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ASTM B227-15

Current Revision

Standard Specification for Hard-Drawn Copper-Clad Steel Wire

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1.1 This specification covers bare hard-drawn round copper-clad steel wire for electrical purposes (Note 1).

Note 1: Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose, consult the manufacturer.

1.2 Four grades of wire are specified, designated as follows (Note 2): Grade 40 HS, Grade 40 EHS, Grade 30 HS, and Grade 30 EHS.

Note 2: The grades covered by this specification correspond to the following commercial designations:
   Grade 40 HS, High Strength, 40 % Conductivity.
   Grade 40 EHS, Extra High Strength, 40 % Conductivity
  Grade 30 HS, High Strength, 30 % Conductivity.
  Grade 30 EHS, Extra High Strength, 30 % Conductivity.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.


This specification covers bare hard-drawn round copper-clad steel wire. The surface of the wire shall be smooth and free from imperfections not consistent with good commercial practice. The wire shall conform to the tensile requirements. Specimens shall be twisted to destruction and shall not reveal under test any seams, pits, slivers, or surface imperfections of sufficient magnitude to indicate inherent defects or imperfections in the wire. The electrical resistance of the wire shall be determined by resistance measurements. The finished wire shall contain no joints or splices made at finished size.


SDO ASTM: ASTM International
Document Number B227
Publication Date April 1, 2015
Language en - English
Page Count 4
Revision Level 15
Supercedes
Committee B01.06
Publish Date Document Id Type View
April 1, 2015 B0227-15 Revision
May 1, 2010 B0227-10 Revision
April 1, 2004 B0227-04 Revision
Oct. 1, 2003 B0227-03 Revision
April 10, 2002 B0227-98 Revision
April 10, 2002 B0227-02 Revision
Not Available B0227-70R80 Revision
Oct. 1, 2024 B0227-15R24 Reaffirmation
Oct. 1, 2019 B0227-15R19 Reaffirmation