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1.1 This specification describes three grades of compacted, seven-wire, uncoated, stress-relieved strand for use in pre-tensioned and post-tensioned prestressed concrete construction.
1.2 Supplement I describes low-relaxation strand and low-relaxation testing.
1.3 The values stated in either inch-pound or SI units are to be regarded 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 shall be used independently of the other, without combining values in any way.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
U.S. Military StandardMIL-STD-129 Marking for Shipment and Storage
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A994 Guide for Editorial Procedures and Form of Product Specifications for Steel, Stainless Steel, and Related Alloys
A1061/A1061M Test Methods for Testing Multi-Wire Steel Strand
U.S. Federal StandardFed. Std. No. 123 Marking for Shipments (Civil Agencies)
ICS Number Code 29.060.01 (Electrical wires and cables in general)
UNSPSC Code 31152207(Prestressed concrete steel wire)
ASTM A779 / A779M-10, Standard Specification for Steel Strand, Seven-Wire, Uncoated, Compacted, Stress-Relieved for Prestressed Concrete, ASTM International, West Conshohocken, PA, 2010, www.astm.orgBack to Top