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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Methods A and B are designed to cause the breakdown of Type at room temperature. However, the G48 test is meant for ranking or qualification, and not as designed for determining a corrosion rate over time. A h air passivation after grinding or pickling is sufficient to minimize these differences 8.
Method F — Critical crevice temperature test for stainless steels. NOK 1 ,00 excl. Our lab offers all 6 methods of this test as well as ASTM G, the electrochemical method for similar analysis. No statement can be made about resistance of g48-1 in environments that do not contain chlorides. ASTM G 48 is a relatively severe test, but lack of definition in the standard can lead to variation of data. If zstm need to be able to add standards to the monitoring service, you must register as a user with your own username and password.
Method D — Critical crevice temperature test for nickel-base and chromium-bearing alloys. Consequently, the degree of corrosion damage that occurs during testing will generally be greater than that in natural environments in any similar time period.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and satm the applicability of regulatory limitations prior to use. When using stainless and duplex steels, ASTM G48 is widely used to ensure the quality of the material and resistance to pitting and crevice corrosion.
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.
Which one do you need? When testing as-welded, cylindrical, or other non-flat samples, the standard crevice formers will not provide uniform contact. Methods C, D, E and 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. Read more about subscriptions.
We follow a standard practice we have developed g481-1 minimize these variations and provide consistent data. 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: 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.
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Historical Version s – view previous versions of standard. The available pitting and crevice testing methods include:. A and B are for qualification of alloys to 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 asym stainless alloys.
Other units are given in parentheses for information only. A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition. The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted g4-11 email.
Method B — Ferric chloride crevice test. Start Webshop Product catalog Product presentation.
Testing by ASTM G48 for Pitting and Crevice Corrosion
Method E — Critical pitting temperature test for stainless steels. There are several asm that can influence the selection of methods; we can help you with this part of the process as well. The benefits of a subscription: 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. 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.
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.
This ensures that you are always up-to-date and saves you both time and money. In many ways, G is ideal for use instead of asym C-F as it is a more rapid method that can be performed within days instead of weeks. Share on Tumblr Print.
You need to log in before adding standards to the monitoring service. Please share this page: Link to Active This link will always route to the current Active version of the standard. Grinding or pickling on stainless steel surfaces may destroy the passive layer. Webprint Printed and bound. Method C — Critical pitting temperature test for nickel-base and chromium-bearing alloys.
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Method A — Ferric chloride pitting test. Not sure what you need? Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.