Andalusite is a natural crystal materials without calcinationprior to use, high purity and identity is its main features. Asamorphous or amorphous refractory, good performance in adverseconditions, so it was widely used in industry of hightrmperature and High mechanical strength.At present, it is mainlyused in steel industry- stove regenerator checker bricks, furnace,pig iron ladle, ladle, tundish, reheat furnaces.Ceramic industry -heavy industrial use tunnel kiln clay (bricks, roof, clay, pipe),manufacturing sanitary ware, tableware and tile kiln, ceramic kilntechnology. Glass Industry - back to the furnace, feeder,glass box

Specifications:
1/ Al2O3:??????58%   ; SiO2:??????38%  ; Fe2O3:??????0.8%  ; K2O:??????0.077%  ; NaO:??????0.44%  ;LOI:??????0.52%  ; Refractoriness:??????1830

2/ Al2O3:??????57%   ; SiO2:??????40%  ;Fe2O3:??????0.8%   ; K2O:??????0.12%  ; NaO:??????0.52% ; LOI:??????0.52%  ; Refractoriness:??????1790

3/ Al2O3:??????56%   ; SiO2:??????40%  ;Fe2O3:??????1%   ; K2O:??????0.16%  ; NaO:??????0.56% ; LOI:??????0.52%  ; Refractoriness:??????1790

4/Al2O3:??????55%   ; SiO2:??????41%  ;Fe2O3:??????1.2%   ; K2O:??????0.16%  ; NaO:??????0.56% ; LOI:??????0.52%  ; Refractoriness:??????1790