alumina tube

Detailed Product Description

ceramic tube, alumina tube, thermcouple tube

Item	Index
Al²O³(%)	≥95
Direct Current Breakdown Strength (Kv/mm)	≥20
Dielectric Constant (ε 0.5-5MHz)	8.5-9.6
Specific Volume Resistance ( Ω·m 25Ω·)	5 x 10¹²
Coefficient of Heat Conductivity (W/mk 25)	21.8
Thermal Expansivity (room temperature to 500 )	7 x 10^-6
Max. working temperature ()	1540
Hardness	≥87
Bulk Density (g/cm³)	≥3.6