ASTM B415-98

Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire

SCOPE
1.1 This specification covers zinc master alloys which are used in hot dip galvanizing for the purpose of adjusting the concentration of certain alloying elements in the molten zinc bath. covers the chemical composition of these materials which include three master alloys of zinc-aluminum (brightener) and one master alloy of zinc-antimony.  ASTMCommonUNSType A-190/10 Zn/Al High PurityZ30750Type A-290/10 Zn/Al Low PurityZ31710Type A-395/5 Zn/Al High PurityZ30503Type A-495/5 Zn/Al Low PurityZ31510Type S-190/10 Zn/SbZ55710
1.2 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 become familiar with all hazards including those identified in the appropriate Material Data Sheet for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Mar-1998
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.06 - Bi-Metallic Conductors

Relations

• Replaced By: ASTM B415-98(2002) - Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire
• Effective Date: 10-Mar-1998

Standards Content (Sample)

Designation: B 415 – 98
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
1
Hard-Drawn Aluminum-Clad Steel Wire
This standard is issued under the fixed designation B 415; 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 4. Material
1.1 This specification covers four conductivities of bare, 4.1 The wire shall be composed of a steel core with a
hard-drawn, round, aluminum-clad steel wire for general use substantially uniform and continuous aluminum covering thor-
for electrical purposes in sizes 0.2043 to 0.0808 in. incl (4 to 12 oughly bonded to it. The drawn wire shall have the properties
AWG) (Note 1). This specification does not apply to wires used and characteristics prescribed in this specification.
as reinforcement in ACSR conductors. (See Specification
5. Tensile Properties
B 502.)
5.1 The wire shall conform to the tensile requirements
NOTE 1—Wire ordered to this specification is not intended for redraw-
prescribed in Table 1 (Note 2). In computing tensile strength,
ing. If wire is desired for this purpose, the manufacturer shall be
the actual diameter of the finished wire shall be used.
consulted.
NOTE 2—The approximate properties of standard AWG sizes of hard-
1.2 The values stated in inch-pound units are to be regarded
drawn aluminum-clad steel wire are shown in Table 2 for the information
as the standard. The metric equivalents of inch-pound units
of the user of this specification.
may be approximate.
5.2 Wire of a nominal diameter that exceeds a size listed in
2. Referenced Documents
Table 1 shall conform to the tensile requirements of the next
2.1 The following documents of the issue in effect on the larger diameter.
date of material purchase form a part of this Specification to the 5.3 Elongation shall be determined by an extensometer
extent referenced herein. suitable for measuring elongation in 10 in. (250 mm) and
2.2 ASTM Standards: equipped with a vernier reading to 0.01 in. (0.25 mm). It shall
B 193 Test Method for Resistivity of Electrical Conductor be attached to the test specimen at a tensile load of 10 % of the
2
Materials rated strength. The elongation shall be observed while applying
B 502 Specification for Aluminum-Clad Steel Core Wire for a tension load to the specimen. The reading at the time of
2
Aluminum Conductors, Aluminum-Clad Steel Reinforced fracture shall be taken as the elongation of the specimen. The
elongation thus determined shall be not less than 1.5 % in 10
3. Ordering Information
in. Tests shall be disregarded in which the extensometer
3.1 Orders for material under this specification shall include reading is less than 1.5 % and in which the fracture does not
the following information:
occur between the extensometer attachments and at least 1 in.
3.1.1 Quantity and conductivity of each size,
(25.0 mm) from the two attachments. In this case another
3.1.2 Wire size: diameter in inches (see 7.1 and Table 1), sample from the same reel or coil shall be tested.
3.1.3 Method of measuring elongation if other than 5.3
5.4 When agreed upon by the manufacturer and the pur-
(optional), chaser, the elongation may be determined by measurements
3.1.4 Special package marking if required (Section 16), and
made between the jaws of the testing machine. The zero length
3.1.5 Package size (see 17.1), and shall be the distance between the jaws when a load equal to
3.1.6 Place of inspection if other than place of manufacture
10 % of the specified tensile strength shall have been applied
(Section 14). and the final length shall be the distance between the jaws at
the time of rupture. The zero length shall be as near 60 in. (1.52
m) as practicable. The elongation thus determined shall be not
1
This specification is under the jurisdiction of ASTM Committee B-1 on
less than 1.4 %. Tests in which the elongation is less than 1.4 %
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
and in which the fracture occurs at or within 1 in. (25.4 mm)
Composite Conductors of Copper and Steel.
of the jaws shall be disregarded. In this case another sample
Current edition approved March 10, 1998. Published September 1998. Originally
published as B415 – 64 T. Last previous edition B415 –92. from the same reel or coil shall be tested.
2
Annual Book of ASTM Standards, Vol 02.03.
1

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B 415
TABLE 1 Tensile Requirements
20 % 27 % 30 % 40 %
Nominal Size,
Diameter, in. AWG
psi MPa psi MPa psi MPa psi MPa
0.2043 4 155 000 1070 125 000 862 102 000 703 80 000 552
0.1880 160 000 1100 129 000 889 106 000 731 84 000 579
0.1819 5 165 000 1140 133 000 917 110 000
...