Alumina and Zirconia Ceramic Parts
Sentro Tech Corp. Provides Engineering solutions to various industries for their corrosion, wear, erosion and electric resistance application even at high temperature. Alumina or Zirconia Ceramic parts provides excellent high temperature resistance, size stability, electric insulation, thermal shock resistance, extremely corrosion and wear resistance.
Sentro Tech Corp. Provides alumina and zirconia ceramic parts for many applications:
- Furnace process tubes
- Steel tube liners
- Coal handling wear resistance pads
- Thermocouple protection tubes
- Sandblasting nozzles
- Wire drawing dies
- Bushings and caps
- Crucibles
- Tool bits
- Saggers
- Kiln furniture
- Mechanical seals
- Fuel cell parts
- Rollers for hearth furnaces
- Welding nozzles
- Laser parts
- Gas igniters
- Electric insulator
- Ceramic guiders
- Ceramic screwdrivers
- Zirconia oxygen Sensors
- Medical and surgical components
What We Do
We specialize on custom alumina and zirconia ceramic parts. Sentro Tech Corp. will work with you and provide solutions to meet your needs. Just simply Email ( info@sentrotech.com ) or fax us ( 1-440-260-0413) the specification sheet and drawing, we will provide the quotation to you.
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TYPICAL PHYSICAL PROPERTIES |
|
MATERIAL |
ALUMINA |
|
|
|
|
|
|
Composition |
99.80% AL2O3 |
99.5% AL2O3 |
|
Bulk
Specific Gravity (g/cc) |
3.9 |
3.8 |
|
Color |
Ivory |
Ivory |
|
Impenetrability |
Gas Tight |
Gas Tight |
|
Dye
Penetration A.S.T.M. |
Tight |
Tight |
|
Flexural Strength (psi) |
70,000 |
50,000 |
|
Compressive Strength (psi) |
370,000 |
350,000 |
|
Tensile Strength (psi) |
43,000 |
33,000 |
|
Maximum Working Temperature |
1800 °C |
1750 °C |
|
Likely Sag Temp. Unsupported Tube* |
1600 °C |
1600 °C |
|
Thermal Conductivity 24°C |
230 |
200 |
|
(BTU-in/ft²-hr-°F) 800°C |
60 |
50 |
|
Dielectric Strength 24°C V/Mil |
300 |
270 |
|
Thermal Expansion (per °C x 10-6) |
8 |
8.4 |
|
(24°C-1000 °C) |
|
|
|
Hardness (Moh’s scale) |
9 |
9 |
|
*Temperature at which an empty tube, 1 1/4" diameter,
suspended across an 18" span, will sag 1/4" in 1 hour. |
|
Where sag is not acceptable, tubes must be adequately
supported along the full length. |
