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ASTM A111 - 99a(2009)


This specification covers the Standard requirements for iron wire with Class A, Class B, and Class C zinc coatings suitable for use in telephone, telegraph, and signal transmission lines. The zinc used for the coatings shall be of any grade while the base metal shall be made by any commercially-accepted steel-making process. The wire shall be furnished in coils of one continuous length and the welds made prior to the final drawing shall be permitted. Stripping, mechanical, and electrical tests shall be performed, wherein the specimens shall conform to the following required physical, mechanical, and electrical properties: weight and adherence of the coating; breaking strength, elongation, and ductility of the galvanized wire; and weight resistivity of the wire. Finished products shall be furnished in compact coils reasonably symmetrical in shape and marked showing the size, grade, class of coating, ASTM designation, and the name or mark of the manufacturer.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the Standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope


1.1 This specification covers “iron” wire with Class A, Class B, and Class C zinc coatings, suitable for use in telephone, telegraph, and signal transmission.

1.2 The values stated in inch-pound units are to be regarded as Standard. The values given in parentheses are for information only.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the Standard.
ASTM Standards

A90/A90M Test Method for Weight [Mass] of Coating on Iron and steel Articles with Zinc or Zinc-Alloy Coatings
A370 Test Methods and Definitions for Mechanical Testing of steel Products
A902 Terminology Relating to Metallic Coated steel Products
B6 Specification for Zinc
B193 Test Method for Resistivity of Electrical Conductor Materials


Index Terms


iron products—zinc-coated; steel wire—zinc-coated; telephone/telegraph wire; Communications--specifications; Iron--specifications; Iron products (general)--zinc-coated (hot-dip galvanized); Line wire; Telephone systems; Zinc-coated steel wire--specifications;




ICS Code


ICS Number Code 33.120.20 (Wires and symetrical cables)



DOI: 10.1520/A0111-99AR09

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ASTM A111 (Steel Standards)

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