ASTM G111-97(2013)
(Guide)Standard Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both
Standard Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both
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.
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.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: G111 − 97 (Reapproved 2013)
Standard Guide for
Corrosion Tests in High Temperature or High Pressure
1
Environment, or Both
This standard is issued under the fixed designation G111; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope G1 Practice for Preparing, Cleaning, and Evaluating Corro-
sion Test Specimens
1.1 This guide covers procedures, specimens, and equip-
G3 Practice for Conventions Applicable to Electrochemical
ment for conducting laboratory corrosion tests on metallic
Measurements in Corrosion Testing
materials under conditions of high pressure (HP) or the
G5 Reference Test Method for Making Potentiodynamic
combination of high temperature and high pressure (HTHP).
Anodic Polarization Measurements
See 3.2 for definitions of high pressure and temperature.
G15 Terminology Relating to Corrosion and Corrosion Test-
1.2 Tests conducted under HPor HTHPby their nature have
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ing (Withdrawn 2010)
special requirements. This guide establishes the basic consid-
G30 Practice for Making and Using U-Bend Stress-
erations that are necessary when these conditions must be
Corrosion Test Specimens
incorporated into laboratory corrosion tests.
G31 Guide for Laboratory Immersion Corrosion Testing of
1.3 The procedures and methods in this guide are applicable
Metals
for conducting mass loss corrosion, localized corrosion, and
G34 Test Method for Exfoliation Corrosion Susceptibility in
electrochemical tests as well as for use in environmentally
2XXX and 7XXX Series Aluminum Alloys (EXCO Test)
induced cracking tests that need to be conducted under HP or
G38 Practice for Making and Using C-Ring Stress-
HTHP conditions.
Corrosion Test Specimens
1.4 The primary purpose for this guide is to promote G39 Practice for Preparation and Use of Bent-Beam Stress-
Corrosion Test Specimens
consistency of corrosion test results. Furthermore, this guide
will aid in the comparison of corrosion data between labora- G46 Guide for Examination and Evaluation of Pitting Cor-
tories or testing organizations that utilize different equipment. rosion
G49 Practice for Preparation and Use of Direct Tension
1.5 The values stated in SI units are to be regarded as
Stress-Corrosion Test Specimens
standard. The values given in parentheses are for information
G59 Test Method for Conducting Potentiodynamic Polariza-
only.
tion Resistance Measurements
1.6 This standard does not purport to address all of the
G78 Guide for Crevice Corrosion Testing of Iron-Base and
safety concerns, if any, associated with its use. It is the
Nickel-Base Stainless Alloys in Seawater and Other
responsibility of the user of this standard to establish appro-
Chloride-Containing Aqueous Environments
priate safety and health practices and determine the applica-
G106 Practice for Verification of Algorithm and Equipment
bility of regulatory limitations prior to use.
for Electrochemical Impedance Measurements
2. Referenced Documents
3. Terminology
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2.1 ASTM Standards:
E8 Test Methods for Tension Testing of Metallic Materials 3.1 Definitions—ThedefinitionsoftermsgiveninTerminol-
ogy G15 shall be considered as applying to this guide.
3.2 Definitions of Terms Specific to This Standard:
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This guide is under the jurisdiction ofASTM Committee G01 on Corrosion of
Metals and is the direct responsibility of Subcommittee G01.05 on Laboratory
3.2.1 high pressure—a pressure above ambient atmospheric
Corrosion Tests.
pressure that cannot be contained in normal laboratory glass-
CurrenteditionapprovedMay1,2013.PublishedJuly2013.Originallyapproved
ware. Typically, this is greater than 0.07 MPa (10 psig).
in 1992. Last previous edition approved in 2006 as G111–97 (2006). DOI:
10.1520/G0111-97R13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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G111 − 97 (2013)
3.2.2 high temperature—temperatures above ambient labo- 6.2.1 The term effectively non-reactive shall mean that the
ratory temperature where sustained heating of the environment test cell shall be free of significant mass loss or localized
is required. corrosion, SCC or other embrittlement phenomena in the test
environment, not contaminate the test environment with cor
...
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