ASTM B803-02

Standard Specification for High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced

ABSTRACT
This specification covers round, high-strength, zinc-aluminum-mischmetal (Zn-5Al-MM) alloy-coated, steel core wire with Class A Zn-5Al-MM alloy coating used for mechanical reinforcement in the manufacture of special aluminum and aluminum-alloy conductors, steel reinforced. The base metal shall be steel produced by the open-hearth, electric furnace, or basic oxygen process. The wire shall be cold drawn and coated with Zn-5Al-MM alloy to produce the desired properties. Chemical requirements of the steel, such as carbon, manganese, phosphorus, sulfur, and silicon shall meet the requirements prescribed in this specification. The Zn-5Al-MM-coated steel core wire shall conform to the tensile and elongation requirements. Test methods for tensile, wrap, coating and adherence shall be also be performed.
SCOPE
1.1 This specification covers round, high strength, zinc-5 % aluminum-mischmetal (Zn-5A1-MM) alloy-coated, steel core wire with Class A Zn-5A1-MM alloy coating used for mechanical reinforcement in the manufacture of special aluminum and aluminum-alloy conductors, steel reinforced.
1.2 This specification covers wire of diameter from 0.0500 to 0.1900 in. inclusive.
1.3 The values stated in inch-pound units or SI units are to be regarded separately as standard. The values 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 this specification.

General Information

• Status: Historical
• Publication Date: 09-Oct-2002
• ICS: 77.140.65 - Steel wire, wire ropes and link chains
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.05 - Conductors of Ferrous Metals

Relations

• Replaces: ASTM B803-98 - Standard Specification for High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum and Aluminum-Alloy Conductors, Steel Reinforced
• Effective Date: 10-Oct-2002
• Replaced By: ASTM B803-08 - Standard Specification for High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors
• Effective Date: 01-Nov-2008
• Referred By: ASTM B193-20 - Standard Test Method for Resistivity of Electrical Conductor Materials
• Effective Date: 10-Oct-2002
• Referred By: ASTM B258-18 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
• Effective Date: 10-Oct-2002

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
Designation: B 803 – 02
Standard Specification for
High-Strength Zinc–5 % Aluminum-Mischmetal Alloy-Coated
Steel Core Wire for Aluminum and Aluminum-Alloy
1
Conductors, Steel Reinforced
This standard is issued under the fixed designation B 803; 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 E 1277 Practice for Chemical Analysis of Zinc-5
Aluminum-MischmetalAlloys by ICPEmission Spectrom-
1.1 This specification covers round, high strength, zinc–5 %
6
etry
aluminum-mischmetal (Zn–5A1–MM) alloy-coated, steel core
2.3 Other Standard:
wire with Class A Zn–5A1–MM alloy coating used for
GF-1 Standard Practice for Determination of Cerium and
mechanical reinforcement in the manufacture of special alumi-
Lanthanum Compositions in GalfanAlloy (5 %Al-0.04 %
num and aluminum-alloy conductors, steel reinforced.
7
La-0.04 % Ce-Bal SHG Zn)
1.2 This specification covers wire of diameter from 0.0500
to 0.1900 in. inclusive.
3. Terminology
1.3 The values stated in inch-pound units or SI units are to
3.1 Abbreviations:Abbreviations:
be regarded separately as standard. The values in each system
3.1.1 MM—mischmetal
are not exact equivalents; therefore, each system shall be used
3.1.2 Zn–5A1–MM—zinc–5 % aluminum mischmetal
independently of the other. Combining values from the two
3.2 Definitions:
systems may result in nonconformance with this specification.
3.2.1 lot—unless otherwise specified in the contract or
2. Referenced Documents order, a lot shall consist of all coils of wire of the same
diameter and unit lengths submitted for inspection at the same
2.1 The following documents of the issue in effect on date
time.
of material purchase form a part of this specification to the
extent referenced herein.
4. Ordering Information
2.2 ASTM Standards:
4.1 Orders for material under this specification shall include
A 90/A90M Test Method for Weight [Mass] of Coating on
2 the following information:
Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
4.1.1 Quantity of each size,
A 370 Test Methods and Definitions for MechanicalTesting
3 4.1.2 Wire diameter in inches (Section 13),
of Steel Products
4.1.3 Certification, if required (Section 18),
A 751 Test Methods, Practices, and Terminology for
3 4.1.4 Test report, if required (Section 18), and
Chemical Analysis of Steel Products
4.1.5 Package Size (Section 19).
B 193 Test Method for Resistivity of Electrical Conductor
4
Materials
5. Materials and Manufacture
B 750 Specification for Zinc–5 % Aluminum-Mischmetal
5 5.1 The base metal shall be steel produced by the open-
Alloy in Ingot Form for Hot-Dip Coatings
hearth, electric furnace, or basic oxygen process.
E 47 Test Methods for Chemical Analysis of Zinc Die-
6 5.2 The wire shall be cold drawn and coated with
Casting Alloys
Zn–5A1–MM alloy to produce the desired properties.
6. Chemical Composition
1
This specification is under the jurisdiction of ASTM Committee B01 on
6.1 The steel shall conform to the requirements prescribed
Electrical Conductors and is the direct responsibility of Subcommittee B01.05 on
in Table 1.
Conductors of Ferrous Metals.
6.2 Chemical analysis of the steel shall be conducted in
Current edition approved Oct. 10, 2002. Published November 2002. Originally
published as B 803 – 89. Last previous edition B 803 – 98. accordance with Test Methods, Practices, and Terminology
2
Annual Book of ASTM Standards, Vol 01.06.
A 751.
3
Annual Book of ASTM Standards, Vol 01.03.
4
Annual Book of ASTM Standards, Vol 02.03.
5 7
Annual Book of ASTM Standards, Vol 02.04. Available from International Lead Zinc Research Organization, 2525 Meridian
6
Annual Book of ASTM Standards, Vol 03.05. Parkway, P.O. Box 12036, Research Triangle Park, NC 27709-2036
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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B 803–02
TABLE 1 Chemical Requirements
9. Coating Test
Element Composition, %
9.1 The Zn–5A1–MM alloy-coated wire shall conform to
Carbon 0.50 to 0.88
the coating requirements prescribed in Table 4.
Manganese 0.50 to 1.30
9.2 The coating test shall be conducted in accordance with
Phosphorus, max 0.035
Test Method A 90/A 90M.
Sulfur, max 0.045
Silicon 0.10 to 0.35
10. Adherence of Coating Test
10.1 The Zn–5A1–MM alloy-coated wire shall be capable
of being wrapped in a close helix at a rate not exceeding 15
6.3 The ingot form of zinc-5 % aluminum-mischmetal alloy
turns/min around a cylindrical mandrel having a diameter as
shall conform to Specification B 750.
prescribedinTable5,withoutcrackingorflakingthecoa
...