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About This Item

 

Full Description

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

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

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

1.2 Supplement I describes low relaxation wire and relaxation testing for that product.

1.3 The values stated in either inch-pound or SI units are to be regarded as standard. Within the text, the inch-pound units are shown in parentheses. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other, without combining values in any way.

 

Document History

  1. ASTM A421/A421M-21


    Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete

    • Most Recent
  2. ASTM A421/A421M-15


    Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete

    • Historical Version
  3. ASTM A421/A421M-10


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

    • Historical Version
  4. ASTM A421/A421M-05


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

    • Historical Version
  5. ASTM A421/A421M-02

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

    • Historical Version
  6. ASTM A421/A421M-98a


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

    • Historical Version