Brownish alumina A
Product explanations
This is made of crushed and size-selected alumina ore refined by melting or sintering with an electric furnace. Featuring high abrasiveness, this abrasive is suited for grinding of scales on steel products or special alloy work pieces and providing a satin surface finish.
＊Unit of particle size for abrasives: The unit of particle size for the abrasive is currently not uniform. Therefore, be careful that the unit depends on the abrasive type.
＊Picture color and actual color may differ depending on the particle size.
＊The Mohs hardness has 10 scales.
Product details
- hardness: Mohs
- appro x 9.0
- Minimum order quantity(kg)
- 20kg
- package
- Bag
Page number : abr19
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Page number : abr19
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| particle size(μm) | 1180～1700μm | 1000～1400μm | 850～1180μm | 600～850μm | 500～710μm |
| Nominal number | 36 | 46 | 54 | 60 | 80 |
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| particle size(μm) | 425～600μm | 300～425μm | 250～355μm | 212～300μm | 150～212μm |
| Nominal number | 90 | 100 | 120 | 150 | 180 |
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| particle size(μm) | 125～180μm | 106～150μm | 90～125μm | 63～106μm | 53～90μm |
| Nominal number | 220 | 240 | 280 | 320 | 360 |
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| particle size(μm) | 45～75μm | 40～103μm | 33～87μm | 27～74μm | 23～66μm |
| Nominal number | 400 | 500 | 600 | 700 | 800 |
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| particle size(μm) | 20～58μm | 16～50μm | 13～43μm | 11～37μm | 9～31μm |
| Nominal number | 1000 | 1200 | 1500 | 2000 | 2500 |
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| particle size(μm) | 7～27μm | 5.5～23μm | 4.5～20μm | 4～17μm | 3～14μm |
| Nominal number | 3000 | 4000 |
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| particle size(μm) | 2～11μm | 1.3～8μm |