ASTM G41-90(2006)

    Standard Practice for Determining Cracking Susceptibility of Metals Exposed Under Stress to a Hot Salt Environment

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    1. Scope

    1.1 This practice covers procedures for testing metals for embrittlement and cracking susceptibility when exposed under stress to a hot salt environment. This practice can be used for testing all metals for which service conditions dictate the need for such information. The test procedures described herein are generally applicable to all metal alloys; required adjustments in environmental variables (temperature, stress) to characterize a given materials system should be made. This practice describes the environmental conditions and degree of control required, and suggests means for obtaining this desired control.

    1.2 This practice can be used both for alloy screening for determination of relative susceptibility to embrittlement and cracking, and for the determination of time-temperature-stress threshold levels for onset of embrittlement and cracking. However, certain specimen types are more suitable for each of these two types of characterizations.

    Note 1

    This practice relates solely to the performance of the exposure test. No detailed description concerning preparation and analysis of specimen types is offered. However, the optimum sample design may be one that uses the same type of stress encountered in service loading situations. Standards describing principal types of stress corrosion specimens, their preparation, and analysis, include Practices G 30, G 38, and G 39.

    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. (For more specific safety hazard statements see Section 8.)

    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

    D1141 Practice for the Preparation of Substitute Ocean Water

    D1193 Specification for Reagent Water

    G1 Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens

    G30 Practice for Making and Using U-Bend Stress-Corrosion Test Specimens

    G38 Practice for Making and Using C-Ring Stress-Corrosion Test Specimens

    G39 Practice for Preparation and Use of Bent-Beam Stress-Corrosion Test Specimens

    G49 Practice for Preparation and Use of Direct Tension Stress-Corrosion Test Specimens

    ICS Code

    ICS Number Code 77.060 (Corrosion of metals)

    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/G0041-90R06

    Citation Format

    ASTM G41-90(2006), Standard Practice for Determining Cracking Susceptibility of Metals Exposed Under Stress to a Hot Salt Environment, ASTM International, West Conshohocken, PA, 2006,

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