95% 99% Zirconia Alumina Ceramic Tubes For Furnace
95% 99% Zirconia Alumina Ceramic Tubes For Furnace
General Description of Alumina Ceramic:
Due to various excellent performance of the alumina ceramics under wide range of industrical or labority conditions, high purity corundum ceramic tube used for alumina insulating furnace tube are mainly used in the area of thermal processes, protecting tubes, insulating tubes, furnace tubes, radiant tubes, support tubes for electric heaters, beams,profiles, incineration aids and special fabrications.
Characteristic
1. Excellent insulation , long lifetime .
2. Have good heat radiation and anti-corrosion.
3. Good thermal conductivity .
4. High strength and high density.
5. Excellent heat-shock resisting ability.
6.High temperature resistance: 1800℃.
Data Sheet
|
Alumina Ceramic Properties |
96 Alumina Ceramic |
99 Alumina Ceramic |
|
|
Item |
Unit |
Typical Values |
|
|
Physical Properties |
|||
|
Color |
|
White |
Ivory |
|
Density |
g/cm3 |
3.7 |
3.85 |
|
Alumina Content |
% |
96% |
99% |
|
Gas permeability |
|
0 |
0 |
|
Water Absorption |
|
0 |
0 |
|
Mechanical Properties |
|||
|
MONS’ Hardness |
|
|
82 |
|
Vickers Hardness (Hv50) |
Gpa(Kg/mm²) |
15.7(1600) |
15.7(1600) |
|
Flexural Strength(20°C) |
Mpa |
300 |
330 |
|
Compressive Strength(20°C) |
Mpa |
2000 |
2000 |
|
Modulus of Elasticity (20°C) |
Gpa |
275 |
|
|
Poisson's Ratio (20°C) |
|
0.22-0.23 |
|
|
Fracture Toughness(20°C) |
MPam1/2 |
3.5 |
4 |
|
Thermal Properties |
|||
|
Thermal Conductivity(20°C-400°C) |
W(m.K) |
25 |
27.5 |
|
Thermal Expansion Coefficient |
10-6/°C |
6.5-7.5 |
7.6 |
|
Thermal Shock Resistance |
T°C |
200 |
200 |
|
Maximum Use Temperature |
°C |
1600 |
1650 |
|
Electronic Properties |
|||
|
Dielectric Strength |
KV/mm |
>12 |
>10 |
|
Dielectric Constant |
Er |
9-10 |
9.1 |
|
Dielectric Loss Angle(1MHz) |
|
0.0002 |
0.0002-0.0003 |
|
Volume Resistivity(20°C) |
Ω.cm |
>1014 |
>1014 |
FAQ
Q1: Are you trading company or manufacturer ?
A: We are factory.
Q2: Do you provide samples ?
A: Yes, Samples in free charge.
Q3. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q4. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery for 3times.
Q5. After-sales service
A: If you find any broken products in mass quantity, we will produce again or compensate money directly and offer discount in next order.
We can sign the quality agreement when order confirmation. So we must make sure quality for you.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.