Dear Ilkin Hasanov ,
Acceptance of Nitrid precipitations is depending on if CVN and ASTM G 48 test passed or not .. just to be recorded in the report
Best Regards ,
Ahmed Osman
On Thursday, March 18, 2021, 06:07:45 a.m. GMT+3, Ilkin Hasanov <ilkinhasanov.91@gmail.com> wrote:
Hi All,
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Could you please advise,
If during micro-structural analyse it were observed Nitrid Precipitates , how need to evaluate test results (mechanical test was done according ISO17781 QL 2)
I want to note that, Specimens were taken for WPQT of Duplex SS, MDT is -25Celsius
PQT coupon dimensions are WT=18mm OD=168.3mm.
Corrosion test results are acceptable ,There was no observed any pittings & Charpy V test results are acceptable (@-46celsius)
Regards,
Ilkin Hasanov.
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