Junty Industries,Ltd.    
Home
Products
Materials
Service
Stocks
Contact Us
 
Seal Face Seal Ring Bushing bearing Washers shaft sleeves spray nozzles valve seats Rotary unions slip cast sic
Seal Faces/Rings
Bushings/Washers
Slip cast SIC products
Mechanical Packing
Rotary unions
Spray Nozzles
Investment casting
Metal parts & Springs
O-Rings
 
silicon carbide SIC tungsten carbide TC carbon graphite ceramic alumina Al2O3 Zirconium Dioxide
Silicon Carbide
Tungsten Carbide
Carbon Graphite
Aluminum Oxide Ceramic
Zirconia
Elastomers
Stainless Steel
PTFE
   
 
Junty Industries,Ltd. quality management system by Lloyds' register
 
Materials
Junty > Material > Aluminum Oxide Ceramic
 
            
mechinical seal face seal ring Aluminum Oxide Ceramic alumina Al2O3
Alumina is historically the most cost-effective and widely used engineering ceramic. It has a good combination of properties:

· Good hardness and wear resistance
· High strength and stiffness
· Good thermal stability
· Almost chemically inert

Alumina can be produced in purity ranges from 95% up to 99.5% (available in ivory color), for various applications.

mechinical seal face seal ring Aluminum Oxide Ceramic alumina Al2O3
   
Parameter Unit 99.5% Al2O3 99% Al2O3
Density g/cm3 3.9 3.88
Hardness Rockwell HRA 86 HRA 85
Compressive Strength MPa 2100 2000
Flexural Strength MPa 350 310
Elastic Modulus GPa 360 330
Thermal Conductivity W / m K 29 26
Coefficient of Thermal Expansion 1 x 10 -6 / K 8.2 8.2
 
Copyright Junty Industries,Ltd. All Rights Reserved