• Semi-Friable-Fused-Alumina30#-(13)
  • Semi-Friable Fused Alumina001
  • Semi-Friable Fused Alumina002
  • Semi-Friable Fused Alumina003

Semi-Friable Fused Alumina Widely Working On Heat Sensitive Steel, Alloy, Bearing Steel, Tool Steel, Cast Iron, Various Non-Ferrous Metals And Stainless Steel

Short Description

Semi-Friable Fused Alumina is produced in electric arc furnace by controlling smelting process precisely and solidification slowly. The decreased TiO2 content and increased Al2O3 content provide the grains with medium toughness and hardness between white fused alumina and brown fused alumina, this is why it’s called semi-friable fused alumina. It has excellent self-sharpening property, which brings grinding tools made of it with high grinding efficiency, long service life, sharp grinding and not easy to burn workpiece.


Semi-Friable Fused Alumina is used for resin and vitrified grinding wheels with high surface finish requirements, widely working on heat sensitive steel, alloy, bearing steel, tool steel, cast iron, various non-ferrous metals and stainless steel. The abrasive tools made of it aredurable, self sharpening and stable. For rough grinding, it can improve the processing efficiency. For precision grinding, it can improve the surface quality of workpiece.






Chemical Composition

Al2O3 % 96.50min 97.10
SiO2 % 1.00max 0.50
Fe2O3 % 0.30max 0.17
TiO2 % 1.40-1.80 1.52
Compressive Strength N 26min
Toughness % 90.5
Melting point 2050
Refractoriness 1850
True density g/cm3 3.88min
Mohs hardness --- 9.00min
Abrasive Grade FEPA F12-F220
Colour --- Grey