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ASTM
A421/A421M-21
Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete
2021
4
ASTM Vol.01.04 (2022)
This specification covers two types of stress-relieved round high-carbon steel wire used in prestressed 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 application in which the ends are anchored by wedges, and no cold-end deformation of the wire is involved (Wedge Anchorage).
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