Item |
Index |
||||
International code name |
SK35 |
SK36 |
SK37 |
SK38 |
SK40 |
Chinese code name |
LZ-48 |
LZ-55 |
LZ-65 |
LZ-75 |
LZ-80 |
Al2O3 min % |
48 |
55 |
65 |
75 |
80 |
Fe2O3 max % |
2 |
2 |
2 |
2 |
2 |
Refractoriness C min. |
1750 |
1770 |
1790 |
1790 |
1790 |
Refractoriness under Load C min. |
1420 |
1470 |
1500 |
1520 |
1530 |
Permanent Linear Change % |
1450 C×2h |
1500 C×2h |
1500 C×2h |
1500 C×2h |
1500 C×2h |
Apparent Porosity max. % |
22 |
22 |
23 |
23 |
21 |
Cold Crushing Strength mim. |
39 |
44 |
49 |
54 |
65 |