ASTM F519-12
(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
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.
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 AISI E4340 steel per SAE AMS-S-5000 (formerly MIL-S-5000) heat treated to 260 – 280 ksi (pounds per square inch x 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 – 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 section 12.1.2. The sensitivity to hydrogen embrittlement shall be demonstrated for each lot of specimens as specified in section 9.5.
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.
1.8 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.
TABLE 1 Lot Acceptance Criteria for Notched Specimens TypeItemSampling of
Each LotRequirement/Method ...
General Information
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Designation: F519 − 12
StandardTest Method for
Mechanical Hydrogen Embrittlement Evaluation of Plating/
1
Coating Processes and Service Environments
ThisstandardisissuedunderthefixeddesignationF519;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 1.5 Pass/Fail Requirements—For plating/coating processes,
specimens must meet or exceed 200 h using a sustained load
1.1 This test method describes mechanical test methods and
test (SLT) at the levels shown in Table 3.
defines acceptance criteria for coating and plating processes
1.5.1 The loading conditions and pass/fail requirements for
that can cause hydrogen embrittlement in steels. Subsequent
service environments are specified in Annex A5.
exposure to chemicals encountered in service environments,
1.5.2 If approved by the cognizant engineering authority, a
such as fluids, cleaning treatments or maintenance chemicals
quantitative, accelerated (≤ 24 h) incremental step-load (ISL)
that come in contact with the plated/coated or bare surface of
test as defined in Annex A3 may be used as an alternative to
the steel, can also be evaluated.
SLT.
1.2 This test method is not intended to measure the relative
1.6 This test method is divided into two parts. The first part
susceptibility of different steels. The relative susceptibility of
gives general information concerning requirements for hydro-
different materials to hydrogen embrittlement may be deter-
gen embrittlement testing. The second is composed of annexes
mined in accordance withTest Method F1459 andTest Method
that give specific requirements for the various loading and
F1624.
specimen configurations covered by this test method (see
section 9.1 for a list of types) and the details for testing service
1.3 This test method specifies the use of air melted AISI
environments.
E4340 steel per SAE AMS-S-5000 (formerly MIL-S-5000)
heat treated to 260 – 280 ksi (pounds per square inch x 1000) 1.7 The values stated in the foot-pound-second (fps) system
as the baseline. This combination of alloy and heat treat level in inch-pound units are to be regarded as standard. The values
has been used for many years and a large database has been given in parentheses are mathematical conversions to SI units
accumulated in the aerospace industry on its specific response that are provided for information only and are not considered
standard.
to exposure to a wide variety of maintenance chemicals, or
electroplated coatings, or both. Components with ultimate
1.8 This standard does not purport to address all of the
strengths higher than 260 – 280 ksi may not be represented by
safety concerns, if any, associated with its use. It is the
the baseline. In such cases, the cognizant engineering authority
responsibility of the user of this standard to establish appro-
shalldeterminetheneedformanufacturingspecimensfromthe
priate safety and health practices and determine the applica-
specific material and heat treat condition of the component.
bility of regulatory limitations prior to use.
Deviations from the baseline shall be reported as required by
section 12.1.2. The sensitivity to hydrogen embrittlement shall
2. Referenced Documents
be demonstrated for each lot of specimens as specified in
2
2.1 ASTM Standards:
section 9.5.
B374 Terminology Relating to Electroplating
B851 Specification for Automated Controlled Shot Peening
1.4 Test procedures and acceptance requirements are speci-
of Metallic Articles Prior to Nickel, Autocatalytic Nickel,
fied for seven specimens of different sizes, geometries, and
or Chromium Plating, or as Final Finish
loading configurations.
D1193 Specification for Reagent Water
E4 Practices for Force Verification of Testing Machines
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
2
Hydrogen Embrittlement. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2012. Published September 2012. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1977. Last previous edition approved in 2010 as F519 – 10. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F0519-12. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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F519 − 12
E8 Test Methods for Tension Testing of Metallic Materials I
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:F519–10 Designation: F519 – 12
Standard Test Method for
Mechanical Hydrogen Embrittlement Evaluation of Plating/
1
Coating Processes and Service Environments
ThisstandardisissuedunderthefixeddesignationF519;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This test method describes mechanical test methods and defines acceptance criteria for coating and plating processes that
cancausehydrogenembrittlementinsteels.Subsequentexposuretochemicalsencounteredinserviceenvironments,suchasfluids,
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 ThistestmethodspecifiestheuseofairmeltedAISIE4340steelperSAEAMS-S-5000(formerlyMIL-S-5000)heattreated
to 260 – 280 ksi (pounds per square inch x 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 – 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 section 12.1.2. The sensitivity to hydrogen embrittlement shall be demonstrated for each lot of
specimens as specified in section 9.5.
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 Thevaluesstatedinthefoot-pound-second(fps)systemininch-poundunitsaretoberegardedasstandard.Thevaluesgiven
in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.8 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:
B374 Terminology Relating to Electroplating
B851 Specification for Automated Controlled Shot Peening of Metallic Articles Prior to Nickel, Autocatalytic Nickel, or
Chromium Plating, or as Final Finish
D1193 Specification for Reagent Water
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.June 1, 2010.2012. Published January 2011.September 2012. Originally approved in 1977. Last previous edition approved in 20082010 as
F519 – 108. DOI: 10.1520/F0519-102.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
Copyright © ASTM International
...
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