In F91 Globe valve 316disc was used, customer complain Disc eroding, Working temperature 550°C Pressure 160bar, Steam,Can we say F316 wrong material selection & suggest F91/Inconel disc material.
In B16.34, A 182 Gr. F316, At temperatures above 538°C, use only when the carbon content is 0.04% or higher. Flanged end valve ratings terminate at 538°C. Please clarify
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