What Are The Differences Between White And Brown Corundum? Is White Corundum The Same Hardness As Brown Corundum?

White corundum and brown corundum belong to a kind of corundum, can be used as abrasive, but different application fields choose different corundum. What are the differences between brown and white corundum? It is said that the hardness of white corundum and brown corundum is very high, so which one of their two products is high in hardness? Here is a small series for everyone to analyze:
Brown corundum abrasive, the particle is composed of single crystal, has a good multi-edge cutting edge, high hardness and high toughness, grinding ability, grinding less heat, the disadvantage is that the production cost is high, the output is low, so the price is high. White corundum abrasive is also a crystalline compound with slightly lower hardness, finer crystal size and good wear resistance.

The hardness of white corundum abrasive is slightly higher than that of brown corundum, but the toughness is poor. It is easy to cut into the workpiece when grinding, good self-sharpness, less heat, strong grinding ability and high efficiency. Chrome corundum abrasives are its derivatives.

Brown corundum abrasive is mainly composed of Al2O3, moderate hardness, toughness, sharp particles, relatively low price, suitable for processing high tensile strength metal. Microcrystalline white corundum abrasive and black corundum abrasive are their derivatives. Due to the low hardness of white corundum, not easy to crack, can maintain a round and blunt shape, mainly by the impact on the blade, to move, so in this case the grinding effect of the blade is very weak, more local cracks on the grinding surface, there are slight scratches.

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