Standard Specification for Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR)

ABSTRACT
This specification covers round, zinc-aluminum mischmetal (Zn-5Al-MM) alloy-coated, steel core wire with three classes of this coating used for mechanical reinforcement in the manufacture of aluminum conductors, steel reinforced. The base metal shall be steel produced by the open-hearth, electric furnace, or basic oxygen process. The steel shall conform to the required chemical composition carbon, manganese, phosphorus, sulfur and silicon. The coated steel core wire shall conform to the required tensile and elongation properties. The wire shall be capable of being wrapped in a close helix around a cylindrical mandrel. For the purpose of calculating mass per unit length, cross sections, etc, the density of the material shall be taken. Wire diamter, mass and permissible variations shall be measured.
SCOPE
1.1 This specification covers round, zinc-5 % aluminum-mischmetal (Zn-5A1-MM) alloy-coated, steel core wire with three classes of Zn-5A1-MM coating used for mechanical reinforcement in the manufacture of aluminum conductors, steel reinforced (ACSR).
1.2 This specification covers wire of diameter from 0.0500 to 0.1900 in. or 1.60 to 4.80 mm, 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.

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09-Oct-2002
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ASTM B802/B802M-02 - Standard Specification for Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 802/B 802M – 02
Standard Specification for
Zinc–5 % Aluminum-Mischmetal Alloy-Coated Steel Core
1
Wire for Aluminum Conductors, Steel Reinforced (ACSR)
This standard is issued under the fixed designation B 802/B 802M; 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-Mischmetal Alloy by ICP Emission Spectrom-
1.1 This specification covers round, zinc–5 % aluminum-
6
etry
mischmetal (Zn–5A1–MM) alloy-coated, steel core wire with
2.3 Other Standard:
three classes of Zn–5A1–MM coating used for mechanical
GF-1 Standard Practice for Determination of Cerium and
reinforcement in the manufacture of aluminum conductors,
Lanthanum Compositions in GalfanAlloy (5 %Al-0.04 %
steel reinforced (ACSR).
7
La-0.04 % Ce-Bal SHG Zn)
1.2 This specification covers wire of diameter from 0.0500
to 0.1900 in. or 1.60 to 4.80 mm, 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 Definition:
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. Classification
2.2 ASTM Standards:
4.1 The wire is furnished in three classes of coating, Class
A 90/A 90M Test Method for Weight [Mass] of Coating on
2 A, Class B, or Class C, as specified, in conformance with the
Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
requirements of Section 10 and Table 1 or Table 2.
A 370 Test Methods and Definitions for MechanicalTesting
3
of Steel Products
5. Ordering Information
A 751 Test Methods, Practices andTerminology for Chemi-
3 5.1 Orders for material under this specification shall include
cal Analysis of Steel Products
the following information:
B 193 Test Method for Resistivity of Electrical Conductor
4 5.1.1 Quantity of each size,
Materials
5.1.2 Wire diameter in inches or millimetres (Section 14),
B 750 Specification for Zinc–5 % Aluminum-Mischmetal
5 5.1.3 Class of coating (see 4.1),
Alloy in Ingot Form for Hot-Dip Coatings
5.1.4 Certification, if required (Section 19),
E 47 Test Methods for Chemical Analysis of Zinc Die-
6 5.1.5 Test report, if required (Section 19), and
Casting Alloys
5.1.6 Package Size (Section 20).
1 6. Materials and Manufacture
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.05 on
6.1 The base metal shall be steel produced by the open-
Conductors of Ferrous Metals.
hearth, electric furnace, or basic oxygen process.
Current edition approved Oct. 10, 2002. Published November 2002. Originally
6.2 The wire shall be cold drawn and coated with
published as B 802 – 89. Last previous edition B 802 – 98.
2
Annual Book of ASTM Standards, Vol 01.06.
Zn–5A1–MM alloy to produce the desired properties.
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 802/B 802M – 02
TABLE 1 Zn-5A1-MM Alloy Coating
8. Tensile Test
2
Area Density of Coating, min, oz/ft of
8.1 The Zn–5A1–MM-coated steel core wire shall conform
Specified Diameter of Coated Wire,
Uncoated Wire Surface
to the tensile and elongation requirements prescribed in Table
in.
Class A Class B Class C
4 or Table 5.
0.0500 to 0.0599, incl 0.60 1.20 1.80
8.2 Tensile tests shall be conducted in accordance with Test
0.0600 to 0.0749, incl 0.65 1.30 1.95
Methods and Definitions A 370, using the initial settings for
0.0750 to 0.0899, incl 0.70 1.40 2.10
0.0900 to 0.1039, incl 0.75 1.50 2.25 determining stress at 1 % extension given in Table 6 or Table
0.1040 to 0.1199, incl 0.80 1.60 2.40
7 of this spe
...

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