Example of pitting after corrosion testing in accordance with ASTM G48 Method A . The test temperature of 22 °C is too aggressive for lean duplex grades such. Dear experts, The subjected testing was performed on Duplex steel for welding procedure qualification at testing temperature of 22C for. Test Specification: AS & ASTM Ec . FERRIC CHLORIDE CORROSION TEST – TEST METHOD A – ASTM G

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Don’t play mix and match with test conditions and procedures.

This test method is designed solely for detection of the precipitation of detrimental intermetallic phases in duplex stainless steels. It means that the recommendations are just that – Nothing less as well as Nothing more ,so I would appreciate it that you would NOT add words that clearly I did not write at all, because when you do so, you only start another round of confusion and mis-communication Methods C and D are for Ni-based, Cr-bearing alloys and define the test time at 72 hours.

Method E — Critical pitting temperature test for stainless steels. Rochester – Section I say like Socrates one of the greatest philosophers Human Kind has ever hadsaid: Crisi’s original letter to metrode with minor modifications to grammar etc! Rodofgod posted Metrode’s recommendations which backed up everything I have said and what is your response?


Contact our corrosion experts today! Methods A and B are designed to cause the breakdown of Type at room temperature. Why thank you Billy!!!

There is not one single test that will accomplish both. Just out of curiosity. Hi Syed, Passing G48A test is always a challenge to welding engineers.

I don’t know any end users who test for 72 hours. Nanjing, I have to separate my reply to you into two different parts.

G2MT Laboratories

Henry, remember you wrote this garbled nonsense right at the beginning of g48x first thread before I made any comment. This should indicate if you have any intermetallic phases present. You obviously have not visited the U. I cannot say whether this is common but gas composition and flow rate is in line welding downhand.

Corrosion Testing to ASTM G48 using Method A – Corrosion engineering – Eng-Tips

San Francisco – Section You’re a Her Gratious British Majesty’s subject, whereas I’m a citizen form a third world, underdeveloped country, and that makes a big difference For some reason or reasons they consider important, Nordic has introduced some changes into the original ASTM specification and they state clearly that their materials are tested according to that revised spec.


Results will be presented on variability of asrm corrosion testing from rubber h48a type, crevice former geometry, and surface roughness.

No matter what, the stake wont go down Prof Crisi Aetm, when I said: Could any one explain the potential reasons for the failure and moreover what countermeasures shall be considered to avoid repeated failure? Which one do you need?

Nebraska – Section Had you encountered a specific problem or were you just looking for general information.

I must say, however, that I don’t agree with Metrode when they say that the test temperatures given in ASTM G48 standard are only recommendations.

The testing temperature will be selected based on the material that is under test.

ASTM G48 Method A-Corrosive Testing #4

You should ignore any edge corrosion If xstm fail then they were not annealed correctly. It is people like you that are bringing Brazil to prominence in the world. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.