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Recent content by andyrich

  1. andyrich

    Valve seizure in automotive application (stellite galling issue)

    Hi, I am experiencing a problem with a valve seizure on a high temperature (600ºC) automotive application. The shaft is stellite 6 which is being used in a 420V vanadium stainless steel bushing. The valves are seizing, and examination of the surfaces seems to show that this is due to galling...
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