Product Description Industrial cordierite ceramic tube Brief description:

Material

95%Alumina:

1). 95% alumina or steatite ceramic.heat compression molding,the alumina has been to improved insulation and mechanical strength.

2). The ceramics have no cracks,no burrs,no pinholes,no gaps,and no impurities, surface is smooth, dye absorption is passed.

3).Linear dimension tolerance ≤ ± 0.05mm, diameter tolerance ≤ ± 0.1mm, hole size distortion ≤ 0.05mm, circumference deformation size ≤ 0.1mm.

4). Insulation Resistance ≥ 100MΩ (have been checked by megohm in DC500V).

5). Dielectric Strength: AC2000V/50HZ/1min no breakdown phenomenon.

6). Linear expansion coefficient is slight,and less than 7.0 × 10-6mm /°C, and good for thermal shock performance.

7). Sintering temperature is 1350 °C, the use of a temperature not lower than 1100 °C, good corrosion resistance.

Performance
Item	Index	Unit	Steatite ceramic	95 Al2O3	96 Al2O3
Physical Characteristics	Bulk density	g/cm3	2.7	3.2	3.6
	Water absorption	%	0	0	0
Mechanical Characteristics	Flexural strength	Mpa	145	320	340
	Hardness Vickers	Gpa	5.7	12.2	13.5
	Poisson`s ratio	-	0.21	0.22	0.23
Thermal Characteristics	Thermal conductivity	w/(m.k)	2.5	16	24
Electrical Characteristics	Dielectric constant(1MHZ)	-	6.2	9	9.4

Product Description

1. Advantages :

1). Excellent insulation ,security , long working life .

2). Precise grinding and polishing.

3). Excellent heat radiation, small size ,more environmental and energy-efficient .

4). good thermal conductivity
5). large specific heat capacity
6). low pressure drop
7). good heat-shock resisting ability

8). Working temperature: 600℃-1200℃

2. Application :

1). Gas cooker,Water heater,Gas oven, Gas boiler,Air-conditioning and so on.

2). As ceramic parts of flexible pad and channel heaters at operations of pre and postweld heat treatment; Welding process, stress-relieving, pre-heating & post heating, other resistance-heating environment
3). halogen lamps, high and low pressure uv lamps, mercury lamps, uv lamp holders and heating tubes.

4). high-power electrical applicance and all kinds of insulation device.

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Product Categories : Insulation Products > Ceramic Parts