1. Making crucible, muffle furnace, burner, heating fixture, casting mould, aluminium conduit, thermocouple protection sleeve, lining of aluminium electrolysis cell and other thermal equipment components in metallurgical industry.
2. Making high-speed turning tools, bearings, supporting parts for heat treatment of metal parts, scrapers for rotor engines, guide vanes and turbine blades for gas turbines in the machinery manufacturing industry.
3. Used in chemical industry as ball valve, pump body, sealing ring, filter, heat exchanger components and immobilized catalyst carrier, combustion boat, evaporating dish.
4. In semiconductor, aviation, atomic energy and other industries, it is used to manufacture switching circuit substrates, thin film capacitors, electrical insulators to withstand high temperature or great temperature changes, radar wire covers, missile tail nozzles, support and isolators in atomic reactors, and carriers of nuclear fission materials.
5. Artificial joints can be made in the pharmaceutical industry.