ASTM B803-08

Standard Specification for High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors

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–5Al–MM) alloy-coated, steel core wire with one class of Zn–5Al–MM coating (MA3) for use in overhead electrical conductors.
1.2 This specification covers wire of diameter from 0.0500 to 0.1900 in. inclusive or 1.27 to 4.82 mm inclusive.
1.3 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.

General Information

• Status: Historical
• Publication Date: 31-Oct-2008
• ICS: 29.060.20 - Cables
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.05 - Conductors of Ferrous Metals

Relations

• Replaces: 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
• Effective Date: 01-Nov-2008
• Replaced By: ASTM B803/B803M-08e1 - 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 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: 01-Nov-2008
• Referred By: ASTM B193-20 - Standard Test Method for Resistivity of Electrical Conductor Materials
• Effective Date: 01-Nov-2008

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:B803 −08
StandardSpecification for
High-Strength Zinc–5% Aluminum-Mischmetal Alloy-Coated
1
Steel Core Wire for Use in Overhead Electrical Conductors
This standard is issued under the fixed designation B803; 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.
3
1. Scope* Casting Alloys (Withdrawn 1997)
E1277 Test Method for Chemical Analysis of Zinc-5 %
1.1 This specification covers round, high strength, zinc–5 %
Aluminum-Mischmetal Alloys by ICP Emission Spec-
aluminum-mischmetal (Zn–5Al–MM) alloy-coated, steel core
trometry
wire with one class of Zn–5Al–MM coating (MA3) for use in
E29 Practice for Using Significant Digits in Test Data to
overhead electrical conductors.
Determine Conformance with Specifications
1.2 This specification covers wire of diameter from 0.0500 2.3 Other Standard:
to 0.1900 in. inclusive or 1.27 to 4.82 mm inclusive.
GF-1 Standard Practice for Determination of Cerium and
Lanthanum Compositions in GalfanAlloy (5 %Al-0.04 %
1.3 The values stated in either SI units or inch-pound units
4
La-0.04 % Ce-Bal SHG Zn)
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
3. Terminology
system shall be used independently of the other. Combining
3.1 Abbreviations:
values from the two systems may result in non-conformance
3.1.1 MM—mischmetal
with the standard.
3.1.2 Zn–5Al–MM—zinc–5 % aluminum mischmetal alloy
2. Referenced Documents
3.2 Definitions:
3.2.1 lot—unless otherwise specified in the contract or
2.1 The following documents of the issue in effect on date
order, a lot shall consist of all coils of wire of the same
of material purchase form a part of this specification to the
diameter and unit lengths submitted for inspection at the same
extent referenced herein.
time.
2
2.2 ASTM Standards:
3.2.2 Product Code—Defines product coating type, coating
A90/A90M Test Method for Weight [Mass] of Coating on
class and strength grade. This specification covers only High
Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
StrengthClassA Zn–5Al–MMcoatedproductsandidentifiedas
A370 Test Methods and Definitions for Mechanical Testing
product code MA3.
of Steel Products
A751 Test Methods, Practices, and Terminology for Chemi-
4. Ordering Information
cal Analysis of Steel Products
4.1 Orders for material under this specification shall include
B193 Test Method for Resistivity of Electrical Conductor
the following information:
Materials
4.1.1 Quantity of each size,
B750 Specification for GALFAN (Zinc-5 % Aluminum-
4.1.2 Wire diameter in inches or millimeters (Section 13),
Mischmetal) Alloy in Ingot Form for Hot-Dip Coatings
4.1.3 Certification, if required (Section 18),
E47 Test Methods for Chemical Analysis of Zinc Die-
4.1.4 Test report, if required (Section 18), and
4.1.5 Package Size (Section 19).
4.1.6 Product Code (Paragraph 3.2.2).
1
This specification is under the jurisdiction of ASTM Committee B01 on
4.1.7 Order Example: five multiple lengths of 12 000 ft.
Electrical Conductors and is the direct responsibility of Subcommittee B01.05 on
each, 0.1327 in. MA3 wire, packaged onto wooden non-
Conductors of Ferrous Metals.
returnable reels, with certified test report.
Current edition approved Nov. 1, 2008. Published December 2008. Originally
approved in 1989. Last previous edition approved in 2002 as B803 – 02. DOI:
10.1520/B0803-08.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The last approved version of this historical standard is referenced on
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM www.astm.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available from International Lead Zinc Research Organization, 2525 Meridian
the ASTM website. Parkway, P.O. Box 12036, Research Triangle Park, NC 27709-2036
*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
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B803−08
TABLE 2 Tensile Requirements
5. Materials and Manufacture
Stress at 1 % Ultimate Tensile Elongation in 10
5.1 The base metal shall be steel produced by the open- Specified Diameter
Extension, min Strength, min in., min %
hearth, electric furnace, or basic oxygen process.
in. ksi ksi
5.2 The wire shall be cold drawn and coated with 0.0500 to 0.0899, incl 210 235 3.0
0.0900 to 0.1199, incl 205 230 3.0
Zn–5Al–MM alloy to produce the desired properties.
0.1200 to 0.1399, incl 200 225 3.5
0.1400 to
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B 803–02 Designation: B 803 – 08
Standard Specification for
High-Strength Zinc–5% Aluminum-Mischmetal Alloy-Coated
Steel Core Wire for Aluminum and Aluminum-Alloy
Conductors, Steel ReinforcedHigh-Strength Zinc–5 %
Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use
1
in Overhead Electrical Conductors
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1This 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.
1.2This specification covers wire of diameter from 0.0500 to 0.1900 in. inclusive.
1.3The 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. *
1.1 This specification covers round, high strength, zinc–5 % aluminum-mischmetal (Zn–5Al–MM) alloy-coated, steel core wire
with one class of Zn–5Al–MM coating (MA3) for use in overhead electrical conductors.
1.2 This specification covers wire of diameter from 0.0500 to 0.1900 in. inclusive or 1.27 to 4.82 mm inclusive.
1.3 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.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein.
2
2.2 ASTM Standards:
A 90/A 90M Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B 193 Test Method for Resistivity of Electrical Conductor Materials
B 750 Specification for GALFAN (Zinc–-5 % Aluminum-Mischmetal) Alloy in Ingot Form for Hot-Dip Coatings
E 47 Test Methods for Chemical Analysis of Zinc Die-Casting Alloys
6
E 1277Practice for Chemical Analysis of Zinc-5 Aluminum-Mischmetal Alloys by ICP Emission Spectrometry Test Method
for Chemical Analysis of Zinc-5 % Aluminum-Mischmetal Alloys by ICP Emission Spectrometry
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
2.3 Other Standard:
GF-1StandardGF-1 Standard Practice for Determination of Cerium and Lanthanum Compositions in Galfan Alloy (5 %
3
Al-0.04 % La-0.04 % Ce-Bal SHG Zn)
1
This specification is under the jurisdiction of ASTM Committee B01 on Electrical Conductors and is the direct responsibility of Subcommittee B01.05 on Conductors
of Ferrous Metals.
Current edition approved Oct. 10, 2002. Published November 2002. Originally published as B803–89. Last previous edition B803–98.
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1989. Last previous edition approved in 2002 as B 803 – 02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
, Vol 01.06.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 01.03.
3
Available from International Lead Zinc Research Organization, 2525 Meridian Parkway, P.O. Box 12036, Research Triangle Park, NC 27709-2036
*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

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B 803–08
3. Terminology
3.1 Abbreviations:Abbreviations:
3.1.1 MM—mischmetal
3.1.2 Zn–5A1–MM—zinc–5% aluminum mischmetal Zn–5Al–MM—zinc–5 % aluminum mischmetal alloy
3.2 Definitions:
3.2.1 lot—unless otherwise specified in the contract or order, a
...