ASTM G111 - 97(2013)

    Standard Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both

    Active Standard ASTM G111 | Developed by Subcommittee: G01.05

    Book of Standards Volume: 03.02


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    Significance and Use

    5.1 HP and HTHP corrosion tests are commonly used to evaluate the corrosion performance of metallic materials under conditions that attempt to simulate service conditions that involve HP or HTHP in combination with service environments. Examples of service environments where HP and HTHP corrosion tests have been utilized include chemical processing, petroleum production and refining, food processing, pressurized cooling water, electric power systems and aerospace propulsion.

    5.2 For the applications of corrosion testing listed in 5.1, the service involves handling corrosive and potentially hazardous media under conditions of high pressure or high temperature, or both. The temperature and pressure usually enter directly into the severity of the corrosion process. Consequently, the laboratory evaluation of corrosion severity cannot be performed in conventional low pressure glassware without making potentially invalid assumptions as to the potential effects of high temperature and pressure on corrosion severity.

    5.3 Therefore, there is a substantial need to provide standardized methods by which corrosion testing can be performed under HP and HTHP. In many cases, however, the standards used for exposure of specimens in conventional low pressure glassware experiments cannot be followed due to the limitations of access, volume and visibility arising from the construction of high pressure test cells. This guide refers to existing corrosion standards and practices as applicable and then goes further in areas where specific guidelines for performing HP and HTHP corrosion testing are needed.

    1. Scope

    1.1 This guide covers procedures, specimens, and equipment for conducting laboratory corrosion tests on metallic materials under conditions of high pressure (HP) or the combination of high temperature and high pressure (HTHP). See 3.2 for definitions of high pressure and temperature.

    1.2 Tests conducted under HP or HTHP by their nature have special requirements. This guide establishes the basic considerations that are necessary when these conditions must be incorporated into laboratory corrosion tests.

    1.3 The procedures and methods in this guide are applicable for conducting mass loss corrosion, localized corrosion, and electrochemical tests as well as for use in environmentally induced cracking tests that need to be conducted under HP or HTHP conditions.

    1.4 The primary purpose for this guide is to promote consistency of corrosion test results. Furthermore, this guide will aid in the comparison of corrosion data between laboratories or testing organizations that utilize different equipment.

    1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

    1.6 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

    E8 Test Methods for Tension Testing of Metallic Materials

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

    G3 Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing

    G5 Reference Test Method for Making Potentiodynamic Anodic Polarization Measurements

    G15 Terminology Relating to Corrosion and Corrosion Testing

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

    G31 Guide for Laboratory Immersion Corrosion Testing of Metals

    G34 Test Method for Exfoliation Corrosion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Test)

    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

    G46 Guide for Examination and Evaluation of Pitting Corrosion

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

    G59 Test Method for Conducting Potentiodynamic Polarization Resistance Measurements

    G78 Guide for Crevice Corrosion Testing of Iron-Base and Nickel-Base Stainless Alloys in Seawater and Other Chloride-Containing Aqueous Environments

    G106 Practice for Verification of Algorithm and Equipment for Electrochemical Impedance Measurements


    ICS Code

    ICS Number Code 77.060 (Corrosion of metals)

    UNSPSC Code

    UNSPSC Code 41114604(Corrosion testers)


    DOI: 10.1520/G0111

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