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Brown corundum is made of high-quality bauxite as raw material and is smelted at a high temperature above 2000 degrees in an arc.
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Brown corundum is made of high-quality bauxite as raw material and is smelted at a high temperature above 2000 degrees in an arc. It is tan, has high hardness and high toughness. The abrasives made of it are suitable for grinding carbon steel, malleable cast iron, hard bronze, etc. In addition, it is widely used in refractory materials, chemical additives, precision casting and anti-skid materials.
Chemical composition:
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GB/T2478-1996 CHEMICAL COMPOSITION OF BROWN ALUMINIUM OXIDE |
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Chemical Composition%(by weight) |
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Al2O3 |
TiO2 |
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4#-90# |
94.50-97.00 |
1.50-3.80 |
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100#-180# |
≥93.50 |
1.50-3.80 |
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220#-240# |
≥92.50 |
1.50-3.80 |
Physical properties:
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Basic minerals |
Crystal size um |
True density g/m³ |
Bulk density g/m³ |
Knoop hardness Kg/m㎡ |
|
α- Al2O3 |
300～1200 |
≥3.90 |
1.5～1.95 |
1800～2200 |
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Zibo Jingshan Corundum Co., Ltd.
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Contact: Mr. Zhang
Phone: +86-18653320447
Tel: +86-533-5610339
Address: South of Xizhou Village, Zhaili Town, Zichuan District, Zibo City, Shandong Province, China