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SI3N4 bonded SIC brick.
Stable chemical performance
High cold crushing strength
Good thermal shock stability
Good anti corrosion ability
It is mainly used in the production of aluminum,copper, zinc.
It is used as the liner of molten bath or electrobath.
SI3N4 SIC brick has no corrosion with metal aluminum, and has no chemical reaction with cryolite. It is the ideal material for electrobath lining brick.
Item Brand Index | For General Purpose | Light weight silica brick | ||
GZ-95 | GZ-94 | GZ-93 | QG-1.2 | |
SiO2≥ | 95 | 94 | 93 | 91 |
Refractoriness | 1710 | 1710 | 1690 | 1670 |
RUL(0.2 MPa)T1, °C | 1650 | 1640 | 1620 | 1560 |
Apparent Porosity% | ≤22 | ≤23 | ≤25 | ≥45 |
Cold Crushing Strength Mpa | ≥29.4 | ≥24.5 | ≥19.6 | ≥3.5 |
True Density g/cm3 | ≤2.37 | ≤2.38 | ≤2.39 | ≤2.39 |
Bulk Density g/cm3 | ≤1.20 | ≤1.20 | ≤1.20 | ≤1.20 |
Item | Data |
Apparent porosity,% | ≤17 |
Bulk density,g/cm3 | ≥2.6 |
Cold crushing strength,Mpa | ≥150 |
Crushing strength at 1400°c,Mpa | ≥43 |
SiC, % | ≥72 |
Si3N4, % | ≥21 |
Fe2O3, % | ≤1.5 |
Anti-alkaline | Good |
