Alumina ceramic properties

Alumina ceramic is a high-performance ceramic material with alumina (Al₂O₃) as the main component, possessing the following core:

1. High hardness and abrasion resistance

With a Mohs hardness of 9, second only to diamond, and abrasion resistance 266 that of manganese steel.

Suitable for cutting tools, bearings, wear-resistant linings, etc.

2. High-temperature resistance

Can be used for periods at 1600℃, with a short-term temperature resistance of up to 2050℃.

Used for kiln components, thermocou protection tubes, etc.

3. Electrical insulation

With a room temperature resistivity of 10¹⁵Ω·cm and an insulation strength of 15kV/.

Used for circuit boards, spark plugs, etc.

4. Corrosion resistance

Resistant to strong acids, strong bases, and molten metal erosion.

Cical reaction kettles, seals, etc.

5. Mechanical strength

With a flexural strength of 250-500MPa, it remains stable at high temperatures.

Mechanical parts, artificial bones, etc.

6. Other properties

Low density (3.7-3.95g/cm³) lightweight.

Some models can be polished to a surface roughness Ra ≤ 0.4μm.