The temperature of softening point of quartz glass is about 1730  ,May use for a long time under 1100 ,Is temperature short time highest using may reach 1450!

Besides the fluorine acid of removal of hydrogen embrittlement, quartz glass nearly does not occur chemical reaction with other sour kind of materials ,Its acidresisting ability is the 30 times of porcelain, the 150 times of stainless steel ,Especially under high temperature chemical stability, is other any project materials can not compare!