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Diameter 20mm alumina ceramic insulator tubes

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Product Details

Diameter 20mm alumina ceramic insulator tubes
1.High temperature
2.Good insulation
3.High strength
4.Precision Process

Productive Technology:

Alumina ceramic is the special corundum ceramic that been sintered under 1800 °C with the

main raw material of Al2O3 and flux of rare metal oxide.Using the high strength organic/inorganic

bond to felt together, and then grinding to the size as drawing required.

Advantages:

1.High temperature

2.Good insulation

3.High strength

4.Precision Process

Alumina Ceramics Properties
Alumina Content	Unit	95%	99%
Density	g/cm3	3.6	3.8
Water absorption	%	<0.4	<0.2
Firing temperature	°C	1600	1800
Hardness	HRA	70	80
Coefficient of linear expansion	*10-6/°C	5.5	5.3
Dielectric constant		9	10.5
Volume resistivity	Ω·cm	—	10¹³
Breakdown voltage	KV/mm	14	15
Breaking strength	Mpa	250	300

Shanghai Kessen Ceramics Co., Ltd.: Contact nameFlynn Shen
Chat Now; Phone86-21-51099195; AddressNo. 1115, Yongxin Road, Xuhang Town