ASTM F519-18
(Test Method)Standard Test Method for Mechanical Hydrogen Embrittlement Evaluation of Plating/Coating Processes and Service Environments
Standard Test Method for Mechanical Hydrogen Embrittlement Evaluation of Plating/Coating Processes and Service Environments
SIGNIFICANCE AND USE
5.1 Plating/coating Processes—This test method provides a means by which to detect possible hydrogen embrittlement of steel parts during manufacture by verifying strict controls during production operations such as surface preparation, pretreatments, and plating/coating. It is also intended to be used as a qualification test for new plating/coating processes and as a periodic inspection audit for the control of a plating/coating process.
5.2 Service Environment—This test method provides a means by which to detect possible hydrogen embrittlement of steel parts (plated/coated or bare) due to contact with chemicals during manufacturing, overhaul and service life. The details of testing in a service environment are found in Annex A5.
SCOPE
1.1 This test method describes mechanical test methods and defines acceptance criteria for coating and plating processes that can cause hydrogen embrittlement in steels. Subsequent exposure to chemicals encountered in service environments, such as fluids, cleaning treatments or maintenance chemicals that come in contact with the plated/coated or bare surface of the steel, can also be evaluated.
1.2 This test method is not intended to measure the relative susceptibility of different steels. The relative susceptibility of different materials to hydrogen embrittlement may be determined in accordance with Test Method F1459 and Test Method F1624.
1.3 This test method specifies the use of air melted SAE 4340 steel (Grade A, see 7.1.1) per SAE AMS 6415 (formerly SAE AMS-S-5000 and formerly MIL-S-5000) or an alternative VAR (Vacuum Arc Remelt) SAE 4340 steel (Grade B, see 7.1.1) per SAE AMS 6414, and both are heat treated to 260 to 280 ksi (pounds per square inch ×1000) as the baseline. This combination of alloy and heat treat level has been used for many years and a large database has been accumulated in the aerospace industry on its specific response to exposure to a wide variety of maintenance chemicals, or electroplated coatings, or both. Components with ultimate strengths higher than 260 to 280 ksi may not be represented by the baseline. In such cases, the cognizant engineering authority shall determine the need for manufacturing specimens from the specific material and heat treat condition of the component. Deviations from the baseline shall be reported as required by 12.1.2. The sensitivity to hydrogen embrittlement shall be demonstrated for each lot of specimens as specified in 9.5.
Note 1: Extensive testing has shown that VAR 4340 steel may be used as an alternative to the air melted steel with no loss in sensitivity.2
Note 2: VAR 4340 also meets the requirements in AMS 6415 and could be used as an alternative to air melt steel by the steel suppliers because AMS 6415 does not specify a melting practice.
1.4 Test procedures and acceptance requirements are specified for seven specimens of different sizes, geometries, and loading configurations.
1.5 Pass/Fail Requirements—For plating/coating processes, specimens must meet or exceed 200 h using a sustained load test (SLT) at the levels shown in Table 3.
1.5.1 The loading conditions and pass/fail requirements for service environments are specified in Annex A5.
1.5.2 If approved by the cognizant engineering authority, a quantitative, accelerated (≤ 24 h) incremental step-load (ISL) test as defined in Annex A3 may be used as an alternative to SLT.
1.6 This test method is divided into two parts. The first part gives general information concerning requirements for hydrogen embrittlement testing. The second is composed of annexes that give specific requirements for the various loading and specimen configurations covered by this test method (see section 9.1 for a list of types) and the details for testing service environments.
1.7 The values stated in the foot-pound-second (fps) system in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical c...
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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: F519 − 18
Standard Test Method for
Mechanical Hydrogen Embrittlement Evaluation of Plating/
1
Coating Processes and Service Environments
ThisstandardisissuedunderthefixeddesignationF519;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
2
as an alternative to the air melted steel with no loss in sensitivity.
1. Scope
NOTE 2—VAR 4340 also meets the requirements in AMS 6415 and
1.1 This test method describes mechanical test methods and could be used as an alternative to air melt steel by the steel suppliers
because AMS 6415 does not specify a melting practice.
defines acceptance criteria for coating and plating processes
that can cause hydrogen embrittlement in steels. Subsequent
1.4 Test procedures and acceptance requirements are speci-
exposure to chemicals encountered in service environments,
fied for seven specimens of different sizes, geometries, and
such as fluids, cleaning treatments or maintenance chemicals
loading configurations.
that come in contact with the plated/coated or bare surface of
1.5 Pass/Fail Requirements—For plating/coating processes,
the steel, can also be evaluated.
specimens must meet or exceed 200 h using a sustained load
1.2 This test method is not intended to measure the relative test (SLT) at the levels shown in Table 3.
susceptibility of different steels. The relative susceptibility of
1.5.1 The loading conditions and pass/fail requirements for
different materials to hydrogen embrittlement may be deter- service environments are specified in Annex A5.
minedinaccordancewithTestMethodF1459andTestMethod
1.5.2 If approved by the cognizant engineering authority, a
F1624.
quantitative, accelerated (≤ 24 h) incremental step-load (ISL)
test as defined in Annex A3 may be used as an alternative to
1.3 This test method specifies the use of air melted SAE
SLT.
4340 steel (GradeA, see 7.1.1) per SAEAMS 6415 (formerly
1.6 This test method is divided into two parts.The first part
SAEAMS-S-5000andformerlyMIL-S-5000)oranalternative
gives general information concerning requirements for hydro-
VAR (Vacuum Arc Remelt) SAE 4340 steel (Grade B, see
gen embrittlement testing.The second is composed of annexes
7.1.1) per SAEAMS 6414, and both are heat treated to 260 to
that give specific requirements for the various loading and
280 ksi (pounds per square inch ×1000) as the baseline. This
specimen configurations covered by this test method (see
combination of alloy and heat treat level has been used for
section9.1foralistoftypes)andthedetailsfortestingservice
many years and a large database has been accumulated in the
environments.
aerospace industry on its specific response to exposure to a
wide variety of maintenance chemicals, or electroplated
1.7 The values stated in the foot-pound-second (fps) system
coatings, or both. Components with ultimate strengths higher
in inch-pound units are to be regarded as standard. The values
than 260 to 280 ksi may not be represented by the baseline. In
given in parentheses are mathematical conversions to SI units
suchcases,thecognizantengineeringauthorityshalldetermine
that are provided for information only and are not considered
the need for manufacturing specimens from the specific mate-
standard.
rialandheattreatconditionofthecomponent.Deviationsfrom
1.8 This standard does not purport to address all of the
the baseline shall be reported as required by 12.1.2. The
safety concerns, if any, associated with its use. It is the
sensitivitytohydrogenembrittlementshallbedemonstratedfor
responsibility of the user of this standard to establish appro-
each lot of specimens as specified in 9.5.
priate safety, health, and environmental practices and deter-
NOTE1—ExtensivetestinghasshownthatVAR4340steelmaybeused mine the applicability of regulatory limitations prior to use.
1 2
This test method is under the jurisdiction of ASTM Committee F07 on “Final Report - Design of Experiment Approach to Hydrogen Re-
Aerospace andAircraft and is the direct responsibility of Subcommittee F07.04 on Embrittlement Evaluation WP-2152”; S.M Grendahl, H. Nguyen, F. Kellogg, S.
Hydrogen Embrittlement. Zhu, S. Jones; Strategic Environmental Research and Development Program
Current edition approved Nov. 1, 2018. Published November 2018. Originally (SERDP); Project WP-2152; July 2015; https://www.serdp-estcp.org/Program-
approved in 1977. Last previous edition approved in 2017 as F519–17a.
...
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: F519 − 17a F519 − 18
Standard Test Method for
Mechanical Hydrogen Embrittlement Evaluation of Plating/
1
Coating Processes and Service Environments
This standard is issued under the fixed designation F519; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This test method describes mechanical test methods and defines acceptance criteria for coating and plating processes that
can cause hydrogen embrittlement in steels. Subsequent exposure to chemicals encountered in service environments, such as fluids,
cleaning treatments or maintenance chemicals that come in contact with the plated/coated or bare surface of the steel, can also be
evaluated.
1.2 This test method is not intended to measure the relative susceptibility of different steels. The relative susceptibility of
different materials to hydrogen embrittlement may be determined in accordance with Test Method F1459 and Test Method F1624.
1.3 This test method specifies the use of air melted SAE 4340 steel (Grade A, see 7.1.1) per SAE AMS 6415 (formerly SAE
AMS-S-5000 and formerly MIL-S-5000) or an alternative VAR (Vacuum Arc Remelt) SAE 4340 steel (Grade B, see 7.1.1) per
SAE AMS 6414, and both are heat treated to 260 to 280 ksi (pounds per square inch ×1000) as the baseline. This combination of
alloy and heat treat level has been used for many years and a large database has been accumulated in the aerospace industry on
its specific response to exposure to a wide variety of maintenance chemicals, or electroplated coatings, or both. Components with
ultimate strengths higher than 260 to 280 ksi may not be represented by the baseline. In such cases, the cognizant engineering
authority shall determine the need for manufacturing specimens from the specific material and heat treat condition of the
component. Deviations from the baseline shall be reported as required by 12.1.2. The sensitivity to hydrogen embrittlement shall
be demonstrated for each lot of specimens as specified in 9.5.
2
NOTE 1—Extensive testing has shown that VAR 4340 steel may be used as an alternative to the air melted steel with no loss in sensitivity.
NOTE 2—VAR 4340 also meets the requirements in AMS 6415 and could be used as an alternative to air melt steel by the steel suppliers because AMS
6415 does not specify a melting practice.
1.4 Test procedures and acceptance requirements are specified for seven specimens of different sizes, geometries, and loading
configurations.
1.5 Pass/Fail Requirements—For plating/coating processes, specimens must meet or exceed 200 h using a sustained load test
(SLT) at the levels shown in Table 3.
1.5.1 The loading conditions and pass/fail requirements for service environments are specified in Annex A5.
1.5.2 If approved by the cognizant engineering authority, a quantitative, accelerated (≤ 24 h) incremental step-load (ISL) test
as defined in Annex A3 may be used as an alternative to SLT.
1.6 This test method is divided into two parts. The first part gives general information concerning requirements for hydrogen
embrittlement testing. The second is composed of annexes that give specific requirements for the various loading and specimen
configurations covered by this test method (see section 9.1 for a list of types) and the details for testing service environments.
1.7 The values stated in the foot-pound-second (fps) system in inch-pound units are to be regarded as standard. The values given
in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1
This test method is under the jurisdiction of ASTM Committee F07 on Aerospace and Aircraft and is the direct responsibility of Subcommittee F07.04 on Hydrogen
Embrittlement.
Current edition approved Dec. 1, 2017Nov. 1, 2018. Published December 2017November 2018. Originally approved in 1977. Last previous edition approved in 2017 as
F519 – 17.F519 – 17a. DOI: 10.1520/F0519-17A.10.1520/F0519-18.
2
“Final Report - Design of Experiment Approach to Hydrogen Re-Embrittlement Evaluation WP-2152”; S.M Grendahl, H. Nguyen, F. Kellogg, S. Zhu, S. Jones; Strategic
Environmental Research and Development Program (SERDP); Project WP-2152; July 2015; https://www.serdp-estcp.org/Pr
...
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: F519 − 18
Standard Test Method for
Mechanical Hydrogen Embrittlement Evaluation of Plating/
1
Coating Processes and Service Environments
This standard is issued under the fixed designation F519; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
2
as an alternative to the air melted steel with no loss in sensitivity.
1. Scope
NOTE 2—VAR 4340 also meets the requirements in AMS 6415 and
1.1 This test method describes mechanical test methods and
could be used as an alternative to air melt steel by the steel suppliers
because AMS 6415 does not specify a melting practice.
defines acceptance criteria for coating and plating processes
that can cause hydrogen embrittlement in steels. Subsequent
1.4 Test procedures and acceptance requirements are speci-
exposure to chemicals encountered in service environments,
fied for seven specimens of different sizes, geometries, and
such as fluids, cleaning treatments or maintenance chemicals
loading configurations.
that come in contact with the plated/coated or bare surface of
1.5 Pass/Fail Requirements—For plating/coating processes,
the steel, can also be evaluated.
specimens must meet or exceed 200 h using a sustained load
1.2 This test method is not intended to measure the relative test (SLT) at the levels shown in Table 3.
susceptibility of different steels. The relative susceptibility of 1.5.1 The loading conditions and pass/fail requirements for
different materials to hydrogen embrittlement may be deter-
service environments are specified in Annex A5.
mined in accordance with Test Method F1459 and Test Method
1.5.2 If approved by the cognizant engineering authority, a
F1624.
quantitative, accelerated (≤ 24 h) incremental step-load (ISL)
test as defined in Annex A3 may be used as an alternative to
1.3 This test method specifies the use of air melted SAE
SLT.
4340 steel (Grade A, see 7.1.1) per SAE AMS 6415 (formerly
1.6 This test method is divided into two parts. The first part
SAE AMS-S-5000 and formerly MIL-S-5000) or an alternative
gives general information concerning requirements for hydro-
VAR (Vacuum Arc Remelt) SAE 4340 steel (Grade B, see
gen embrittlement testing. The second is composed of annexes
7.1.1) per SAE AMS 6414, and both are heat treated to 260 to
that give specific requirements for the various loading and
280 ksi (pounds per square inch ×1000) as the baseline. This
specimen configurations covered by this test method (see
combination of alloy and heat treat level has been used for
section 9.1 for a list of types) and the details for testing service
many years and a large database has been accumulated in the
environments.
aerospace industry on its specific response to exposure to a
wide variety of maintenance chemicals, or electroplated
1.7 The values stated in the foot-pound-second (fps) system
coatings, or both. Components with ultimate strengths higher
in inch-pound units are to be regarded as standard. The values
than 260 to 280 ksi may not be represented by the baseline. In
given in parentheses are mathematical conversions to SI units
such cases, the cognizant engineering authority shall determine
that are provided for information only and are not considered
the need for manufacturing specimens from the specific mate-
standard.
rial and heat treat condition of the component. Deviations from
1.8 This standard does not purport to address all of the
the baseline shall be reported as required by 12.1.2. The
safety concerns, if any, associated with its use. It is the
sensitivity to hydrogen embrittlement shall be demonstrated for
responsibility of the user of this standard to establish appro-
each lot of specimens as specified in 9.5.
priate safety, health, and environmental practices and deter-
NOTE 1—Extensive testing has shown that VAR 4340 steel may be used mine the applicability of regulatory limitations prior to use.
1 2
This test method is under the jurisdiction of ASTM Committee F07 on “Final Report - Design of Experiment Approach to Hydrogen Re-
Aerospace and Aircraft and is the direct responsibility of Subcommittee F07.04 on Embrittlement Evaluation WP-2152”; S.M Grendahl, H. Nguyen, F. Kellogg, S.
Hydrogen Embrittlement. Zhu, S. Jones; Strategic Environmental Research and Development Program
Current edition approved Nov. 1, 2018. Published November 2018. Originally (SERDP); Project WP-2152; July 2015; https://www.serdp-estcp.org/Program-
approved in 1977. Last previous edition approved in 2017 as F519 – 17a. DOI: Areas/Weapons-Systems-and
...
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