Square Al2O3 Alumina Ceramic Tube For Corona Electrode
- MSJ/HTCT-005
- 95% 99% 99.5% alumina ceramic
- customized
- 10 pcs per type
- ceramic insulator tube for corona electrode
Mascera e produce alumina ceramic tubes for different usage, such as ceramic furnace tube, ceramic thermocouple protection tube, multi-hole ceramic tubes for thermocouple, ceramic square tubes for corona machines etc.
Any inquiry please email info@mascera-tec.com or call +86 13860446139
Product detail
Alumina ceramic (also called al2o3 or aluminum oxide ceramic) is widely applied in high temperature fields because of their good resistance to high temperature, it can withstand high temperature up to 1800℃, in addtion to its stable chemical properties, high mechanical strength and electrical insulation, alumina ceramic is widely used to make ceramic tubes for high temperature furnace, one end closed ceramic tubes or multi-hole insulating rods for thermocoulples, square ceramic tubes for corona electrode. Mascera is able to produce ceramic tubes as long as 2000mm using the extrusion molding technology, custom size is available, please contact us when you have any demand.
Manufacturing Specification
1.Materail: 95% / 99% / 99.5% alumina ceramic (C795 / C799)
2.Available shape: round tubes, square tubes or custom shapes
3.Usage of tubes:
1）thermocouple protection tubes（one end closed, single hole）
2）ceramic furnace tube (open both ends, single hole)
3）ceramic insulting rods for thermocouples (open both ends, single hole/double holes/four holes/multi holes)
4）square ceramic tubes for corona electrode
4.Available size: Outer diameter 0.7-200mm, Inner diameter 0.3-190mm, length up to 2000mm.
Product Feature
High mechanical strength and hardness
Extreme wear resistance
Good electrical insulation
Low dielectric constant and dielectric loss
Excellent corrosion resistance
Good resistance to high temperature
Material Data Sheet
Item | Unit | Technical Parameter | ||
Al2O3 purity | % | 95 | 99 | 99.5 |
Color | --- | White | Ivory | Ivory |
Density | g/cm3 | 3.75 | 3.8 | 3.88 |
| Straightness | --- | 1.5‰ | 1.5‰ | 1.5‰ |
Moh’s hardness | --- | 9 | 9 | 9 |
Water absorption | % | 0.01 | 0.01 | 0.01 |
Flexural strength | Mpa | 300 | 340 | 375 |
Thermal conductivity (@R.T.) | W/mk | 16 | 24 | 25 |
Thermal expansion coefficient (25-1000℃) | 10-6/℃ | 7.6 | 7.6 | 7.6 |
Maximum temperature for long time working | ℃ | 1450 | 1600 | 1650 |
Refractory temperature | ℃ | 1650 | 1750 | 1800 |
Dielectric Sstrength | Kv/mm | 16 | 19 | 20 |
Electrical resistivity (@R.T.) | Ω.cm | 1014 | 1014 | 1014 |
Dielectric constant (1MHz, R.T.) | --- | 9 | 9.5 | 9.7 |
Packing & Shipment
| Package type | carton box with foam protection |
| Payment terms | TT / Western Union / Paypal 50% payment in advanced and 50% before shipment |
| Loading port | Xiamen, China |
| Shipping way | By sea / air / door-to-door express |
Why Choose Us
10+ years experience in technical ceramics manufacturing and R&D
ISO9001:2015 certificated quality control management system
Different types of ceramic materials are provided for your different applications
Products have been exported to 40+ countries and have good reputation from our customers
MOQ is low, both prototype and bulk order will keep high quality
Any of your inquiries or questions will be responded no longer than 24 hours
Rigorous production plan to ensure on-time delivery
