ASTM A899-91(2021)
(Specification)Standard Specification for Steel Wire, Epoxy-Coated
Standard Specification for Steel Wire, Epoxy-Coated
ABSTRACT
This specification covers epoxy-coated steel wires, in coils, for general use. The protective epoxy coatings covered here are available in three classes, namely: Class A, which are intended for use in moderate corrosion protection; Class B, which are intended for more severe protection; and Class C, which are intended for severe corrosion and abrasion protection. Prior to cleaning and coating, the steel wires shall be free of surface contaminants such as oil, grease, or paint. Wire surfaces shall be cleaned by abrasive cleaning or chemical cleaning to ensure proper adherence of the epoxy. Coatings shall then be applied as soon as possible after cleaning, before possible oxidation, and shall be properly cured. Wrap, bend and tensile tests shall be performed in order to evaluate coating properties, including thickness, continuity, adherence, size tolerance, and tensile strength.
SCOPE
1.1 This specification covers steel wire in the size range of 0.120 to 0.500 in. (3.05 to 12.7 mm) with three classes of protective epoxy coating, in coils, for general use. Class A coating is intended for use for moderate corrosion protection, Class B coating for more severe protection, and Class C for severe corrosion and abrasion protection.
Note 1: The coating applicator is identified throughout this specification as the manufacturer.
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only.
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.
General Information
- Status
- Published
- Publication Date
- 28-Feb-2021
- Technical Committee
- A01 - Steel, Stainless Steel and Related Alloys
- Drafting Committee
- A01.03 - Steel Rod and Wire
Relations
- Effective Date
- 01-Sep-2019
- Effective Date
- 15-Mar-2017
- Effective Date
- 01-Mar-2014
- Effective Date
- 01-Jun-2013
- Effective Date
- 01-Apr-2013
- Effective Date
- 15-Dec-2011
- Effective Date
- 01-Apr-2010
- Effective Date
- 01-Nov-2007
- Effective Date
- 01-Sep-2007
- Effective Date
- 01-Jul-2007
- Effective Date
- 01-Jun-2007
- Effective Date
- 01-May-2006
- Effective Date
- 01-Jul-2004
- Effective Date
- 01-Apr-2004
- Effective Date
- 01-Mar-2004
Overview
ASTM A899-91(2021) is the international standard specification for epoxy-coated steel wire in coils, designed for general use where corrosion and abrasion resistance are required. Published by ASTM International, this standard covers steel wire in the size range of 0.120 to 0.500 inches (3.05 to 12.7 mm) and specifies three classes of protective epoxy coatings:
- Class A: Moderate corrosion protection
- Class B: Enhanced protection for more severe environments
- Class C: Highest level of protection against severe corrosion and abrasion
This specification details requirements for the cleaning, coating, testing, and handling of epoxy-coated steel wire, ensuring product consistency and performance for a wide range of applications.
Key Topics
- Material Requirements: The standard mandates that steel wire must be free of surface contaminants such as oil, grease, or paint before coating, and should comply with relevant general wire specifications.
- Surface Preparation: Prior to coating, wire surfaces must be cleaned using abrasive or chemical methods to ensure optimal adhesion of the epoxy.
- Coating Application: Epoxy coatings must be applied promptly after cleaning and cured per manufacturer recommendations. Classes differ based on minimum dry film thickness:
- Class A: 5 mils (0.13 mm)
- Class B: 10 mils (0.25 mm)
- Class C: 20 mils (0.51 mm)
- Testing and Quality Assurance: The specification requires rigorous mechanical and continuity tests, including bend, wrap, and tensile tests, to verify coating adherence, integrity, thickness, and wire strength.
- Handling and Packaging: Coated wire must be handled with care, using padded contact points and appropriate banding to avoid coating damage. Identification must be maintained throughout processing and shipment.
Applications
Epoxy-coated steel wire specified by ASTM A899-91(2021) is widely used in applications where corrosion resistance and durability are critical. Some practical uses include:
- Construction: Reinforcing wire in concrete structures, meshes, barriers, and pre-stressing applications where exposure to moisture and chemicals is common.
- Industrial: Wiring, cages, and support structures in corrosive environments such as chemical plants or coastal facilities.
- Infrastructure: Fencing and safety barriers for transportation and public works, benefiting from increased longevity and reduced maintenance due to the protective epoxy coating.
- General Use: Any situations requiring steel wire with enhanced resistance to rust, abrasion, and environmental degradation.
Related Standards
For comprehensive compliance and enhanced performance, ASTM A899-91(2021) references and aligns with several related ASTM standards:
- ASTM A510/A510M: General requirements for rod and coarse round wire, carbon steel, and alloy steel.
- ASTM A853: Specification for general use of carbon steel wire.
- ASTM A775/A775M: Specification for epoxy-coated steel reinforcing bars, which outlines coating material properties.
- ASTM G12: Test method for nondestructive measurement of film thickness (withdrawn).
By referencing these standards, ASTM A899-91(2021) ensures compatibility and consistency in manufacturing and quality assessment for epoxy-coated steel wire products.
Keywords: epoxy-coated steel wire, ASTM A899, corrosion protection, steel wire specification, industrial wire standards, epoxy coating, wire coating standards.
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Frequently Asked Questions
ASTM A899-91(2021) is a technical specification published by ASTM International. Its full title is "Standard Specification for Steel Wire, Epoxy-Coated". This standard covers: ABSTRACT This specification covers epoxy-coated steel wires, in coils, for general use. The protective epoxy coatings covered here are available in three classes, namely: Class A, which are intended for use in moderate corrosion protection; Class B, which are intended for more severe protection; and Class C, which are intended for severe corrosion and abrasion protection. Prior to cleaning and coating, the steel wires shall be free of surface contaminants such as oil, grease, or paint. Wire surfaces shall be cleaned by abrasive cleaning or chemical cleaning to ensure proper adherence of the epoxy. Coatings shall then be applied as soon as possible after cleaning, before possible oxidation, and shall be properly cured. Wrap, bend and tensile tests shall be performed in order to evaluate coating properties, including thickness, continuity, adherence, size tolerance, and tensile strength. SCOPE 1.1 This specification covers steel wire in the size range of 0.120 to 0.500 in. (3.05 to 12.7 mm) with three classes of protective epoxy coating, in coils, for general use. Class A coating is intended for use for moderate corrosion protection, Class B coating for more severe protection, and Class C for severe corrosion and abrasion protection. Note 1: The coating applicator is identified throughout this specification as the manufacturer. 1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only. 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.
ABSTRACT This specification covers epoxy-coated steel wires, in coils, for general use. The protective epoxy coatings covered here are available in three classes, namely: Class A, which are intended for use in moderate corrosion protection; Class B, which are intended for more severe protection; and Class C, which are intended for severe corrosion and abrasion protection. Prior to cleaning and coating, the steel wires shall be free of surface contaminants such as oil, grease, or paint. Wire surfaces shall be cleaned by abrasive cleaning or chemical cleaning to ensure proper adherence of the epoxy. Coatings shall then be applied as soon as possible after cleaning, before possible oxidation, and shall be properly cured. Wrap, bend and tensile tests shall be performed in order to evaluate coating properties, including thickness, continuity, adherence, size tolerance, and tensile strength. SCOPE 1.1 This specification covers steel wire in the size range of 0.120 to 0.500 in. (3.05 to 12.7 mm) with three classes of protective epoxy coating, in coils, for general use. Class A coating is intended for use for moderate corrosion protection, Class B coating for more severe protection, and Class C for severe corrosion and abrasion protection. Note 1: The coating applicator is identified throughout this specification as the manufacturer. 1.2 The values stated in inch-pound units are to be regarded as the standard. The SI units given in parentheses are for information only. 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.
ASTM A899-91(2021) is classified under the following ICS (International Classification for Standards) categories: 77.140.65 - Steel wire, wire ropes and link chains. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM A899-91(2021) has the following relationships with other standards: It is inter standard links to ASTM A853-19, ASTM A853-04(2017), ASTM A775/A775M-07b(2014), ASTM G12-07(2013), ASTM A510/A510M-13, ASTM A510/A510M-11, ASTM A853-04(2010), ASTM A775/A775M-07b, ASTM A775/A775M-07a, ASTM G12-07, ASTM A775/A775M-07, ASTM A775/A775M-06, ASTM A775/A775M-04a, ASTM A775/A775M-04, ASTM A853-04. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM A899-91(2021) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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.
Designation: A899 −91 (Reapproved 2021)
Standard Specification for
Steel Wire, Epoxy-Coated
This standard is issued under the fixed designation A899; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Ordering Information
3.1 The purchaser shall specify the following:
1.1 This specification covers steel wire in the size range of
3.1.1 Wire size (the nominal diameter of the coated wire),
0.120 to 0.500 in. (3.05 to 12.7 mm) with three classes of
3.1.2 Quantity,
protective epoxy coating, in coils, for general use. Class A
3.1.3 Class of coating, and
coating is intended for use for moderate corrosion protection,
3.1.4 Method of packaging, such as, coils, coils on steel
Class B coating for more severe protection, and Class C for
reels, etc.
severe corrosion and abrasion protection.
3.2 The purchaser may specify the following if desired:
NOTE 1—The coating applicator is identified throughout this specifica-
3.2.1 Requirements for certification (see 14.1),
tion as the manufacturer.
3.2.2 Requirements for patching material (see 4.3),
1.2 The values stated in inch-pound units are to be regarded
3.2.3 Specific requirements for test frequency (see 8.1), and
as the standard. The SI units given in parentheses are for
3.2.4 Requirements for outside inspection of manufacturing
information only.
plant.
1.3 This international standard was developed in accor-
NOTE 2—A typical ordering description for wire is as follows: 40 000
lb of epoxy coated wire, ASTM A853, 0.148 in. diameter, Grade 1018
dance with internationally recognized principles on standard-
with a Class A epoxy coating in 1000 lb coils on steel reels to ASTM
ization established in the Decision on Principles for the
A899.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 4. Materials and Manufacture
Barriers to Trade (TBT) Committee.
4.1 Steel wire to be coated shall meet the requirements of
the purchaser or the requirements of an applicable general wire
2. Referenced Documents
specification such as Specification A510/A510M and Specifi-
cation A853, and shall be free of surface contaminants such as
2.1 ASTM Standards:
oil, grease, or paint when received at the manufacturer’s plant
A510/A510M Specification for General Requirements for
and prior to cleaning and coating.
Wire Rods and Coarse Round Wire, Carbon Steel, and
4.2 The coating material shall meet the requirements listed
Alloy Steel
A775/A775M Specification for Epoxy-Coated Steel Rein- in Annex A1 of Specification A775/A775M.
4.2.1 If specified in the order, a written certification shall be
forcing Bars
A853 Specification for Steel Wire, Carbon, for General Use furnished to the purchaser that properly identifies the number
of each batch of coating material used in the order, material,
G12 Test Method for Nondestructive Measurement of Film
Thickness of Pipeline Coatings on Steel (Withdrawn quantityrepresented,dateofmanufacture,nameandaddressof
2013) manufacturer, and a statement that the supplied coating mate-
rial meets the requirements of Annex A1 of Specification
A775/A775M.
1 4.3 If specified in the order, patching material, compatible
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
with the coating material and meeting the requirements of
A01.03 on Steel Rod and Wire.
Annex A1 of Specification A775/A775M shall be supplied to
Current edition approved March 1, 2021. Published May 2021. Originally
the purchaser.
approved in 1990. Last previous edition approved in 2014 as A899 – 91 (2014).
DOI: 10.1520/A0899-91R21.
5. Surface Preparation
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 The surface of the steel wire to be coated shall be
Standards volume information, refer to the standard’s Document Summary page on
cleanedbyabrasiveblastcleaningorchemicalcleaningpriorto
the ASTM website.
coating to ensure proper adherence of the epoxy to the steel
The last approved version of this historical standard is referenced on
www.astm.org. surface.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A899 − 91 (2021)
5.2 Prior to abrasive blast cleaning, the surface of the wire 7.5.1 The coated wire shall have a size tolerance of plus or
to be coated may be cleaned in an aqueous solution to remove minus 0.004 in. (0.10 mm) maximum from the ordered
residual wire drawing lubricants. nominal diameter.
7.5.2 The uncoated wire intended for epoxy coating shall be
produced to a size tolerance that will allow the epoxy coated
6. Application of Coating
wire to meet the tolerances of 7.5.1. However in no case will
6.1 The coating shall be applied to the cleaned surface as
the size tolerance of the uncoated wire be required to be more
soon as possible after cleaning, and before oxidation of the
restrictive than one-half the values of permissible variation in
surface discernible to the unaided eye occurs.
diameter of Table 3 of Specification A510/A510M.
6.2 The coating shall be applied and properly cured in
7.6 Place of Testing—Tests for coating of steel wire shall be
accordance with the recommendations of the manufacturer of
done at the manufacturer’s plant prior to shipment.
the coating material to satisfy the product requirements.
7.7 Time of Testing—All requirements for coated wire shall
be met at the manufacturer’s plant prior to shipment.
7. Requirements for Coated Wire
7.1 Thickness of Coating:
8. Number of Tests
7.1.1 ClassA—Thefilmthicknessofthecoatingaftercuring
8.1 The purchaser may specify the sampling and test sched-
shall be 5 mils minimum (0.13 mm).
ule for the number and frequen
...
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