Supply High Temperature Refractory materials 90-99%Alumina tube

Specificationsalumina tube :
The size ranges from
3mm to 100mm for O.D.,
and the length is from
10mm to 1,300

High-purity Alumina pipe, 99% corundum ceramic tube is suitable for sample analysis and melt of laboratory metal, non-metallic materials,and furnace kiln refractory pipe,max.working temperature 1800 Celsius Degree.

Alumina Tube Pipes'features:
    1, High purity: Al2O3> 99%, good chemical corrosion resistance
    2, Good temperature endurance, long-term use at 1600 °C, 1800 °C short-term
    3, Good rapid thermal shock resistance, not easy to burst
    4 , Slip Casting with high density 

Specification	Unit	1	2	3
Al2O3	%	99.7	99.3	85
SiO2	%	0.1	—	—
Density	g/cm3	3.95	3.88	3.2
Absorbing water rate	%	0	0.01	0.2
Compression strength	MPa	450	350	200
20°C	Torr/L.sec	10-11	10-11	10-11
20—1000°C	mm.10-6/°C.m	8.6	8.2	8.2
Heat-conduction rate	W/m.k	25	25	25
Dielectric strength	KV/mm	20	20	15
20°C	Ohm/cm	1014	1014	1014
Dielectric constant	1000°C MΩ	≥0.08	≥0.08	≥0.08
	1300°C MΩ	≥0.02	≥0.02	≥0.02
Heat resistant shaking Use temperature at most		1550°C 6times: no crack	1550°C6times: no crack	1300°C 3times:  no crack
	°C	1900	1800