ASTM A421/A421M-05
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete

Standard No.

ASTM A421/A421M-05

Release Date

2005

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM A421/A421M-10

Latest

ASTM A421/A421M-21

Scope

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.

ASTM A421/A421M-05 history

• 2021 ASTM A421/A421M-21 Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete
• 2015 ASTM A421/A421M-15 Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete
• 2010 ASTM A421/A421M-10 Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
• 2005 ASTM A421/A421M-05 Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
• 2002 ASTM A421/A421M-02 Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
• 1998 ASTM A421/A421M-98a Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete