ASTM A416/A416M-99

    Historical Standard: ASTM A416/A416M-99 Standard Specification for Steel Strand, Uncoated Seven-Wire for Prestressed Concrete

    SUPERSEDED (see Active link, below)


    Buy Standard (PDF)
    5 pages
    $50.40

    Active (view current version of standard)


    ASTM A416 / A416M

    1. Scope

    1.1 This specification covers two types and two grades of seven-wire, uncoated steel strand for use in pretensioned and post-tensioned prestressed concrete construction. The two types of strand are low-relaxation and stress-relieved (normal-relaxation). Low-relaxation strand 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. Grade 250 [1725] and Grade 270 [1860] have minimum ultimate strengths of 250000 psi [1725 MPa] and 270000 psi [1860 MPa], 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 standard. Within the text, the SI units are shown in brackets. 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

    A981/A981M Test Method for Evaluating Bond Strength for 0.600-in. [15.24-mm] Diameter Steel Prestressing Strand, Grade 270 [1860], Uncoated, Used in Prestressed Ground Anchors

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

    U.S. Military Standards

    MIL-STD-129 Marking for Shipment and Storage

    U.S. 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/A0416_A0416M-99

    ASTM International is a member of CrossRef.


    Citing ASTM Standards
    Back to Top