Product: Black corundum
Raw material: Bauxite
Color: Black
Usage: Stainless steel sandblasting
Common size: 16 24 36 46 60 80 120 mesh etc.
Packing: 25kg/bag
China supplir Black corundum for steel sandblasting
Description
Black corundum, also known as black fused alumina, is a kind of gray-black crystal with α-Al2O3 and iron spinel as the main ore phase . Black corundum are produced by melting aluminum bauxite in an electric arc furnace in a high temperature. For its high hardness and toughness characteristic, t can be used for mental like stainless steel sandblasting.
Features of Black corundum
- Higher hardness
- Strong mechanical strength
- Sharp, brittle
- Low expansion coefficient
- Good electric conductivity
Application of Black corundum
- Mental polishing
- Stainless steel sandblasting
Specification of Black Corundum
| Specifications | Main Chemical Composition % | ||
| Al2O3 | Fe2O3 | SiO2 | |
| BA—1 | 81—85 | 9—11 | ≤8 |
| BA—2 | 75—80 | 10—12 | ≤10 |
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