the purchaser (see 4.2.6).
1.7 Requirements for alternate bar sizes are presented in Annex A1. The requirements in Annex A1 only apply when specified by the purchaser (see 4.2.5).
1.8 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes, excluding those in tables, shall not be considered as requirements of this specification.
1.9 This specification is applicable for orders in either inch-pound units (Specification A706) or in SI units [Specification A706M].
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1.3 An alternative to a continuous coating process of wire before fabrication is a hot-dip process, where the welded wire reinforcement is immersed in a bath of molten zinc.
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1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 non-conformance with the standard.
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Standard Specification for Epoxy-Coated Steel Reinforcing Bars

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This specification covers deformed and plain steel reinforcing bars with protective epoxy coating applied by the electrostatic spray method. The surface of the steel reinforcing bars to be coated shall be cleaned by abrasive blast cleaning to near-white metal. The number and frequency of tests for coating thickness, continuity, flexibility and adhesion are specified. If the specimen for coating thickness or flexibility fails to meet the specified requirements, two retests on random samples shall be conducted for each failed test.
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1.1 This specification covers deformed and plain steel reinforcing bars with protective epoxy coating applied by the electrostatic spray method.
Note 1: The coating applicator is identified throughout this specification as the manufacturer.
1.2 Other organic coatings may be used provided they meet the requirements of this specification.
1.3 Requirements for coatings are contained in Annex A1.
1.4 Requirements for patching material are contained in Annex A2.
1.5 Guidelines for construction practices at the job-site are presented in Appendix X1.
1.6 This specification is applicable for orders in either inch-pound units (as Specification A775) or SI units [as Specification A775M].
1.7 The values stated in either inch-pound units or SI units are to be regarded separately as standard. 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 non-conformance with the standard.
1.8 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.
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Standard Specification for Steel Fibers for Fiber-Reinforced Concrete

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This specification covers steel fibers intended for use in fiber-reinforced concrete. The fibers shall be straight or deformed and of Types I (cold-drawn wire), II (cut sheet), III (melt-extracted), IV (mill cut), and V ( modified cold-drawn wire). Tensile and bend tests of randomly-selected finished fibers shall be performed. Measurement of dimensions shall be performed and values should conform to permissible variations of length, nominal length, diameter, equivalent diameter, aspect ratio, and nominal aspect ratio. Guidelines for inspection, rejection, rehearing, certification, and packaging are also given.
SCOPE
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1.2 This specification provides for measurement of dimensions, tolerances from specified dimensions, and required minimum physical properties, and prescribes testing procedures to establish conformance to these requirements.
1.3 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of a conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail. The purchase order requirements shall not take precedence if they, in any way, violate the requirements of the product specification or this specification; for example, by the waiving of a test requirement or by making a test requirement less stringent.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 non-conformance with the standard.
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 A934/A934M-22(Specification)

Standard Specification for Epoxy-Coated Prefabricated Steel Reinforcing Bars

ABSTRACT
This specification covers deformed and plain steel reinforcing bars. Steel samples shall be blast cleaned and shall be coated with a protective fusion-bonded epoxy coating by electrostatic spray or other suitable method. The steel specimens shall undergo deformation test, holiday checks, bending tests, and cathodic disbondment test. The steels materials shall conform to the required values of coating thickness, continuity, flexibility, adhesion.
SCOPE
1.1 This specification covers deformed and plain steel reinforcing bars which prior to surface preparation are prefabricated and then coated with a protective fusion-bonded epoxy coating by electrostatic spray or other suitable method.
1.2 Prefabricated steel reinforcing bars coated with fusion-bonded epoxy powder coating in accordance with this specification are intended to be fabricated before being coated.
1.3 Organic coatings other than epoxy may be used provided they meet the requirements of this specification.
1.4 Requirements for epoxy coatings are contained in Annex A1.
1.5 Requirements for patching material are contained in Annex A2 in Specification A775/A775M.
1.6 Guidelines for application process and product test procedures of epoxy coatings for steel reinforcing bars are presented in Appendix X1.
1.7 Guidelines for construction practices at the job-site for coated steel reinforcing bars are presented in Appendix X2.
1.8 This specification is applicable for orders in either inch-pound units (as Specification A934) or SI [metric] units [as Specification A934M].
1.9 The values stated in either inch-pound units or SI units are to be regarded separately as standard. 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 non-conformance with the standard.
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ABSTRACT
This specification covers deformed and plain carbon-steel bars for concrete reinforcements in cut lengths and coils. Materials considered under this specification are available in Grades 40 [280], 60 [420] and 75 [520]. Steel samples shall be rolled from properly identified heats of mold cast or strand cast steel using electric-furnace, basic-oxygen, or open-hearth. Heat analysis shall be performed wherein steel materials shall conform to required compositions of carbon, manganese, phosphorus and sulfur. Steel specimens shall also undergo tensile tests and shall conform to required values of tensile strength, yield strength, and elongation. Steel samples shall also undergo deformation test, tension test and bend tests. Final products shall be marked by a tag.
SCOPE
1.1 This specification covers deformed and plain carbon-steel bars in cut lengths and coils for concrete reinforcement. Annex A2 of this specification covers deformed bars for use for other applications. Steel bars containing alloy additions, such as with the Association for Iron and Steel Technology and the Society of Automotive Engineers series of alloy steels, are permitted if the resulting product meets all the other requirements of this specification. The standard sizes and dimensions of deformed bars and their number designations are given in Table 1.
1.2 Unless specified for use for other applications in Annex A2, bars are of four minimum yield strength levels: namely, 40 000 psi [280 MPa], 60 000 psi [420 MPa], 80 000 psi [550 MPa], and 100 000 psi [690 MPa], designated as Grade 40 [280], Grade 60 [420], Grade 80 [550], and Grade 100 [690], respectively.
Note 1: Grade 100 [690] reinforcing bars were introduced in this specification in 2015. In contrast to the lower grades, which have ratios of specified tensile strength to specified yield strength that range from 1.25 to 1.50, Grade 100 [690] reinforcing bars have a ratio of specified tensile strength to specified yield strength of 1.15. Users of this specification should be aware that there will, therefore, be a lower margin of safety and reduced warning of failure following yielding when Grade 100 [690] bars are used in structural members where strength is governed by the tensile strength of the reinforcement, primarily in beams and slabs. As a result of the lower specified tensile strength to specified yield strength ratio of 1.15 for Grade 100 [690], users of this specification should be aware that ACI 318 Type 1 mechanical and welded splice requirements found in many acceptance criteria of 125 % of specified yield strength requirements in tension and compression are not applicable to Grade 100 [690]. Mechanical and welded splices should meet a minimum specified tensile strength of 115 000 psi [790 MPa] for Grade 100 [690].
Note 2: Users of this specification need to be aware that consensus design codes and specifications may not recognize the use of the No. 20 [64] bar, the largest bar included in this specification. Structural members reinforced with No. 20 [64] bars may require approval of the building official or other appropriate authority and require special detailing to ensure adequate performance at service and factored loads.
1.3 Plain bars, in sizes up to and including 21/2 in. [63.5 mm] in diameter in coils or cut lengths, when ordered shall be furnished under this specification in Grade 40 [280], Grade 60 [420], Grade 80 [550], and Grade 100 [690]. For ductility properties (elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements providing for deformations and marking shall not be applicable.
Note 3: 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. T...

Technical specification
8 pages
English language
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Technical specification
8 pages
English language
sale 15% off

30-Jun-2022
77.140.15
A01

ASTM

ASTM A421/A421M-21(Specification)

Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete

ABSTRACT
This specification covers two types of uncoated stress-relieved round high-carbon steel wire commonly used in prestressed linear concrete construction. These two types are the type BA used for applications in which cold-end deformation is used for anchoring purposes and type WA wire which is used for application in which the ends are anchored by wedges, no cold-end deformation of the wire is involved. Required tensile strength, yield strength, and elongation shall be evaluated using stress-relaxation test. Heat analysis shall be used to determine the percentage of specified elements especially sulfur and phosphorus to meet the required chemical composition.
SCOPE
1.1 This specification covers two types of stress-relieved round high-carbon steel wire used in prestressed concrete construction, as follows:
1.1.1 Type BA wire is used for applications in which cold-end deformation is used for anchoring purposes (Button Anchorage), and
1.1.2 Type WA wire is used for application in which the ends are anchored by wedges, and no cold-end deformation of the wire is involved (Wedge Anchorage).
1.2 A supplementary requirement (S1) is provided for use where low-relaxation wire and relaxation testing for that product is required by the purchaser. The supplementary requirement applies only when specified in the purchase order or contract.
1.3 This specification is applicable for orders in either inch-pounds units (as Specification A421) or in SI units (as Specification A421M).
1.4 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification.
1.5 The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables) shall not be considered as requirements of the specification.
1.6 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

30-Apr-2021
77.140.15
77.140.65
A01