Alumina Purities ranging from 60% up to 99.8%

Aluminum Oxide, Al2O3
High Purity Alumina is the most cost effective and widely used material in the family of engineering ceramics. The raw materials from which this high performance pure grade ceramic is made are readily available and reasonably priced, resulting in good value for the cost in fabricated alumina Tubes, Rods, Insulators and machined shapes. With an excellent combination of properties handling thermal shock and mechanical shock, it is no surprise that fine grain technical grade alumina has a very wide range of applications.

Holding large stocks at all times we strive to give a excellent service and as well as our normal range of ceramics we are a stocking distributor for Haldenwanger Technical Ceramics with products such as Alsint, Pythagoras , Sillimantin

Key Properties

  60% Al2O3 – Refractoriness up to 1400°C.
  99.7% to 99.8% Al2O3 – Refractoriness up to 1700°C.
  Hard, wear-resistant
  Excellent dielectric properties from DC
to GHz frequencies
  Resists strong acid and alkali attack at elevated
temperatures
  Good thermal conductivity
  Excellent size and shape capability
  High strength and stiffness

Applications

  Furnace applications
  Thermocouples and sensors
  Wear applications, pads, tubes & linings
  Pump parts
  High voltage electrical substrates & insulation
  Thread guides
  Ballistic armour
  Feedthroughs
  Papermaking guides & foils etc.
  Seal rings & valves (sliding contact)
  Laser cavities
  Grinding media
  Thermal instrument parts