ASTM A640-97

    Standard Specification for Zinc-Coated Steel Strand for Messenger Support of Figure 8 Cable

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    1. Scope

    1.1 This specification covers two sizes of extra-high-strength grade of concentric-lay steel wire strand, composed of seven, zinc-coated steel wires, specifically intended for use as the supporting messenger in Figure 8-type communication and electrical cables.

    1.2 The values stated in inch-pound units are to be regarded as the standard.


    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

    A902 Terminology Relating to Metallic Coated Steel Products

    B6 Specification for Zinc


    UNSPSC Code

    UNSPSC Code 31152206(Coated steel wire)


    DOI: 10.1520/A0640-97

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