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ASTM A 421/A421M : 2015

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete

Available format(s)

Hardcopy , PDF

Superseded date

21-05-2021

Language(s)

English

Published date

03-12-2015

This specification covers two types of stress-relieved round high-carbon steel wire commonly used in prestressed concrete construction, as follows:Type BAwire is used for applications in which cold-end deformation is used for anchoring purposes (Button Anchorage), andType WAwire is used for application in which the ends are anchored by wedges, and no cold-end deformation of the wire is involved (Wedge Anchorage).

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

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

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

1.2A 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.

1.3This specification is applicable for orders in either inch-pounds units (as Specification A421) or in SI units (as Specification A421M).

1.4The 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.

Committee
A 01
DocumentType
Standard
Pages
4
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM C 913 : 2018 Standard Specification for Precast Concrete Water and Wastewater Structures
ASTM C 1089 : 2019 Standard Specification for Spun Cast Prestressed Concrete Poles
ASTM C 935 : 2019 Standard Specification for General Requirements for Prestressed Concrete Poles Statically Cast
ASTM A 1096/A1096M : 2015 Standard Test Method for Evaluating Bond of Individual Steel Wire, Indented or Plain, for Concrete Reinforcement
ASTM A 881/A881M : 2016 : REV A Standard Specification for Steel Wire, Indented, Low-Relaxation for Prestressed Concrete
ASTM C 1804 : 2020 Standard Specification for Spun Cast Prestressed Concrete Bases for Tapered Steel Lighting Poles

ASTM E 328 : 2020 Standard Test Methods for Stress Relaxation for Materials and Structures
ASTM E 328 : 2013 Standard Test Methods for Stress Relaxation Tests for Materials and Structures
ASTM A 370 : 2011 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM E 328 : 2021 Standard Test Methods for Stress Relaxation for Materials and Structures

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