It takes good quality fused magnesite and fused mgo-cr clinker as raw material, formed under high pressure,burned in high
temperature. It has character of corrosion resistance.
Main using for VOD,AOD,SKF,LF,RH etc. secondary refining furnace.
FM-MA80 | FM-MA85 | FM-MA90 | |
MgO % | 85 | 88 | 90 |
Al2O3 % | 7 | 6.5 | 6.5 |
SiO2 % | 4 | 2.4 | 1.2 |
CaO % | 1.5 | 1.3 | 1.2 |
Fe2O3 % | 1.7 | 1.4 | 1.0 |
Apparent porosity % | 17 | 17 | 17 |
Bulk density (g/cm3) | 2.93 | 2.93 | 2.94 |
Cold crushing strength (MPa) | 50 | 50 | 55 |
Refractoriness under load (°C) | 1610 | 1650 | 1700 |
Thermal shock resistance (times) | 3-6 | 3-6 | 3-6 |