Technical data
| Properties | Unit | Classification | |
|---|---|---|---|
| A30S | A40S | ||
| Bulk density, min. | g/cm³ | 2 | 2.1 |
| Apparent porosity, max. | % | 20 | 19 |
| Cold crushing strength, min. | MPa | 32 | 35 |
| Refractoriness, min. | sP | 169 | 171 |
| Resistance to abrasion | g/cm³ | 0.2 | 0.17 |
| Chemical consist, Al₂O₃, min. | % | 32 | 38 |
| Chemical consist, Fe₂O₃, max. | % | 2.5 | 2 |