QW-404.12 - changes classification

QW-404.12 - supplementary essential, a change in the filler metal classification will be re-qualified welding procedure.

We found many PQR more than 10 years ago, they was used electrode ER70S-G. It was impacted at classification when we develop a new WPS.

You would like to save cost by using electrode designation affix ā€œ-Gā€ in the WPS if essential are unchanged, but PQR should run on the electrode designation ER70S-6/-2/-3.

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