A superb combination of corrosion resistance, temperature stability and non-conductivity

• Exceptional temperature resistance up to 3000°F (1650°C)
• Outstanding corrosion resistance to acids, solvents, salts, and organics
• Excellent electrical & thermal insulator
• High purity
• Alumina ceramic datasheet

Alumina ceramic washers are one of the most thermally resistant washers available. Due to their outstanding thermal resiustance, alumina ceramic washers are geared for the most demanding high temperature applications. Alumina ceramic washers also have outstanding corrosion resistance and are highly chemically resistant to acids, solvents, and salts. Additionally, alumina ceramic washers find many uses in high voltage applications due to their non-conductive electrical properties.

Alumina ceramic washers are available in both metric and standard sizes. Please contact us if you have any questions about the properties or availability of our ceramic washers.

washers made from customer specified ceramic grades or custom dimensions are available upon request.

Washer Types: Flat Washers

Common Ceramic Grades

Alumina 99.8%

Alumina ceramic or Aluminum oxide (Al₂0₃) is the most common grade of alumina ceramics and is designated as being 99.8% pure. Alumina is most known for high temperature stability and has a usable temperature limit of 3000°F (1650°C). Alumin has the greatest balance of economy, mechanical and thermal properties.

Various other compositions of alumina ceramic are available upon request.

Alumina and Zirconia Properties

Corrosion Resistance of Common Ceramics