Machinable Glass Ceramic has a continuous use temperature of 800C and a peak temperature of 1000C. Its coefficient of thermal expansion readily matches most metals and sealing glasses.It processes good machinability and can be lathed, milled, planed, ground, bored, incised and threaded. It also has the advantages of insulation, pore-free, highlow-temperature resistant, acid and alkali resistant and thermal impact resistant.