ASTM F2660-20

Standard Test Method for Qualifying Coatings for Use on F3125 Grade A490 Structural Bolts Relative to Environmental Hydrogen Embrittlement

SIGNIFICANCE AND USE
4.1 This test method describes the testing procedure that shall be used to qualify a coating system that is under consideration for use on ASTM F3125 Grade A490 high strength structural bolts made of any steel composition permitted by the F3125 specification for Grade A490 bolts. The test method measures the susceptibility of coated specimen bolts to the influence of an externally applied potential (see 7.2.3.3) by testing for the threshold of embrittlement in a salt solution environment.
SCOPE
1.1 This test method defines the procedures and tests to evaluate the effect of a coating system on the susceptibility to environmental hydrogen embrittlement (EHE) of an ASTM F3125 Grade A490 high strength structural bolt.  
1.2 This test method shall qualify a coating system for use with any size of F3125 Grade A490 bolts (that is, 1/2 to 1-1/2 in.) high strength structural bolts, relative to EHE.  
1.3 The characteristic to be evaluated by this test method is the susceptibility to EHE caused by hydrogen generated from corrosion protection of the steel bolt by sacrificial galvanic corrosion of the coating. Testing shall be performed on coated, specimen ASTM F3125 Grade A490 bolts manufactured to the maximum susceptible tensile strength values (see Table 1) of the bolt (see Section 5 Specimen Bolt Requirements). The internal hydrogen embrittlement (IHE) susceptibility will also be inherently evaluated when the EHE is tested through this test method. There is no need for a separate IHE susceptibility test.  
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Mar-2020
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.01 - Test Methods

Relations

• Referred By: ASTM F3125/F3125M-22 - Standard Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions 120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength
• Effective Date: 01-Apr-2020

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F2660 − 20
Standard Test Method for
Qualifying Coatings for Use on F3125 Grade A490 Structural
1
Bolts Relative to Environmental Hydrogen Embrittlement
This standard is issued under the fixed designation F2660; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method defines the procedures and tests to
E4 Practices for Force Verification of Testing Machines
evaluate the effect of a coating system on the susceptibility to
E8/E8M Test Methods for Tension Testing of Metallic Ma-
environmental hydrogen embrittlement (EHE) of an ASTM
terials
F3125 Grade A490 high strength structural bolt.
F519 Test Method for Mechanical Hydrogen Embrittlement
1.2 This test method shall qualify a coating system for use
Evaluation of Plating/Coating Processes and Service En-
1 1
withanysizeofF3125GradeA490bolts(thatis, ⁄2to1- ⁄2in.)
vironments
high strength structural bolts, relative to EHE.
F606/F606M Test Methods for Determining the Mechanical
Properties of Externally and Internally Threaded
1.3 The characteristic to be evaluated by this test method is
Fasteners, Washers, Direct Tension Indicators, and Rivets
the susceptibility to EHE caused by hydrogen generated from
F1624 Test Method for Measurement of Hydrogen Em-
corrosion protection of the steel bolt by sacrificial galvanic
brittlement Threshold in Steel by the Incremental Step
corrosion of the coating. Testing shall be performed on coated,
Loading Technique
specimenASTM F3125 Grade A490 bolts manufactured to the
F1789 Terminology for F16 Mechanical Fasteners
maximum susceptible tensile strength values (see Table 1)of
F2078 Terminology Relating to Hydrogen Embrittlement
the bolt (see Section 5 Specimen Bolt Requirements). The
Testing
internal hydrogen embrittlement (IHE) susceptibility will also
F3125 Specification for High Strength Structural Bolts and
be inherently evaluated when the EHE is tested through this
Assemblies, Steel and Alloy Steel, Heat Treated, Inch
test method. There is no need for a separate IHE susceptibility
Dimensions 120 ksi and 150 ksi Minimum Tensile
test.
Strength, and Metric Dimensions 830 MPa and 1040 MPa
Minimum Tensile Strength
1.4 The values stated in inch-pound units are to be regarded
G3 Practice for Conventions Applicable to Electrochemical
as standard. No other units of measurement are included in this
Measurements in Corrosion Testing
standard.
G15 Terminology Relating to Corrosion and CorrosionTest-
3
1.5 This standard does not purport to address all of the
ing (Withdrawn 2010)
safety concerns, if any, associated with its use. It is the
G44 PracticeforExposureofMetalsandAlloysbyAlternate
responsibility of the user of this standard to establish appro-
Immersion in Neutral 3.5 % Sodium Chloride Solution
priate safety, health, and environmental practices and deter-
G82 Guide for Development and Use of a Galvanic Series
mine the applicability of regulatory limitations prior to use.
for Predicting Galvanic Corrosion Performance
1.6 This international standard was developed in accor-
2.2 Research Council on Structural Connections:
dance with internationally recognized principles on standard-
Specification for Structural Joints Using High Strength Bolts
ization established in the Decision on Principles for the
(LRFD) Load and Resistance Factor Design
Development of International Standards, Guides and Recom-
Specification for Structural Joints Using High Strength Bolts
mendations issued by the World Trade Organization Technical
(ASD) Allowable Stress Design
Barriers to Trade (TBT) Committee.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee F16 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Fasteners and is the direct responsibility of Subcommittee F16.01 on Test Methods. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved April 1, 2020. Published April 2020. Originally the ASTM website.
3
approved in 2012. Last previous edition approved in 2013 as F2660–13. DOI: The last approved version of this historical standard is referenced on
10.1520/F2660–20. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F2660 −
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2660 − 13 F2660 − 20
Standard Test Method for
Qualifying Coatings for Use on F3125 Grade A490 Structural
1
Bolts Relative to Environmental Hydrogen Embrittlement
This standard is issued under the fixed designation F2660; 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
1.1 This test method defines the procedures and tests to evaluate the effect of a coating system on the susceptibility to
environmental hydrogen embrittlement (EHE) of an ASTM A490F3125 Grade A490 high strength structural bolt.
1 1
1.2 This test method shall qualify a coating system for use with any size of A490F3125 Grade A490 bolts (that is, ⁄2 to 1- ⁄2
in.) high strength structural bolts, relative to EHE.
1.3 The characteristic to be evaluated by this test method is the susceptibility to EHE caused by hydrogen generated from
corrosion protection of the steel bolt by sacrificial galvanic corrosion of the coating. Testing shall be performed on coated,
specimen ASTM A490F3125 Grade A490 bolts manufactured to the maximum susceptible tensile strength values (see Table 1)
of the bolt (see Section 5 Specimen Bolt Requirements). The internal hydrogen embrittlement (IHE) susceptibility will also be
inherently evaluated when the EHE is tested through this test method. There is no need for a separate IHE susceptibility test.
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
3
A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength (Withdrawn 2016)
E4 Practices for Force Verification of Testing Machines
E8/E8M Test Methods for Tension Testing of Metallic Materials
F519 Test Method for Mechanical Hydrogen Embrittlement Evaluation of Plating/Coating Processes and Service Environments
F606F606/F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners,
Washers, and Rivets (Metric) F0606_F0606M Direct Tension Indicators, and Rivets
F1624 Test Method for Measurement of Hydrogen Embrittlement Threshold in Steel by the Incremental Step Loading Technique
F1789 Terminology for F16 Mechanical Fasteners
F2078 Terminology Relating to Hydrogen Embrittlement Testing
F3125 Specification for High Strength Structural Bolts and Assemblies, Steel and Alloy Steel, Heat Treated, Inch Dimensions
120 ksi and 150 ksi Minimum Tensile Strength, and Metric Dimensions 830 MPa and 1040 MPa Minimum Tensile Strength
G3 Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing
3
G15 Terminology Relating to Corrosion and Corrosion Testing (Withdrawn 2010)
G44 Practice for Exposure of Metals and Alloys by Alternate Immersion in Neutral 3.5 % Sodium Chloride Solution
G82 Guide for Development and Use of a Galvanic Series for Predicting Galvanic Corrosion Performance
1
This test method is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.01 on Test Methods.
Current edition approved Nov. 1, 2013April 1, 2020. Published December 2013April 2020. Originally approved in 2012 2012. Last previous edition approved in 2013
as F2660–12.–13. DOI: 10.1520/F2660–13.10.1520/F2660–20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive,
...