Alumina Ceramic Thermostat Products

  Alumina Ceramic Thermostat Products   1.we produce them with the 95% AL2O3 ceramic or steatite   ceramic, having revolutionary breakthrough if compared with traditional plastic parts,   2.they are highly improved in strength , insulation performation, heat resistance   performance, especially sensitivity to temperature.   3.High quality with low price   4.Raw material meet RoHS appliance   5.Fast delivery   The ceramic electronic components: low loss at high frequency. Good insulating , high strength, , low dielectric constant, Great mechanical strength, high air tightness, high chemical stability, etc. We can produce all kinds of ceramic holders, ceramic support, ceramic tubes, ceramic pipe, ceramic ring, etc. Widely used in electronic components, electronic device and electric products. Our products meet the international standards.    

Item		Unit	95 Al2O3	96 Al2O3	99Al2O3
Physical Characteristics	Bulk density	g/cm3	3.6	3.6	3.9
	Water absorption	%	0	0	0
Mechanical Characteristics	Flexural strength	Mpa	320	340	360
	Hardness Vickers	Gpa	12.2	13.5	15.6
	Elastic modulus	Gpa	280	320	370
	Poisson’s ratio	-	0.22	0.23	0.23
Thermal Characteristics	Linear expansion coefficient	(200C-5000C) 10-6/0C	7.1	7.2	8
	Thermal conductivity	w/(m.k)	16	24	32
	Specific Heat	*10-3J/(kg*K)	0.78	0.78	0.9
Electrical Characteristics	Dielectric constant (1MHZ)	-	9	9.4	9.9
	Dielectric loss angle	*10-4	15	5	1
	Dielectric strength	*106V/m	12	15	15
Processing technology
Process range (mm)
Outside Diameter	1---300
Inside Diameter	0.5---300
Length	0.5---1200
Accuracy of working (mm)
Perpendicularity	0.01
Concentricity	0.01
Roundness	0.005
Straightness	0.005
Parallelism	0.01
Planeness	0.005
Roughness	0.05
Fit clearance	0.005