ASTM F 519 : 2023
Current
The latest, up-to-date edition.
Standard Test Method for Mechanical Hydrogen Embrittlement Evaluation of Plating/Coating Processes and Service Environments
Hardcopy , PDF
English
21-02-2024
Committee |
F 07
|
DocumentType |
Test Method
|
Pages |
21
|
PublisherName |
American Society for Testing and Materials
|
Status |
Current
|
Supersedes |
1.1This 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.
1.2This 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.
1.3This 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.
1.4Test procedures and acceptance requirements are specified for seven specimens of different sizes, geometries, and loading configurations.
1.5Pass/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.
1.5.1The loading conditions and pass/fail requirements for service environments are specified in Annex A5.
1.5.2If 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.
1.6This 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.
1.7The 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.
1.8This 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.
1.9This 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.
SAE AMS2404K:2024 | Plating, Electroless Nickel-Phosphorous |
ASTM B 607 : 2021 | Standard Specification for Autocatalytic Nickel Boron Coatings for Engineering Use |
ASTM B 700 : 2020 | Standard Specification for Electrodeposited Coatings of Silver for Engineering Use |
ASTM D 6361/D6361M : 1998 : R2020 | Standard Guide for Selecting Cleaning Agents and Processes |
ASTM A 1093/A1093M : 2015 : R2020 : EDT 1 | Standard Specification for Electrolytic Plasma Treatment Processing of Conductive Materials |
ASTM B 733 : 2022 | Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal |
ASTM B 999 : 2015 : R2022 | Standard Specification for Titanium and Titanium Alloys Plating, Electrodeposited Coatings of Titanium and Titanium Alloys on Conductive and Non-Conductive Substrate |
ASTM F 1941/F1941M : 2016 | Standard Specification for Electrodeposited Coatings on Mechanical Fasteners, Inch and Metric |
ASTM F 1940 : 2007 : REV A : R2019 | Standard Test Method for Process Control Verification to Prevent Hydrogen Embrittlement in Plated or Coated Fasteners |
ASTM B 177/B177M : 2011 : R2021 | Standard Guide for Engineering Chromium Electroplating |
ASTM F 1113 : 1987 : R2017 | Standard Test Method for Electrochemical Measurement of Diffusible Hydrogen in Steels (Barnacle Electrode) |
ASTM F 3111 : 2016 | Standard Specification for Heavy Hex Structural Bolt/Nut/Washer Assemblies, Alloy Steel, Heat Treated, 200 ksi Minimum Tensile Strength |
ASTM B 689 : 1997 : R2023 | Standard Specification for Electroplated Engineering Nickel Coatings |
ASTM F 326 : 2023 | Standard Test Method for Electronic Measurement for Hydrogen Embrittlement From Cadmium-Electroplating Processes |
ASTM F 1624 : 2012 : R2018 | Standard Test Method for Measurement of Hydrogen Embrittlement Threshold in Steel by the Incremental Step Loading Technique |
ASTM B 699 : 1986 : R2021 : EDT 1 | Standard Specification for Coatings of Cadmium Vacuum-Deposited on Iron and Steel |
ASTM B 734 : 1997 : R2023 | Standard Specification for Electrodeposited Copper for Engineering Uses |
ASTM B 994/B994M : 2022 | Standard Specification for Nickel-Cobalt Alloy Coating |
ASTM F 2660 : 2020 | Standard Test Method for Qualifying Coatings for Use on F3125 Grade A490 Structural Bolts Relative to Environmental Hydrogen Embrittlement |
ASTM B 766 : 2023 | Standard Specification for Electrodeposited Coatings of Cadmium |
ASTM F 3043 : 2015 | Standard Specification for “Twist Off” Type Tension Control Structural Bolt/Nut/Washer Assemblies, Alloy Steel, Heat Treated, 200 ksi Minimum Tensile Strength |
ASTM E 1823 : 2024 | Standard Terminology Relating to Fatigue and Fracture Testing |
ASTM E 18 : 2024 | Standard Test Methods for Rockwell Hardness of Metallic Materials |
ASTM E 8/E8M : 2024 | Standard Test Methods for Tension Testing of Metallic Materials |
ASTM E 292 : 2018 | Standard Test Methods for Conducting Time-for-Rupture Notch Tension Tests of Materials |
ASTM E 1823 : 2024 : REV A | Standard Terminology Relating to Fatigue and Fracture Testing |
ASTM E 18 : 2022 | Standard Test Methods for Rockwell Hardness of Metallic Materials |
ASTM E 1823 : 2024 : REV B | Standard Terminology Relating to Fatigue and Fracture Testing |
ASTM E 8/E8M : 2022 | Standard Test Methods for Tension Testing of Metallic Materials |
ASTM E 292 : 2024 | Standard Test Methods for Conducting Time-for-Rupture Notch Tension Tests of Materials |
ASTM E 4 : 2021 | Standard Practices for Force Calibration and Verification of Testing Machines |
ASTM E 1823 : 2024 : REV C | Standard Terminology Relating to Fatigue and Fracture Testing |
ASTM E 1823 : 2023 | Standard Terminology Relating to Fatigue and Fracture Testing |
ASTM E 4 : 2024 | Standard Practices for Force Calibration and Verification of Testing Machines |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.