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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It is the responsibility of the user of this standard to establish appropriate safety g4-11 health practices and determine the applicability of regulatory limitations prior to use.

Historical Version s – view previous versions of standard. Method C — Critical pitting temperature test for nickel-base and chromium-bearing alloys. Like what you saw? Please share this page: Method F — Critical crevice temperature test for stainless steels. This ensures that you are always up-to-date and saves you both time and money. 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.

Testing by ASTM G48 for Pitting and Crevice Corrosion

No statement can be made about resistance of alloys in environments that do not contain chlorides. Methods A and B are designed to cause the breakdown of Type at room temperature. 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. Method A — Ferric chloride pitting test.


ASTM G 48 is a relatively severe test, but lack of definition in the standard can lead to variation of data. Grinding or pickling on stainless steel surfaces may destroy the passive layer.

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.

Which test do I need?

G2MT Laboratories

NOK 1 ,00 excl. Consequently, the degree of corrosion damage that occurs during testing will generally be greater than that in natural environments in any similar time period. Our lab offers all 6 methods of this test as well as ASTM G, the g48-111 method for similar analysis. The available pitting and crevice testing methods include:.

Monitoring Standards monitoring is a free service designed for you who wish to asgm alerted of changes to or new editions of the standards required in your work. Webprint Printed and bound. 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: Method B — Ferric chloride crevice test. A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition. 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.


A h air passivation after grinding or qstm is sufficient to minimize these differences 8. 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.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. We follow a standard practice we have developed to minimize these variations and provide consistent data.

The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email. Link to H48-11 This link will always route to the current Active version of the standard.

The benefits of a subscription: 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 several factors that can influence the selection of methods; we can help you with this g48–11 of the process as well.