Symbol | Granularity [mm] |
Max. working temp.[oC] |
Min. common refractoriness [sP] |
Al2O3 content [%] |
ZSz1 |
0-1 | 900-1350 | 171 | 33 |
ZSz2 |
0-2 | 900-1300 | 169 | 28 |