Alumina Grades and their Applications

99899.8% alumina can be used at operating temperatures to 1950°C in both oxidizing and reducing atmospheres. Tubes have been evacuated to 10^-7Torr at 1500°C. 998 proves inert to hydrogen, carbon and refractory metals in many severe situations.

Noble metal thermocouple protection, furnace tubes, high temperature vacuum furnaces, heat treating furnace rollers, radiant tubes, laser tubes, corona treater tubes and ozone generators.

AP3599.0% alumina is a high purity body designed for the extrusion manufacturing process. It offers good insulating characteristics and high temperature capabilities.

腐蚀性环境和电绝缘应用。高贵的金属热电偶和扩散炉轮廓夫妇，激光波导和RTD。

AV3096％的氧化铝是一种非常坚韧的氧化铝，其经济价格尤其是为耐磨性应用而设计的。

Abrasive and corrosive environments.

25.4mm（1英寸）

114.3mm (4 1/2")

152.4mm（6英寸）

228.6mm (9")

ALUMINA

±5％或±.65mm
±(0.025") min.

±4％或±1.27毫米
(±.050") min.

±5％

±6％

Standard camber tolerance is .794 mm (1/32")) per 305 mm (1 foot).
标准强度公差为±1.575毫米（1/16英寸）。
引号提供了更严格的公差和非录音公差。