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1.1 This specification covers uncoated, deformed, stress-relieved, and stress-relieved low-relaxation wire for use as prestressed tendons in concrete railroad ties.
1.2 The values stated in either-inch-pound units or SI units are to be regarded separately as standard. Within the text, the inch-pound units are shown in parentheses. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values for the two systems may result in non-conformance with the specification.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A421/A421M Specification for Uncoated Stress-Relieved Steel Wire for Prestressed Concrete
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
E328 Test Methods for Stress Relaxation for Materials and Structures
U.S. Military StandardsMIL-STD-129 Marking for Shipment and Storage
U.S. Federal StandardFed.Std.No.123 Marking for Shipment (Civil Agencies)
ICS Number Code 77.140.15 (Steels for reinforcement of concrete)