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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The available pitting and crevice testing methods include: Start Webshop Product catalog Product presentation.

Historical Version s – view previous versions of standard. 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 g48-1 use.

ASTM G 48 is a relatively severe test, but lack of definition in the standard can lead to variation of data. There are several factors that can influence the selection of methods; we can help you with this part of the process as well. This service is not available if you are a URL user where you do not log in with an email address.

There are 6 Methods: We follow a standard practice we have developed to minimize these variations and provide consistent data. When using g8-11 and duplex steels, ASTM G48 is widely used to ensure the quality of the material and resistance to pitting and crevice corrosion. 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.

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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.

However, the G48 test is meant for ranking or qualification, and not as designed for determining a corrosion rate over time. 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.

Consequently, the degree of corrosion damage that occurs during testing will generally be greater than that in natural environments in any similar time period. Method E — Critical pitting temperature test for stainless steels.

Testing by ASTM G48 for Pitting and Crevice Corrosion

Method C — Critical pitting temperature test for nickel-base and chromium-bearing alloys. Which test do I need? Our lab offers all 6 methods of this test as well as ASTM G, the electrochemical method for similar analysis.

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. This ensures that you are always up-to-date and saves you both time and money. Other units are given in parentheses for information only. Grinding or pickling on stainless steel surfaces may destroy the passive layer. Methods C, D, Asgm 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 aetm a standard ferric chloride solution.

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Method A — Ferric chloride pitting test.

Method F — Critical crevice temperature test for stainless steels. A h air passivation after grinding or pickling is sufficient to minimize these differences 8.

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. Method G48–11 — Ferric chloride crevice test. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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.

ASTM G48 – 11(2015)

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