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| Item | MgO %≥ | Al2O3 %≥ | Sio2 %≤ | A.P %
B.≤ |
B.D g/cm3 ≥ | C.C.S Mpa ≥ | 0.2Mpa R.U.L ℃≥ | T.S.R (950℃)times ≥ | （1000℃）
W/m.K≤ |
Therm.Exp(1400℃)% | |
| Low thermal magnesia-alumina spinel bricks | |||||||||||
| LMA-85A | 85 | 9 | 1.0 | 18 | 2.95 | 45 | 1700 | 120 | 3.0 | 1.2 | |
| LMA-85B | 82 | 9 | 2.0 | 18 | 2.90 | 40 | 1700 | 100 | |||
| LMA-85C | 80 | 9 | 3.0 | 19 | 2.85 | 40 | 1650 | 100 | 2.9 | ||
| LMA-93A | 93 | 5 | 1.0 | 18 | 2.95 | 45 | 1700 | 100 | 3.8 | 1.5 | |
| LMA-93B | 90 | 5 | 2.0 | 18 | 2.9 | 40 | 1700 | 80 | |||
| Magnesia-alumina spinel composite bricks | |||||||||||
| Working lining | For LMA-85A, LMA-85B, LMA-85C low thermal magnesia-alumina spinel bricks | ||||||||||
| Thermal insulating layer | 55 | / | 30 | 24 | 2.60 | 30 | 1600 | / | 2.0 | ||