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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 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.

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

1.4 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 standard.

Keywords

cold-drawn wire; low-relaxation wire; prestressed concrete; steel wire (tendon); stress-relieved wire; Concrete reinforcement--specifications; Prestressed concrete; Steel wire (prestressed concrete); Cold-drawn steel wire--specifications; Steel wire (tendon); Stress-relieved steel wire; Uncoated steel; ICS Number Code 77.140.15 (Steels for reinforcement of concrete); 77.140.65 (Steel wire, wir ropes and link chains)

To find similar documents by ASTM Volume:

01.04 (Steel--Structural, Reinforcing, Pressure Vessel, Railway)

To find similar documents by classification:

77.140.15 (Steels for reinforcement of concrete)

77.140.65 (Steel wire, wire ropes and link chains Lifting link chains and wire ropes, see 53.020.30 Steel wire for springs, see 77.140.25)

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