Product Details

Specifications

Alumina al2o3 ceramic insulators for sale
-Use for electrical products
-Good insulation
-Heat resistance
-High strength

Alumina al2o3 ceramic insulators for sale

Features:

1) A variety of specifications available.

2) Satisfy various technical request

3) Lower medium spoilage

4) Good insulation performance and high temperature resistance

5) Stiffness texture

6) Used in all electric products, electric heating products and wear resistant machinery parts.

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.

Performance For Electrical Ceramic
Item		Unit	Steatite ceramic	95 Al2O3	96 Al₂O₃
Physical Characteristics	Heat resistance	⁰C	1100	1500	1550
	Bulk density	g/cm³	2.7	3.6	3.6
	Water absorption	%	0	0	0
Mechanical Characteristics	Flexural strength	Mpa	145	320	340
	Hardness vickers	Gpa	5.7	12.2	13.5
	Elastic modulus	Gpa	120	280	320
	Poisson’s ratio		0.21	0.22	0.23
Thermal Characteristics	Linear expansion coefficient	(20-500⁰C) 10^-6/⁰C	7.9	7.1	7.2
	Thermal conductivity	w/(m.k)	2.5	16	24
	Specific Heat	10^-3J/(kgK)	0.75	0.78	0.78
Electrical Characteristics	Dielectric constant (1MHZ)	-	6.2	9	9.4
	Dielectric loss angle	*10^-4	18	15	5
	Dielectric strength	*10⁶V/m	18	12	15
Processing technology
Process range (mm)
Outside Diameter	1---300
Inside Diameter	0.5---300
Length	0.5---600
Accuracy of working (mm)
Perpendicularity	0.001
Concentricity	0.001
Roundness	0.0005
Straightness	0.005
Parallelism	0.01
Planeness	0.005
Roughness	0.005
Fit clearance	0.005