Semi-friable Fused Alumina
Semi-friable Fused Alumina is one of the high-end corundum series new products.It is another new type abrasive grains with wide range of applications after A,WA,ZA and PA.It has its own unique grinding performance.
Chemical composition %
| Al2O3 | TiO2 | SiO2 | Fe2O3 | CaO+MgO |
| 97.5-98.5% | 1.2-1.6% | ≤0.3% | ≤0.15% | ≤0.2% |
Physical Properties
| Crystal form | Trigonal crystal |
| True density | ≥3.88g/cm3 |
| Knoop Hardness | 2000-2200kg/mm2 |
| Mohs Hardness | 9.0 |
| Apparent porosity | ≤4.0% |
| Melting Point | 2050°C |
| Refractoriness | ≥1850°C |
| Specific heat | (Cal/g.°C) 100C 0.183 0.217 |
| Coefficient of linear expansion | 7-9(25-1500°C) |
| Color | Grayish black |
Advantages of Semi-friable Fused Alumina
With reasonable toughness and excellent self-sharpening performance,Semi-friable Fused Alumina can be used for making ceramic abrasive tools,resin abrasive tools and coated abrasives.The bonded abrasives made by FA are feathers of high durability,excellent self-sharpening performance and retainability.When processing some work-pieces under the same conditions,the surface quality of the work-pieces,processing efficiency durability of the abrasive tools are all much better than those of abrasive tools made by A(brown fused alumina),WA(white fused alumina),PA(Pink fused alumina) and SA(single crystal aluminum oxide).Compared to A or WA grinding wheels,the work-pieces processed by FA grinding wheels are double for every dressing.And compared to PA and SA,it can improve 10-30%,or reach their same result.
Main applications
—High-grade ceramics,ceramic abrasive tools
—Resin abrasive tools
–Bonded abrasive tools
–Coated abrasive tools
–Grinding hard wood,plastic coating and paint etc
Available Sizes:
F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 F240
Packaging
25kgs pvc bags+1mt big bag
