Ceramic Tubes

1.Alumina (Al2O3) Ceramic Tube
● Available alumina grades range from 75% to 99.8% purity. The white, black, ivory, and gray colors are derived from the sintering additives.

2. Zirconia（ZrO2）Ceramic Tube
● Available types of zirconia: Yttria stabilized zirconia, magnesia stabilized zirconia, and Ceria stabilized zirconia  

3. Mullite Ceramic Tube
●They are porous ceramic tubes with good thermal shock and don’t create deformation or crack with high-temperature fluctuations.

4. Silicon Nitride (Si3N4) Ceramic Tube
● Silicon nitride ceramic tube has unmatched thermal shock resistance up to 1000℃.

1. Round shape:
We supply many selections of round ceramic tubes, including single-bore, double-bore, and multi-bore.

2. Square & rectangular shapes
The square and rectangular shape is another ordinary one in the ceramic tubes family.

3. Customized shapes
We can fabricate many ceramic tubing pieces in customized shapes, including Dee shapes and tubes with flanges, slots, and grooves. 

1. Fine Grinding
Both external and internal grinding can be conducted in-house. The dimensional tolerance of diameters can reach ±0.005mm.

2. CNC Machining
Many detailed geometries of ceramic components must be CNC machined and the dimensional tolerance to be ±0.002mm.

3. Drilling and Tapping
Multi-holes at profile and thread are not easy to mold directly, so a drilling and tapping process is needed to complete custom designs.  

1. Polishing
All internal & external surfaces of technical ceramic tubing can be polished in-house to the mirror surface.

2. Glazing
Glass glaze is applied to the appearance of ceramic pipes to enhance the electrical insulation and surface quality of ceramic tubes.

3. Metallizing
It’s an advanced surface treatment. A metallic layer is deposited onto the designated section of ceramic tubes, and then it can be directly brazed with various metal components.

1.High temperature ceramics: Due to their excellent ceramic heat resistance, ceramic tubes are often used as thermal ceramic protection tubes, furnace tubes, and steel smelting industries.

2. Electrical Insulation: They are always used as ceramic tube insulators in industrial ovens, battery systems, and motor drive systems.

3. Superb thermal shock resistance:
Silicon nitride (SiAlON) ceramic tubes will not deform, expand, or crack at rapid, instantaneous changes in heat and cold conditions. So, SiAlon Ceramic tubes are usually used as protective shields in thermocouples.

The IQC, IPQC, OQC, and CPK systems are introduced into our production lines and also are conducted strictly.   Apart from the dimensional inspection, also 100% visual checking are carried out before shipping, all ceramic tubes that flow to customers need to be inspected rigorously.