As the severity and diversity of industrial processes increases, Severe Service Valves (SSVs) play an increasingly important role in isolating and controlling the various fluids used within them. Valves can be constructed with cast, wrought or forged components, but for cost efficiency, especially in large valves, castings are the most commonly used form of metal for valve bodies.
In this article, Pete Schlener, Minncast Steel Foundry, and Ross Waters, CGIS, look at best practices for pouring and casting near netshape body parts in high alloys, defined here as those in ASME B16.34 for Group 2.8 (Duplex Grades) and higher, above common castings like carbon and stainless steels.
If you would like to read this article in its entirety, please contact the Editor, Candace Allison.