
| 42-45% | 13-16% | 13-14% | 0.022 | 10-12% | 10-11% | 0.045 | 0.045 | 13-14% | <1% |
| 1 | Specific gravity | 2.9-3.05gm/cc |
| 2 | Compressive strength | 3000-4500kg per sq cm(min) |
| 3 | Bending strength | 300kg per sq cm(min) |
| 4 | Water Absorption | 0 |
| 5 | Solubility in Acids | 0.006 |
| 6 | Hardness | 8(MIN.)Moh Scale |
| 7 | Modules of elasticity | 11.1×104N/mm2 |
| 8 | Expansion coefficient (room temperature to 60°C) | 0.75×10-5/K |
| 9 | Thermal Conductivity | 1.15W/mk |
| 10 | Special Heat Capacity | 0.8kj/Kg.K |
| 11 | Highest Temperature For application | 350°C |