How to Select Cobalt Alloy Grades for Steam Valve Seats, Discs, and Sealing Surfaces
Steam valve seat material selection is not a simple hardness comparison. In power plant steam service, the sealing surface may face temperature, pressure drop, metal-to-metal contact, erosion, galling, thermal cycling, and repair constraints at the same time. That is why engineers often evaluate cobalt-based alloy grades for valve seats, discs, seat rings, wedge sealing faces, […]