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  • Users: dcfrush
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  1. dcfrush

    Is hydrogen bake-out of small bore piping in wet H2S service necessary

    My refinery has always done this in the past but I'm not sure it is necessary (small bore piping <2" and service with H2S >50 ppm in water phase). Would it be sufficient to maintain a preheat of ~200 degF, use E7018 low hydrogen electrodes, and follow up with a PT 48 hours after welding...

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