Technical data
| Properties | Unit | Classification | ||
|---|---|---|---|---|
| NGB145 | NGB155 | TMK44 | ||
| Temperature of application, max. | ℃ | 1450 | 1550 | 1450 |
| Refractoriness, min. | sP | 154 | 161 | 169 |
| Cold crushing strength after drying at 110 ℃, min. | MPa | 25 | 25 | 25 |
| Cold crushing strength after firing at the temperature limit of application for 2 h, min. | MPa | 20 | 20 | 20 |
| Chemical consist, Al₂O₃, min. | % | 45 | 45 | 44 |
| Linear contraction or expansion of mix at temperature of max. application | % | -1.5 | -1.5 | -1.5 |
| Granulometry | mm | 0 - 5 | 0 - 5 | 0 - 2 |