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Ultrasonic testing on SDSS A995 Gr.5A castings

Ultrasonic testing on SDSS A995 Gr.5A castings

Ultrasonic testing on SDSS A995 Gr.5A castings

(OP)
Shell Mesc SPE77/302;2008 requires 100% RT/UT on pressure containing parts in IC-IV. Since UT is given as an option, valve manufacturers are proceeding with UT on SDSS castings to save time. Since we do not have a reference standard for UT on high alloy steel castings, can we allow manufacturers with UT?     

RE: Ultrasonic testing on SDSS A995 Gr.5A castings



This is a question where the answer can only be given by Shell or the end users as this is an interpretation of a standard. The interpretation could differ. (My answer would be 'no' - depending on end users practice you could head into problems here? (Others?))

You might ask (perhaps this was the intention?) if others have had any similar experience.

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