ASTM A911/A911M-05

    Standard Specification for Uncoated, Stress-Relieved Steel Bars for Prestressed Concrete Ties

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    1. Scope

    1.1 This specification covers uncoated stress-relieved steel bars for use in prestressed concrete railroad ties.

    1.2 Supplement I describes low-relaxation bars and relaxation testing for that product. Low-relaxation bars shall be furnished when specifically ordered, and may be furnished in place of regular bars if mutually agreed to by the purchaser and manufacturer.

    1.3 This specification is applicable for orders in either inch-pounds units (as Specification A 911) or in SI units (as Specification A 911M).

    1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standards. 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

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    E328 Test Methods for Stress Relaxation for Materials and Structures

    Federal Standard

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

    Military Standards

    MIL-STD-129 Marking for Shipment and Storage

    ICS Code

    ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

    UNSPSC Code

    UNSPSC Code

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/A0911_A0911M-05

    Citation Format

    ASTM A911 / A911M-05, Standard Specification for Uncoated, Stress-Relieved Steel Bars for Prestressed Concrete Ties, ASTM International, West Conshohocken, PA, 2005,

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