ASTM B869-96
(Specification)Standard Specification for Copper-Clad Steel Electrical Conductor for CATV Drop Wire
Standard Specification for Copper-Clad Steel Electrical Conductor for CATV Drop Wire
SCOPE
1.1 This specification covers 21% conductivity hard-drawn round copper-clad steel wire for coaxial cable center conductors (Note 1). Note 1-Wire ordered to this specification is not intended for redrawing since it is furnished in the hard-drawn temper. If wire is desired for the purpose, the manufacturer should be consulted.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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 869 – 96
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
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Copper-Clad Steel Electrical Conductor for CATV Drop Wire
This standard is issued under the fixed designation B 869; 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.
TABLE 1 Properties of Hard-Drawn 21 % Conductivity Copper-
1. Scope
Clad Steel Wire
1.1 This specification covers 21 % conductivity hard-drawn
Nominal Maximum
Permissible Minimum Copper
round copper-clad steel wire for coaxial cable center conduc-
Diameter, Resistance at
A A
Variations Thickness, in.
A
tors (Note 1). in. 20°C/1000 ft
0.0641 60.0006 in. 12.228 0.00096
NOTE 1—Wire ordered to this specification is not intended for redraw-
0.0571 60.0006 in. 15.150 0.00086
ing since it is furnished in the hard-drawn temper. If wire is desired for the
0.0508 60.0005 in. 19.143 0.00076
purpose, the manufacturer should be consulted.
0.0453 60.0005 in. 24.096 0.00068
0.0403 60.0004 in. 30.412 0.00060
1.2 The values stated in inch-pound units are to be regarded
0.0320 60.0003 in. 48.232 0.00048
as the standard. The values given in parentheses are for
0.0285 60.0003 in. 60.825 0.00043
information only.
A
Metric equivalents: 1 in. 5 25.4 mm (round to four significant figures).
2. Referenced Documents
4.2 The finished copper-clad steel wire shall conform to the
2.1 The following documents, of the issue in effect on the
requirements in this specification.
date of material purchase, form a part of this specification to
the extent referenced herein.
5. Dimensions and Permissible Variations
2.2 ASTM Standards:
5.1 The size shall be expressed as the diameter of the wire
B 193 Test Method for Resistivity of Electrical Conductor
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in decimal fractions of an inch, using four places of decimals,
Materials
that is, in tenths of a mil (Note 2).
B 258 Specification for Standard Nominal Diameters and
Cross-Sectional Areas of AWG Sizes of Solid Round Wires
NOTE 2—The values of wire diameters in Table 1 and Table 2 are given
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Used as Electrical Conductors
to the nearest 0.0001 in. (0.0025 mm) and correspond to the standard sizes
2.3 NIST Document: given in Specification B 258. In specifying diameters of wire or inspecting
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wire, the diameter should also be expressed to the fourth decimal place.
NBS Handbook 100—Copper Wire Tables
An excellent discussion of wire gages and related subjects is contained in
NBS Handbook 100.
3. Ordering Information
5.2 Within the range of diameters included in Table 1, the
3.1 Orders for material under this specification shall include
wire shall not vary from the specified diameter by more than6
the following information:
1 %, expressed to the nearest 0.0001 in. (0.0025 mm).
3.1.1 Quantity of each size;
5.3 Ten percent, but not less than five reels (or all, if the lot
3.1.2 Wire size: diameter in inches (see 5.1 and Table 1);
is less than five), from any lot of wire shall be gaged. All reels
3.1.3 Package size (see 15.1);
shall be gaged if any of the selected reels fail to conform to the
3.1.4 Special package marking, if required (Section 15); and
requirements for diameter.
3.1.5 Place of inspection (13.2).
6. Workmanship, Finish, and Appearance
4. Material
6.1 The surface of the wire shall be free from imperfections
4.1 The wire shall be composed of a steel core with a
and be consistent with good commercial practice.
substantially uniform and continuous copper cladding thor-
oughly bonded to it throughout.
7. Tensile and Elongation Properties
7.1 The wire shall conform to a minimum tensile require-
1 ment of 120 000 psi (827 MPa) and a minimum elongation
This specification is under the jurisdiction of ASTM Committee B-1 on
requirement of 1.0 %.
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
Composite Conductors.
7.2 Tension tests shall be made on representative samples.
Current edition approved March 10, 1996. Published May 1996.
Unless otherwise agreed upon between the manufacturer and
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Annual Book of ASTM Standards, Vol 02.03.
3
the purchaser, the elongation shall be determined by measure-
Available from National Institute of Standards and Technology (NIST),
Gaithersburg, MD 20899. ments made between the jaws of the testing machine. The zero
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NOTICE:¬This¬standard¬has¬either¬been¬superseded¬and¬replaced¬by¬a¬new¬version¬or
discontinued.¬Contact¬ASTM¬International¬(www.astm.org)¬for¬the¬latest¬information.¬
B 869
TABLE 2 Approximate Properties
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