Superior Graphite has been producing silicon carbide since 1989,  using a unique continuous furnace operation in Hopkinsville, KY.  Various methods of milling there further process green Beta SiC, as well as green Alpha SiC, into a range of sizes for  various markets including,  among others, Friction, MMC, and Advanced Ceramic (wear parts and armor).  These long term experiences, efficient operations, as well as the knowledge of making parts from our own SiC highly sinterable powders, makes  Superior Graphite a unique domestic supplier of high quality ceramic powders.

Alpha & Beta Silicon Carbide

Type	Characteristics	Application	Appearance
Beta SiC	Cubic structure, microcrystalline, cubic structure, microcrystalline, wear resistance in coatings and composites, highly sinterable in sub-micron size. Rounded porous shapes	High performance wear parts such as seal rings and pump parts, additive to toner for increased flowability and internal printer cleaning, additive to nickel, chrome, aluminum etc. for strength
Alpha SiC	Hexagonal structure, relatively large single crystals, harder than beta, highly sinterable in sub-micron size. Sharp solid shapes	High performance wear parts such as seal rings and pump parts, armor and abrasive applications

Silicon Carbide Grades

Our Silicon Carbide products can be modified to meet customer demand.
Besides SiC, B4C is now available in sub-micron sizes.