High Alumina

Product Description

• Alumina Content: Typically greater than
  

  48%48 %

  48%
  

  Al2O3cap A l sub 2 cap O sub 3

  23
  , with higher grades (e.g.,
  

  75%75 %

  75%
  ) offering better thermal stability and corrosion resistance.
• Impurities: Low levels of impurities are critical, especially in high-purity grades where the sum of
  

  SiO2+TiO2+Fe2O3+MgOcap S i cap O sub 2 plus cap T i cap O sub 2 plus cap F e sub 2 cap O sub 3 plus cap M g cap O

  2+2+23+
  may be below
  

  2%2 %

  2%
  .
• Refractoriness: The ability to withstand high temperatures, often specified as a minimum temperature (e.g.,
  

  1500C1500 raised to the composed with power cap C

  1500
  ).
• Strength: Compressive or other mechanical strengths, such as a minimum of
  

  40N/mm240 cap N / m m squared

  40/2
  .
• Density: A specific range for bulk density is often included.
• Porosity: Sometimes specified as a maximum to ensure density and performance.