Magnesia, magnesia chrome and chrome magnesia mortars
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Description
| Index item | Specification standard | ||
| MPV | MPKHV | MKHPV | |
| Technical specification no. | 14-8-147-75 | ||
| Mass fraction of burning substance，%， | |||
| MgO | ＞80 | ＞ 70 | ＞ 55 |
| Cr2O3, ＞ | 4 | 8 | 15 |
| CaO, ＜ | 3 | 3 | 3 |
| SiO2, ＜ | 3 | 3 | 3 |
| Water content，%，＜ | 2 | 2 | 2 |
| loss on ignition，%，＜ | 0,8 | 0,3 | 1,0 |
| Granularity，%，passing the screen： | |||
| №5, ＞ | 99 | 99 | 99 |
| №0063, ＞ | 45 | 85 | 45 |
| Usage | Used in the vacuum treatment device for steel outside the furnaces | ||
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