BFA Grits Brown Corundum 24# for copper clad laminate circuit boards
PRODUCT: Brown Fused Alumina
NAME: Brown Fused Alumina
Al2O3 CONTENT: 95.0% MIN.
DESCRIPTION:
Brown Fused Alumina is made from Calcined Bauxite. It is a hard and tough material, used in manufacturing of grinding wheels (both vitrified and resin bonded) and coated products. These grains are also used for shot blasting and as polishing media. Refractory grade BFA is used as a raw material in the manufacture of high alumina refractory.
TYPICAL CHEMICAL ANALISIS [%]:
| Al2O3 | Fe2O3 | SiO2 | FeO | MgO | CaO | TiO2 | Na2O | K2O | LOI |
| 95.0 | 0.35 | 1.40 | / | / | / | 3.00 | / | / | < 0.09 |
PHYSICAL PROPERTIES
| Specific Weight | Hardness | Crystal form | Melting Point |
| 3.96 g/ cm3 | 9.0Mohs scale | Alpha Alumina | 2050 |
PARTICLE SIZE DISTRIBUTION
| #24 | +1180um | 0 | +850um | ≤25 | +710um | ≥45 | +710+600um | ≥65 | -500um | ≤3 |
| #30 | +1000um | 0 | +710um | ≤25 | +600um | ≥45 | +600+500um | ≥65 | -425um | ≤3 |
| #36 | +850um | 0 | +600um | ≤25 | +500um | ≥45 | +500+425um | ≥65 | -355um | ≤3 |
MOSTLY USED AS :
– refractory
– blasting,grinding,polishing,rust removing,surface treatment etc
– grinding wheels
– whetstone,polishing pad etc abrasive tools
