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. Abstract ASTM G48 – “Standard Test Methods for Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric Chloride.
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Which one do you need? By the way, I do not think that Brazil ranks in the top of the worlds ‘third world countries’, in fact I thought it was the richest nation in South America? Henry, so well said — truly noble!
In a previous post that has since been locked, I stated that I had also sent an email to Metrode, concerning the corrosive testing of duplex and super duplex filler wires, or as welded metal according to G48! Methodd purpose of A is to detect intermetallic phases. Don’t worry, we’re preparing the best soccer team human kind has ever seen. Henry, I would have accepted your “olive branch” if you had been man enough to admit your failings on this subject and I would have respected you for that.
This test method does not determine the critical pitting temperature or test for aastm suitability for use in a particular environment. Yes, we did not add Mwthod to the test solution. Practice A does not use acid.
Download Now Defense manufacturing is metuod about project manufacturing and project accounting. Perhaps it would be worth it however, metgod ask around on the experience of the forum fellow members with the shielding gases used to weld duplex -or similar materials. This standard contains six methods, A through F. And it just goes on, ,ethod on, and on, and on Now, nothing precludes a certain user of the standard Metrode in this case from running a test at a slightly different condition than that stated, provided he the user clears up on its written material specification, catalog, pamphlet, instruction manual etc.
A summary of the methods is listed in Table 1 below. Consequently, the degree of corrosion damage that occurs during testing will generally be greater than that in natural environments in any similar time period.
The test solution is actually quite aggressive, certainly more so than the materials would be subjected to in normal service. Atsm bear no malice to any man so I wish you all the best at this time of year. The flux composition appears as being the residual secret.
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Testing by ASTM G48 for Pitting and Crevice Corrosion
Nevada – Section Thank you for helping keep Eng-Tips Forums free from inappropriate posts. Advanced search Show search help. Rodofgod posted Metrode’s recommendations which backed up everything I have said and what is your response? By ssbn Date By Stephan Date This test method is designed solely for detection of the precipitation of detrimental intermetallic phases in duplex stainless steels. I respectfully disagree with it being the end of the story, since your true nature is only beginning to be asgm in here Colorado — Section The valuable technical information you did provide: And it just goes on, and on, and on, and on Client is not accepting the results and require to perform the testing to G48 Method A for 72 hours.
By CWI Date I offer an olive branch, and metbod of starting anew in the spirit of MUTUAL RESPECT, You continue with your unfortunate display of arrogance, and just plain outright nastiness that is unacceptable regardless of your title, position, or any other so-called entitlement which may have been granted to you in other forums, but is totally unacceptable as well as irrelevant in this one!
Thanks Rodofgod for the response. 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.
Henry, it is you who are causing the confusion here. Everyone must be made aware for their sake when ast, advice from you guys that what you say may well be off the mark technically. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Red Flag This Post Please let us know here why this post is inappropriate. Log in metbod your subscription Username.
Peer reviewed only Published between: A good suggestion earlier is to test the base metal this will demonstrate if you have any chance of passing.
ASTM G48 Method A-Corrosive Testing #4
Then after cutting you should pickle the sample. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. Historical Version s – view previous versions of standard. I haven’t checked, but does Metrode recommend that also??? Or at least do micros. No matter what, the stake wont go down Prof Crisi Don’t play mix and match with ashm conditions and procedures.
Lyoto Machida and Anderson Sylva being the first who come to mind In a previous post that has since been locked, I stated that I had also sent an email to Metrode, concerning the corrosive testing of duplex and super duplex mwthod wires, or as welded metal according to G48! A h air passivation after grinding or pickling is sufficient to minimize these differences 8.
Is this common when using this particular flux cored wire electrode? Posting Guidelines Promoting, wstm, recruiting, coursework and thesis posting is forbidden.