Nonclay Refractories

Establishments primarily engaged in manufacturing refractories and crucibles made of materials other than clay. This industry includes establishments primarily engaged in manufacturing all graphite refractories, whether of carbon bond or ceramic bond. Establishments primarily engaged in manufacturing clay refractories are classified in Industry 3255. Alumina fused refractories Brick, bauxite Brick, carbon Brick, refractory: chrome, magnesite, silica, and other nonclay Brick, silicon carbide Castable refractories, nonclay Cement, magnesia Cement: high temperature, refractory (nonclay) Crucibles: graphite, magnesite, chrome, silica, or other non-clay Dolomite and dolomite-magnesite brick Cunning mixes, nonclay High temperature mortar, nonclay Hot top refractories, nonclay Nonclay refractories Plastics refractories, nonclay Pyrolytic graphite Ramming mixes, nonclay Refractories, castable: nonclay Refractories, graphite: carbon bond or ceramic bond Refractory cement, nonclay Retorts, graphite