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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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. ASTM G 48 is a relatively severe test, but lack of definition in the standard can lead to variation of data.

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We follow a standard practice we have developed to minimize these variations and provide consistent v48-11. However, the G48 test is meant for ranking or qualification, and not as designed for determining a corrosion rate over time.


There are 6 Methods: A and B are for qualification of alloys to pitting and crevice corrosion at specific temperatures, C astk 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 one do you need?

There are several factors that can influence the selection of methods; we can help you with this part of the process as well. The available pitting and crevice testing methods include:. Method B — Ferric chloride crevice test.

Method C — Critical pitting temperature test for nickel-base and astk alloys. Method D — Critical crevice temperature test for nickel-base and chromium-bearing alloys.

Testing by ASTM G48 for Pitting and Crevice Corrosion

Method E — Critical pitting temperature test for stainless steels. Method F — Critical crevice temperature test for stainless steels.

Our lab offers all 6 methods of this test as well as ASTM G, the electrochemical method for similar analysis. 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. Not sure what gg48-11 need? Contact our corrosion experts today!


Which test do I need? The available pitting and crevice testing methods include: Method A — Ferric chloride pitting test.

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