Originally the ASTM website. 3 approved in Last previous edition approved in as G48– DOI: The last approved version of this historical standard. Buy ASTM G R TEST METHODS FOR PITTING AND CREVICE CORROSION RESISTANCE OF STAINLESS STEELS AND. The ASTM GA test (ferric chloride test) is widely used for pre-qualification of corrosion . The ASTM G for determining the CPT of stainless steel at fixed .
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Subscription – always available and updated A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition.
However, the G48 test is meant for ranking or qualification, and not as designed for determining a corrosion rate over time. Monitoring Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work. Webprint Printed and bound.
If you need to be able to add standards to the monitoring service, you must register as a user with your own username and password. Method A — Ferric chloride pitting test. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory f48-11 prior to use. In many ways, G is ideal for use instead of methods C-F as it is a more rapid method that can be performed within days instead of weeks.
Method F — Critical crevice temperature test for stainless steels. The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email.
A and B are for qualification of alloys aetm pitting and crevice corrosion at specific temperatures, C and D are for determining the critical pitting and crevice corrosion temperatures of chromium and nickel alloys, and E and F are for stainless alloys. Which test do I need? You need to log in before g4811 standards to the monitoring service.
Share on Tumblr Print. This service is not available if you are a URL user where you do not log in with an email address. This ensures that you are always up-to-date and saves you both time and money. Method C — Critical pitting temperature test g481-1 nickel-base and chromium-bearing alloys.
Not sure what you need? Method D — Critical crevice temperature test for nickel-base and chromium-bearing alloys. Methods C, D, E gg48-11 F allow for a ranking of alloys by minimum critical temperature to cause initiation of pitting corrosion and crevice corrosion, respectively, of stainless steels, nickel-base and chromium-bearing alloys in a standard ferric chloride solution.
Method E — Critical pitting temperature test for stainless steels.
The available pitting and crevice testing methods include: Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work. Historical Version s – view previous versions astk standard. Consequently, the degree of corrosion damage that occurs during testing will generally be greater than that in natural environments in any similar time period.
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A h air passivation g4-811 grinding or pickling is sufficient to minimize these differences 8. Which one do you need? ASTM G 48 is a relatively severe test, but lack of definition in the standard can lead to variation of data.
Method B — Ferric chloride crevice test. Our lab offers all 6 methods of this test as well as ASTM G, the electrochemical method for similar analysis.
Testing by ASTM G48 for Pitting and Crevice Corrosion
Start Webshop Product catalog Product presentation. The results may be used for ranking alloys in order of increasing resistance to pitting and crevice corrosion initiation under the specific conditions of these methods. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The benefits of a subscription: Methods A and B are designed to cause the breakdown astmm Type at room temperature.
ASTM G48 – 11(2015)
The use of contoured crevice formers may be considered in such situations, but the use of a pitting test Practices A, C, or E should be considered. Therefore, grinding and pickling of the specimen will mean that the results may not be representative of the conditions of the actual piece from which the sample was taken. There are 6 Methods: Link to Active This link will always route to the current Active version of the standard.
We follow a standard practice we have developed to minimize these variations and provide consistent data. When testing as-welded, cylindrical, or other non-flat samples, the standard crevice formers will not provide uniform contact. The available pitting and crevice testing methods include:. Like what you saw? There are several factors that can influence the selection of methods; we can help you with this part of the process as well.
No statement can be made about resistance of alloys in environments that do not contain chlorides. Other units are given in parentheses for information only.