Aluminum Oxide And Silicon Carbide suppliers

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Black silicon carbide is manufacturered at high temperature in an electric resistance type arc furnace with quarts sand and petroleum coke as its main raw materials .Its hardness is more than fused alumina but less than synthetic diamond. Mechanical intensity of it is higher than fused alumina .It is brittle and sharp has electrical and heat conductivity in some degree. Abrasives made of it are suitable for working on cast iron, non-ferrous metal, rock,  leather, rubber, etc. It is also broadly used as refractory material and metallurgical additive.
Chemical Composition(%) --per GB/T2480-1996
Grit Size SiC FC Fe2O3
F12-F90 98.50 <0.20 0.60
F100-F150 98.50 <0.30 0.80
F180-F220 97.00 <0.30 1.20
F230-F400 96.00 <0.40 1.20
F500-F800 95.00 <0.40 1.20
F1000-F1200 93.00 <0.50 1.20
Partical Size
Lumps: 0-20mm, 0-50mm.
Grains: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 0-5mm, 0-10mm, 1-10mm, etc.
7/14, 14/30, 36/70, etc.
-100mesh, -200mesh, -325mesh, etc.
Grits: F12-90, F100-240.
Micropowder : F 280-600.
* Note: the size can be based on customer’s requirement.Aluminum Oxide And Silicon Carbide suppliers

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