ASTM B258.pdf

Designation: B 258 – 02

Standard Specification for

Standard Nominal Diameters and Cross-Sectional Areas of

AWG Sizes of Solid Round Wires Used as Electrical

Conductors

1

This standard is issued under the fixed designation B 258; 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.

nominal mass and lengths, resistances, and breaking strengths

of such wires (Explanatory Note 1).

1.2 The values stated in inch-pound or SI units are to be

regarded separately as standard. Each system shall be used

independently of the other. Combining values of the two

systems may result in nonconformance with the specification.

For conductor sizes designated by AWG or kcmil sizes, the

requirements in SI units have been numerically converted from

the corresponding values stated or derived, in inch-pound units.

For conductor sizes designated by SI units only, the require-

Telephone and Telegraph Line Wire

A 326 Specification for Zinc-Coated (Galvanized) High

Tensile Steel Telephone and Telegraph Line Wire

B 1 Specification for Hard-Drawn Copper Wire

B 2 Specification for Medium-Hard-Drawn Copper Wire

B 3 Specification for Soft or Annealed Copper Wire

B 47 Specification for Copper Trolley Wire

B 105 Specification for Hard-Drawn Copper Alloy Wires

B 189 Specification for Lead-Coated and Lead-Alloy-

B 193 Test Method for Resistivity of Electrical Conductor

B 314 Specification for Aluminum 1350 Wire for Commu-

B 396 Specification for Aluminum-Alloy 5005-H19 Wire

B 398/B 398M Specification for Aluminum-Alloy 6201-

B 415 Specification for Hard-Drawn Aluminum-Clad Steel

B 800 Specification for 8000 Series Aluminum Alloy Wire

E 29 Practice for Using Significant Digits in Test Data to

F 205 Test Method for Measuring Diameter of Fine Wire by

Electrical Conductors and is the direct responsibility of Subcommittee B01.02 on

Methods of Test and Sampling Procedure.

Current edition approved April 10, 2002. Published June 2002. Originally

published as B 258 – 51 T. Last previous edition B 258 – 01.