ASTM A910/A910M-10

    Historical Standard: ASTM A910/A910M-10 Standard Specification for Uncoated, Weldless, 2- and 3-Wire Steel Strand for Prestressed Concrete

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    ASTM A910 / A910M

    1. Scope

    1.1 This specification covers two types and two grades of 2- and 3-wire, uncoated steel strand for use in pretensioned and posttensioned prestressed concrete construction. The two types of strand are low-relaxation and stress-relieved (normal-relaxation). Low-relaxation shall be regarded as the standard type. Stress-relieved (normal-relaxation) strand will not be furnished unless specifically ordered, or by arrangement between purchaser and supplier. The two grades are 1725 (250) and 1860 (270). Grades 250 and 270 have minimum tensile strengths of 1725 MPa (250 ksi) and 1860 MPa (270 ksi) respectively, based on the nominal area of the strand.

    1.2 The values stated in either inch-pound units or SI units are to be regarded as the 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 from the two systems may result in nonconformance 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.

    ASTM Standards

    A1061/A1061M Test Methods for Testing Multi-Wire Steel Strand

    U.S. Military Standard

    MIL-STD-129 Marking for Shipment and Storage

    Federal Standard

    Fed.Std.No.123 Marking for Shipments (Civil Agencies)


    ICS Code

    ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

    UNSPSC Code

    UNSPSC Code 31152207(Prestressed concrete steel wire)


    DOI: 10.1520/A0910_A0910M-10

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