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ASTM A421/A421M

Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete

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Organization: ASTM
Publication Date: 1 November 2015
Status: active
Page Count: 4
scope:

This specification covers two types of stress-relieved round high-carbon steel wire commonly 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). 

A supplementary requirement (S1) is provided for use where low-relaxation wire and relaxation testing for that product is required by the purchaser. The supplementary requirement applies only when specified in the purchase order.

This specification is applicable for orders in either inch-pounds units (as Specification A421) or in SI units (as Specification A421M).

The values stated in either inch-pound or SI units are to be regarded separately as standard.Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the specification.

*A Summary of Changes section appears at the end of this standard

Document History

ASTM A421/A421M
November 1, 2015
Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete
This specification covers two types of stress-relieved round high-carbon steel wire commonly used in prestressed concrete construction, as follows: Type BA wire is used for applications in which...
November 1, 2010
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
This specification covers two types of uncoated stressrelieved round high-carbon steel wire commonly used in prestressed linear concrete construction, as follows: Type BA wire is used for...
March 1, 2005
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
(Footnote *) 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...
September 10, 2002
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
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...
September 10, 1998
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
1. 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...
May 10, 1998
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
A description is not available for this item.
July 15, 1991
Standard Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
A description is not available for this item.
April 27, 1990
STANDARD SPECIFICATION FOR UNCOATED STRESS- RELIEVED STEEL WIRE FOR PRESTRESSED CONCRETE (AASHTO NO. M 204)
A description is not available for this item.
August 1, 1980
STANDARD SPECIFICATION FOR UNCOATED STRESS- RELIEVED STEEL WIRE FOR PRESTRESSED CONCRETE (R 1985) (AASHTO NO. M 204)
A description is not available for this item.

References

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