We are make 99.7% Al2O3 tubes, which max working temperature is 1800℃
and 95% Al2O3 tubes, which max working temperature is 1500℃
1)high mechanical strength at high temperatures
2)good resistance to thermal shock
3)excellent resistance to chemical attack
4)high hardness and resistance to wear and abrasion
5)low specific gravity
2. If tolerance is not same with what we discussed, we will send replacements.
3. Standard sizes.
Diameter ODXID(mm) | 30x25 | 40x34 | 50x44 | 60x53 | 70x63 | 80x70 | 85x75 | 90x80 | 100x90 | 110x100 |
Max Length | 2000 | 2000 | 2000 | 2000 | 2000 | 1800 | 1800 | 1800 | 1700 | 1700 |
Thermocouple Protection tube
Diameter ODXID(mm) | 5x3 | 6x4 | 8x5 | 10x7 | 12x8 | 14x10 | 15x10 | 16x12 | 17x14 | 20x16 | 25x19 |
Max Length (mm)) | 300 | 1200 | 1600 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 |
Thermocouple Insulator
Types | 1 Bore | 2bores | 4bores |
Diameter ODXID(mm) | OD1-12mm, ID0.5-8mm | OD1-12mm ID0.2-4mm | OD1.6-12mm ID0.35-3.5mm |
Max Length (mm) | 2000mm | 2000mm | 2000mm |
For other sized tubes, please contact with us.
Technical Data
Al2O3 Purity (%) | Density (g/cm3) | Bending Strength (Mpa) | Expansion (X10-6/℃) (25-800℃) | Thermal Conductivity (W/(m.R)) | Dielectric Strength (kv/mm) | Max Working Temperature (℃) | Water Absorption (%) |
95 | 3.60 | 364 | 7.6 | 20 | 11 | 1500 | <0.2 |
99.7 | 3.90 | 450 | 8.0 | 35 | 12 | 1800 | <0.1 |
2. Warped with bubble plastic paper.
3. Put in wood box padded with foam board.
4. Sealed the box with screws which is easy to be opened.
5. Fragile warning stick.
Shipping Method
By sea, by Air, by express way.