ASTM G48-11 PDF
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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Method C — Critical pitting temperature test for nickel-base asfm chromium-bearing alloys. A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are g84-11 provided as part of the standard.
Which one do you need? Not g8-11 what you need? No statement can be made about resistance of alloys in environments that do not contain chlorides. 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. NOK 1 ,00 excl. Like what you saw?
The moment aetm editions of the standards you monitor are released, changes are made, asstm appendixes are published, you will be alerted by email. 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. We follow a standard practice we have developed to minimize these variations and provide consistent data. 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.
Method D — Critical crevice temperature test for nickel-base and chromium-bearing alloys. However, the G4811 test is meant for ranking or qualification, and not as designed for determining a corrosion rate over time. Other units are given in parentheses for information only. 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
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. Share on Tumblr Print. There are 6 Methods: Method B — Ferric chloride crevice test. 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 for stainless alloys.
Link to Active This link will always route to the current Active version of the standard. A h air passivation after grinding or pickling is sufficient to minimize these differences 8.
Please share this page: This service is not available if you are a URL user where you do not log in with an email address. Historical Version s – view previous versions of standard. It is the responsibility of the user of this standard to establish appropriate satm and health practices and determine the applicability of regulatory limitations prior to use.
When testing as-welded, cylindrical, or other non-flat samples, the standard crevice formers will not atsm uniform contact. In many ways, G is ideal for use instead of methods C-F as it is a more rapid method that can be performed astn days instead of weeks.
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.
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. There are several factors that can influence the selection of methods; we can help you with this part of the process as well.
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.
Method E — Critical pitting temperature test for stainless steels. Methods A and B g48-111 designed to cause the breakdown of Type at room temperature. Method F — Critical crevice temperature test for stainless steels. Read more about subscriptions. This ensures that you are always up-to-date and saves you both time and money.
Consequently, the degree of corrosion damage that occurs during testing will generally be greater than that in natural environments in any similar time period. Which test do I need? Method A — Ferric chloride pitting test. Webprint Printed and bound.
ASTM G 48 is a relatively severe test, but lack of definition in the standard can lead to variation of data. The available pitting and crevice testing methods include: Grinding or pickling on stainless steel surfaces may destroy the passive layer. 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.