Carbon cups are tellurium coated sensors used for determination of carbon equivalent, % carbon and % silicon in gray, malleable and ductile iron. They cover the entire range from 2.5 to 5 ce. features: available in round and square shape guaranteed white iron solidification close control on chemistry ensures least rejection can be used with any make of ce metercarbon silicon analyzer based on thermal analysis principle cup available in small, medium and large size to suit various applications in foundry