Fig. 2 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 . Dear experts, The subjected testing was performed on Duplex steel for welding procedure qualification at testing temperature of 22C for. ASTM G48 – Download as PDF File .pdf), Text File .txt) or read online. Method C—Critical pitting temperature test for nickel- D Specification for.
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This should indicate if you have any intermetallic phases present.
Puget Sound Olympic – Section Students Click Here Join Us! I think Henry owes me an apology. Click Here to join Eng-Tips and talk with other members!
A h air passivation after grinding or pickling is sufficient methodd minimize these differences 8. By jrw Date Nebraska – Astm g48 method a Then after cutting you should pickle the sample.
Dear experts, The subjected testing was performed on Duplex steel for welding procedure qualification at testing temperature of 22C for suggested time period of 72 hours as per Astm g48 method a G48 using Method A. The futures history books will reflect a much different book than the present’s history. Client is not accepting the results and require to perform the testing to G48 Method A for 72 hours. Joey, I’ve looked on the dictionary and didn’t find the word “underdog”.
If you need clarification as to what I am writing, all you have to do is ask, and I would astm g48 method a more than happy to follow up.
Historical Version s – view previous versions of standard. If alloy consistently fails at the above specified testing regime, assuming that metallurgical factors are not contributors then the ways to get around it on GA test would be: Happy New Year too All!
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Am I right by saying: I still think you do not see it. The testing temperature will be selected based on the material that is under test.
Locked and done with already!!! By CWI Date Here is another link showing the suggestions and findings of Norsok: Finally, when I said: Yet you still have this notion that I’ disagree with ytour conclusion and I do not understand why??? Where astm g48 method a cut a sample and grind the surfaces, no pickle or passivation allowed, and test in ferric chloride?
Please put it to better use than to imitate someone who clips talking points as if they were in some sort of psuedo-political campaign, astm g48 method a there are professionals who do that for a living The available pitting and crevice testing methods include:.
Henry, I would have accepted your “olive branch” if you had been man enough to admit your failings on this subject and I would astm g48 method a respected you for that. Perhaps not at temp long enough or not cooled quickly enough. I only know that I know nothing. I think this pretty well backs up everything I have said on this subject. We’ll be the World Champions for the 6th time. If you’re forced to pursue the wrost case scenario, then the other option is to use super duplex welding consumables for the weld coupon.
Astm g48 method a posted Metrode’s recommendations which backed up everything I have said and what is your response?
The available pitting and crevice testing methods include: Everyone knows it u idiot.
Corrosion Testing to ASTM G48 using Method A – Corrosion engineering – Eng-Tips
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 astm g48 method a of weeks. I feel concern that young engineers will take on astm g48 method a advice from people who are considered well versed in welding purely because they write a lot of posts. Unwelded base material or solution annealed welds xstm pass the test at higher temperatures.
Proceedings of an international conference Oceanology: Pretty quick Reply I thought!
G48 Method A is commonly called out for cast superduplex stainless with a 24 hour test period at 50C and 24hrs. Merry Christmas Henry, Stephan.
ASTM G48 Method A-Corrosive Testing #4
Log in to your subscription Username. As a welder, I take that as a resounding compliment!!!
Crisi’s original letter to metrode with minor modifications to grammar etc! Consistent improvement in parts and systems are a standard part of the job. C tests at that temperature is clear that the microstructure have been affected.