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    ASTM F2991-13

    Standard Guide for Doubler Plate Repairs for Non-Classed Ship Structures (Withdrawn 2021)

    Withdrawn Standard: ASTM F2991-13 | Developed by Subcommittee: F25.01


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    Withdrawn Rationale:

    This guide covers information for designing permanent steel doublers for surface ships that are not classed with any classification society, and not load line certified.

    Formerly under the jurisdiction of Committee F25 on Ships and Marine Technology, this guide was withdrawn in May 2021. This standard is being withdrawn without replacement due to its limited use by industry.

    1. Scope

    1.1 This guide covers information for designing permanent steel doublers for surface ships that are not classed with any classification society, and not load line certified. It is not intended to supersede any classification or statutory requirements.

    1.2 This guide provides owners, operators, shipyards, and designers with information for designing and using doubler plates so that the damaged structure regains its original local strength.

    1.3 When the steel is to be welded a welding procedure suitable for the grade of steel and intended use or service is to be utilized. See Appendix X3 of Specification A6/A6M for information on weldability.

    1.4 The values stated in metric units (SI) are to be regarded as the standard. The values given in parentheses (inch/pound) are provided for information only.

    1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.



    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

    A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling

    A36/A36M Specification for Carbon Structural Steel

    A131/A131M Specification for Structural Steel for Ships

    Other Documents

    SSC-443 Design Guidelines for Doubler Plate Repairs of Ship Structures Available from the Ship Structure Committee website: http://www.shipstructure.org/


    Referencing This Standard
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    DOI: 10.1520/F2991-13

    Citation Format

    ASTM F2991-13, Standard Guide for Doubler Plate Repairs for Non-Classed Ship Structures (Withdrawn 2021), ASTM International, West Conshohocken, PA, 2013, www.astm.org

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