Machined alumina ceramic products are the main product .We are making High quality alumina tubes, Diameter from 1-120mm, length from 10-2000mm. .
99.7% alumina is the main material, 85% and 95% alumina tubes also available.
Other material like Mullite,Zirconia, Silicon Carbide, Silicon Nitride bonded Silicon Carbide is also available.
Features :
1. High quality: Max working temperature 1800C, high abrasive resistance.
2. Various sizes for your choose, diameter from 1-120mm, length from 10-2000mm
3. Various processing methods make right tubes for different usage, including extruding, casting, pressing etc.
4. Tubes can be grinding, drilling holes etc according to the requirements of customers.
5. Large quantity in stock can provide fast delivery and very competitive prices.
Furnace Tube | |||||||||||||||||||||
Diameter OD/ID (mm) | 30/25 | 40/34 | 50/44 | 60/53 | 70/63 | 80/70 | 85/75 | 90/80 | 100/90 | 110/100 | |||||||||||
Max Length (mm) | 2000 | 2000 | 2000 | 2000 | 2000 | 1700 | 1600 | 1600 | 1500 | 1200 | |||||||||||
Thermocouple Protection Tube | |||||||||||||||||||||
Diameter OD/ID (mm) | 5/3 | 6/4 | 8/5 | 10/7 | 12/8 | 14/10 | 15/10 | 16/12 | 17/14 | 20/16 | 25/19 | ||||||||||
Max Length (mm) | 300 | 1000 | 1600 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | ||||||||||
Thermocouple Insulator | |||||||||||||||||||||
Single Bore | Double Bores | Four Bores | |||||||||||||||||||
Diameter OD/ID (mm) | OD1-12 ID0.5-8 | OD1-12 ID0.2-4 | OD1.6-12 ID0.35-3.5 | ||||||||||||||||||
Max Length (mm) | 2000 | 2000 | 2000 | ||||||||||||||||||
Technical data of alumina tubes.
Al2O3 content % | 70-75 | 85 | 95 | 99.7 |
Density (g/cm3) | 3.0 | 3.4 | 3.7 | 3.9 |
Bending Strength (Mpa) | 85N/MM2 | 300 | 364 | 450 |
Expansion (X10-6/°C)(25-800°C) | 6 | 7 | 7.6 | 8 |
Thermal Conductivity (W/(m.R)) | 17 | 18 | 20 | 35 |
Dielectric Strength (kv/mm) | 9 | 10 | 11 | 12 |
Working Temperature °C (Long time use) | 1300 | 1400 | 1600 | 1750 |
Water Absorption % | 5 | <0.2 | <0.2 | <0.1-0.2 |