Accuratus maintains an inventory of standard extruded and cast aluminum oxide, mullite and sialon shapes for fast delivery requirements. These are low cost, quality rods and tubes that can be quickly cut to precision lengths. (See Mullite Sizes, Aluminum Oxide Sizes and Sialon Sizes). Accuratus will also custom fabricate any tube geometry not shown in the standard catalog list. Please call us for your special requirements or send your engineering drawings for quotation.

Mullite is a good, low cost refractory material with a nominal composition of 3Al2O3•2SiO2. The raw materials for mullite are easily obtainable and are reasonably priced. It has excellent high temperature properties with improved thermal shock and thermal stress owing to the low thermal expansion, good strength and interlocking grain structure.