Ceramic Discs & Ceramic Tubes

Alumina Ceramics	IC 60	IC 80	IC 95	IC 99.5
Chemical Analysis
AL203 Min	60	80	95	99.5
Sio3 Max	35	18	3	0.20
Fe2O3 Max	0.50	0.30	-	-
Na2O Max	1	1	0.50	0.20
Physical Properties
Colour	White	White	Ivory/ White	Pink/Ivory/ White
Sp.Gr. – gms/cc	2.80	3.20	3.80	3.90
Water Absorption	0	0	0	0
Max.Service Temp –⁰ C	1450	1550	1650	1800
Gas Permeability	Nil	Nil	Nil	Nil
Hardness R45N	68	72	83	83
Chemical Resistivity	Good	Good	VeryGood	Excellent
Co-eff. Of Thermal Expansion – Linear Coefficient
(RT-1400⁰ C) x 10^-6 /⁰C Max.	-	-	8.0	8.3
Flexural Strength N/mm2	210	280	350	365
Tensile Strength N/mm2	-	-	188	260

The Values are obtained from standard bars & cubes, Data on other shapes shall differ, the data should not be taken as a specification but for general guidance only

Products Manufactured		Sizes
Thermocouple Protection Tube (One end closed)	4mm to 250mm		2 meters
Tubes (both ends open)	1mm to 250mm		2 meters
Beads (sleeve) single & multiple bore	1mm to 25mm		2 meters
Bushes, Nozzles, Rods Sleeves		Customer Specified
Ferrules as per specification		Customer Specified
Crucibles, Combustion Boats, Combustion Tubes		Customer Specified
Custom Designs & Special Shapes for specific applications

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