Single or Multi Bores Ceramic Thermocouple Insulator Tubes
- MSJ/HTCT-004
- 95% 99% 99.5% alumina ceramic
- 35 days after order
- 10 pcs per type
- 20000 pieces per month
Mascera is a professional supplier for technical ceramic parts, we provide custom manufacturing for alumina ceramics, zirconia ceramics, boron nitride ceramics, silicon nitride ceramics, silicon carbide ceramics, aluminum nitride ceramics and machinable glass ceramics.We 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
When it comes to requiring protection, resistance, and durability, alumina, also known as aluminum oxide, is the top choice. Alumina's strength and resilience make it the preferred material for demanding conditions where resistance to deterioration and deformation is crucial. Alumina ceramic tubes possess a range of characteristics and features that make them highly suitable for various applications. This high-quality tubing exhibits exceptional hardness, excellent chemical resistance, long wear life, and outstanding insulation properties. Its diverse properties have made it a staple in industries that necessitate tubing capable of withstanding extreme temperatures.
The quality of an alumina tube relies on its purity, with higher purity levels resulting in greater resistance. Mascera Ceramics produces tubes with a purity factor of 95% or higher. The tubes can be shaped into various diameters to suit specific applications. Our alumina tubes exhibit high thermal conductivity and can endure significant compression.
Thanks to its dielectric properties, an alumina tube is ideal for insulating electrical connections. The ceramic material's density provides protection against gas or liquid intrusion. With exceptional resistance to wear and abrasion, as well as its stability up to 1800℃, it ensures longevity and reliability. Once installed, it can withstand hazardous or hostile conditions without compromising performance.
Manufacturing Specification
Materail: 95% / 99% / 99.5% alumina ceramic (C795 / C799)
Available shape: round tubes, square tubes or custom shapes
Available size: Outer diameter 0.7-200mm, Inner diameter 0.3-190mm, length up to 2000mm.
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
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
