periclase plates
|
Name of indexes |
PPZ-93 | PPА-92 | PPZА-89 |
|
Content, % |
|||
| MgO, not less |
93 |
92 |
89 |
| ZrO2, within limits |
1-2 |
- |
1-2 |
| Al2O3, within limits |
- |
3-4 |
3-4 |
| Fe2O3, not more |
0,6 |
0,6 |
0,6 |
| SiO2, not more |
1,5 |
- |
1,5 |
|
Open porosity, %, not more |
|||
| Before impregnation |
14 |
14 |
15 |
| After impregnation |
10 |
10 |
10 |
| CCS, n/mm2, not less |
100 |
100 |
80 |
| Cross-breaking strength, Н/мм2, not less |
20 |
||