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AASHTO M 204M/M 204

2014 Edition, January 1, 2014

Complete Document

Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete

Includes all amendments and changes through Reapproval Notice , 2018


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Description / Abstract:

This specification covers two types of uncoated stress-relieved, round, high-carbon steel wire commonly used in prestressed linear concrete construction, as follows:

Type BA wire is used for applications in which cold-end deformation is used for anchoring purposes (Button Anchorage), and

Type WA wire is used for applications in which the ends are anchored by wedges, and no cold-end deformation of the wire is involved (Wedge Anchorage).

Supplement 1 describes low-relaxation wire and relaxation testing for that product.

This specification is applicable for orders in either SI units (M 204M) or in inch-pound units (M 204). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shown in brackets in the text for clarity, but they are the applicable values when the material is ordered to M 204.