Name: China Alumina Ceramic Tube Suppliers, Manufacturers, Factory - Wholesale Price - Unipretec Ceramic Technology
Brand: UNIPRETEC
SKU: 138717727

Alumina ceramic tube is made of Aluminum Oxide(Al2O3), which is a white or ivory white ceramic that has been applied to electrical components from an early stage by taking advantage of its good electrical insulation properties, besides, ceramic tubes made of high alumina have also high resistance to temperature, heat, wear and corrosion, and alumina ceramic is the cheapest material among the fine technical ceramics. UNIPRETEC offers high alumina tube with a purity range from 95% to 99.8%. It is also possible to manufacture large nonporous alumina ceramic tubing, and the high purity type has high mechanical strength and excellent corrosion resistance.

General Features

● thermal stability	● electrical insulation	● high hardness, Mohs 9	● good heat conductivity
● high chemical resistance	● various available purities	● high working temperature	● max. length up to 2,000mm

Material Properties of Alumina Ceramic Tube

ITEM	UNIT	A950	A990	A995	A998
Material	-	95%Al₂O3	99%Al₂O3	99.5%Al₂O3	99.8%Al₂O3
Colour	-	White	Ivory	Ivory	Ivory
Density	g/cm³	3.70	3.85	3.90	3.92
Vickers Hardness	Gpa	14	17	17.5	17.5
Flexual Strength	Mpa	310	360	370	380
Compressive Strength	Mpa	2,200	2,500	2,600	2,650
Electrical Resistivity	Ω·cm	≥10¹⁴	≥10¹⁴	≥10¹⁴	≥10¹⁴
Dielectric Strength	KV/mm	15	17	17.5	17.5
Dielectric Constant	1MHz	8	9	9.5	9.6
Max. Working Temp.	℃	1,500	1,650	1,700	1,700
Thermal Conductivity (25℃)	W/m·k	25	29	30	30.5
Resistance to Thermal Shock	△T(℃)	210	230	235	235