ASTM F519-08
(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 F 1459 and Test Method F 1624.
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 1.
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.
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Designation: F519 – 08
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 1.5.1 The loading conditions and pass/fail requirements for
service environments are specified in Annex A5.
1.1 This test method describes mechanical test methods and
1.5.2 If approved by the cognizant engineering authority, a
defines acceptance criteria for coating and plating processes
quantitative, accelerated (# 24 h) incremental step-load (ISL)
that can cause hydrogen embrittlement in steels. Subsequent
test as defined in Annex A3 may be used as an alternative to
exposure to chemicals encountered in service environments,
SLT.
such as fluids, cleaning treatments or maintenance chemicals
1.6 This test method is divided into two parts. The first part
that come in contact with the plated/coated or bare surface of
gives general information concerning requirements for hydro-
the steel, can also be evaluated.
gen embrittlement testing. The second is composed of annexes
1.2 This test method is not intended to measure the relative
that give specific requirements for the various loading and
susceptibility of different steels. The relative susceptibility of
specimen configurations covered by this test method (see
different materials to hydrogen embrittlement may be deter-
section 9.1 for a list of types) and the details for testing service
mined in accordance withTest Method F1459 andTest Method
environments.
F1624.
1.7 The values stated in the foot-pound-second (fps) system
1.3 This test method specifies the use of air melted AISI
in inch-pound units are to be regarded as standard. The values
E4340 steel per SAE AMS-S-5000 (formerly MIL-S-5000)
given in parentheses are mathematical conversions to SI units
heat treated to 260 – 280 ksi (pounds per square inch x 1000)
that are provided for information only and are not considered
as the baseline. This combination of alloy and heat treat level
standard.
has been used for many years and a large database has been
1.8 This standard does not purport to address all of the
accumulated in the aerospace industry on its specific response
safety concerns, if any, associated with its use. It is the
to exposure to a wide variety of maintenance chemicals, or
responsibility of the user of this standard to establish appro-
electroplated coatings, or both. Components with ultimate
priate safety and health practices and determine the applica-
strengths higher than 260 – 280 ksi may not be represented by
bility of regulatory limitations prior to use.
the baseline. In such cases, the cognizant engineering authority
shalldeterminetheneedformanufacturingspecimensfromthe
2. Referenced Documents
specific material and heat treat condition of the component.
2
2.1 ASTM Standards:
Deviations from the baseline shall be reported as required by
B374 Terminology Relating to Electroplating
section 12.1.2. The sensitivity to hydrogen embrittlement shall
B851 Specification forAutomated Controlled Shot Peening
be demonstrated for each lot of specimens as specified in
of Metallic Articles Prior to Nickel, Autocatalytic Nickel,
section 9.5.
or Chromium Plating, or as Final Finish
1.4 Test procedures and acceptance requirements are speci-
D1193 Specification for Reagent Water
fied for seven specimens of different sizes, geometries, and
E4 Practices for Force Verification of Testing Machines
loading configurations.
E8 Test Methods for Tension Testing of Metallic Materials
1.5 Pass/Fail Requirements—For plating/coating processes,
E18 Test Methods for Rockwell Hardness of Metallic Ma-
specimens must meet or exceed 200 h using a sustained load
terials
test (SLT) at the levels shown in Table 3.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
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
CurrenteditionapprovedMay1,2008.PublishedJuly2008.Originallyapproved
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
´2
in 1977. Last previous edition approved in 2006 as F519 – 06 . DOI: 10.1520/
Standards volume information, refer to the standard’s Document Summary page on
F0519-08.
the ASTM website.
Copyright © ASTM International, 100 B
...
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.
e2
Designation:F519–06 Designation: F 519 – 08
Standard Test Method for
Mechanical Hydrogen Embrittlement Evaluation of Plating/
1
Coating Processes and Service Environments
This standard is issued under the fixed designation F 519; 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 Department of Defense.
1
e NOTE—Some of the figures were reduced in size in March 2007.
2
e NOTE—Figure layout was improved in the Annexes in August 2007.
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
differentmaterialstohydrogenembrittlementmaybedeterminedinaccordancewithTestMethodF 1459andTestMethodF 1624.
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:
B 374 Terminology Relating to Electroplating
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 July 1, 2006. Published September 2006. Originally approved in 1977. Last previous edition approved in 2005 as F519–05.
´2
Current edition approved May 1, 2008. Published July 2008. Originally approved in 1977. Last previous edition approved in 2006 as F 519 – 06 .
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
...
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