ASTM F2660-13
(Test Method)Standard Test Method for Qualifying Coatings for Use on A490 Structural Bolts Relative to Environmental Hydrogen Embrittlement
Standard Test Method for Qualifying Coatings for Use on 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 A490 high strength structural bolts made of any steel composition permitted by the A490 specification. 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 A490 high strength structural bolt.
1.2 This test method shall qualify a coating system for use with any size of 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 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: F2660 − 13
Standard Test Method for
Qualifying Coatings for Use on A490 Structural Bolts
1
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 E8/E8M Test Methods for Tension Testing of Metallic Ma-
terials
1.1 This test method defines the procedures and tests to
F519 Test Method for Mechanical Hydrogen Embrittlement
evaluate the effect of a coating system on the susceptibility to
Evaluation of Plating/Coating Processes and Service En-
environmental hydrogen embrittlement (EHE) of an ASTM
vironments
A490 high strength structural bolt.
F606 Test Methods for Determining the Mechanical Proper-
1.2 This test method shall qualify a coating system for use
ties of Externally and Internally Threaded Fasteners,
1 1
withanysizeofA490bolts(thatis, ⁄2to1- ⁄2in.)highstrength
Washers, Direct Tension Indicators, and Rivets
structural bolts, relative to EHE.
F1624 Test Method for Measurement of Hydrogen Em-
brittlement Threshold in Steel by the Incremental Step
1.3 The characteristic to be evaluated by this test method is
the susceptibility to EHE caused by hydrogen generated from Loading Technique
F1789 Terminology for F16 Mechanical Fasteners
corrosion protection of the steel bolt by sacrificial galvanic
corrosion of the coating. Testing shall be performed on coated, F2078 Terminology Relating to Hydrogen Embrittlement
Testing
specimen ASTM A490 bolts manufactured to the maximum
susceptible tensile strength values (see Table 1) of the bolt (see G3 Practice for Conventions Applicable to Electrochemical
Measurements in Corrosion Testing
Section 5 Specimen Bolt Requirements). The internal hydro-
gen embrittlement (IHE) susceptibility will also be inherently G15 Terminology Relating to Corrosion and CorrosionTest-
3
ing (Withdrawn 2010)
evaluated when the EHE is tested through this test method.
There is no need for a separate IHE susceptibility test. G44 PracticeforExposureofMetalsandAlloysbyAlternate
Immersion in Neutral 3.5 % Sodium Chloride Solution
1.4 The values stated in inch-pound units are to be regarded
G82 Guide for Development and Use of a Galvanic Series
as standard. No other units of measurement are included in this
for Predicting Galvanic Corrosion Performance
standard.
2.2 Research Council on Structural Connections:
1.5 This standard does not purport to address all of the
Specification for Structural Joints Using High Strength Bolts
safety concerns, if any, associated with its use. It is the
(LRFD) Load and Resistance Factor Design
responsibility of the user of this standard to establish appro-
Specification for Structural Joints Using High Strength Bolts
priate safety and health practices and determine the applica-
(ASD) Allowable Stress Design
bility of regulatory limitations prior to use.
2.3 Other References:
Townsend Jr., H. E., Met Trans, V6A, April, 1976
2. Referenced Documents
Raymond, L., The Susceptibility of Fasteners to Hydrogen
2
Embrittlement and Stress Corrosion Cracking: Fastener
2.1 ASTM Standards:
System Design. In J. H. Bickford, & S. Nassar, Handbook
A490 Specification for Structural Bolts, Alloy Steel, Heat
of Bolts and Bolted Joints, New York, USA: Marcel
Treated, 150 ksi Minimum Tensile Strength
E4 Practices for Force Verification of Testing Machines Dekker, Inc., 1998, pp. 723-756
2.4 International Standards Organization (ISO):
ISO 17025 General Requirements for the Competence of
Testing and Calibration Laboratories
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.
3. Terminology
Current edition approved Nov. 1, 2013. Published December 2013. Originally
approved in 2012 as F2660–12. DOI: 10.1520/F2660–13.
3.1 Definitions:
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
3
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
1
---------------------- Page: 1 ----------------------
F2660 − 13
TABLE 1 Specimen Bolt Sizes and Wedge Tensile Load Values
5.2 Coatings:
Tensile 5.2.1 The coating to be evaluated shall be applied to all
Nominal Minimum Wedge Tensile
Stress
specimen bolts under normal production conditions.
Size L
...
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 − 12 F2660 − 13
Standard Test Method for
Qualifying Coatings for Use on A490 Structural Bolts
1
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 A490 high strength structural bolt.
1 1
1.2 This test method shall qualify a coating system for use with any size of 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 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
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
F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, 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
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
2.2 Research Council on Structural Connections:
Specification for Structural Joints Using High Strength Bolts (LRFD) Load and Resistance Factor Design
Specification for Structural Joints Using High Strength Bolts (ASD) Allowable Stress Design
2.3 Other References:
Townsend Jr., H. E., Met Trans, V6A, April, 1976
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 Sept. 1, 2012Nov. 1, 2013. Published November 2012December 2013. Originally approved in 2012 as F2660–12. DOI: 10.1520/
F2660–12.10.1520/F2660–13.
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 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, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F2660 − 13
TABLE 1 Specimen Bolt Sizes and Wedge Tensile Load Values
Tensile
Nominal Minimum Wedge Tensile
Stress
Size Length Load
Area
As Min. Max.
(D) (in.)
2
(in. ) (lb) (lb)
1/2-13 1-1/2 0.1419 25,600 27,600
3/4-10 2-1/2 0.3345 59,000 63,000
1-8 5 0.6057 103,000 107,000
Raymond, L., The Susceptibility of Fasteners to
...
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