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EXPERTISE // LABORATORIES // TESTING STANDARDS

Stress-Relieved Steel Wire for Prestressed Concrete

ASTM A421

This specification covers two types of uncoated stress-relieved round high-carbon steel wire commonly used in prestressed linear concrete construction. These two types are type BA used for applications in which cold-end deformation is used for anchoring purposes and type WA wire, which is used for applications in which the ends are anchored by wedges; no cold-end deformation of the wire is involved. Required tensile strength, yield strength, and elongation shall be evaluated using a stress-relaxation test. Heat analysis shall be used to determine the percentage of specified elements (especially sulfur and phosphorus) to meet the required chemical composition.

WJE laboratories are accredited by ANAB (ISO/IEC 17025) to perform testing standard ASTM A421 for Stress-Relieved Steel Wire for Prestressed Concrete. Contact us to learn more.

Keywords

ASTM A421 - Annealing - High-Carbon Steel - Prestressed Concrete - Prestressed Concrete Products - Steel Wires - Stress Relieving - Wires, Wire Strands, and Wire Ropes

ICS CODE

77.140.15 (Steels for reinforcement of concrete); 77.140.65 (Steel wire, wire ropes, and link chains)

UNSPSC CODE

31152207 (Prestressed concrete steel wire)

CITATION FORMAT

ASTM A421 / A421M-15, Standard Specification for Stress-Relieved Steel Wire for Prestressed Concrete, ASTM International, West Conshohocken, PA, 2015, www.astm.org

TESTING STANDARDS

Wiss, Janney, Elstner Associates is committed to helping our clients solve, repair, and avoid problems in the built world. Supported by unparalleled laboratory and field testing capabilities, our team of engineers, architects, and materials scientists brings an enthusiasm for problem solving and a hands-on technical approach to every challenge.

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EXPERTISE // LABORATORIES // TESTING STANDARDS