Magnesia chrome bricks are basic refractory product which’s main crystalline phase is periclase and magnesia chrome spinel. Direct-bonded magnesia chrome brick is made from low impurity chromite and high purity calcined magnesite. Their sintering temperature is above 1700℃.
The main bonding type of direct bonded magnesia chrome brick is direct contact, magnesia and chromite are closely contacted with each other, silicate is expelled to corners. Therefore, this phenomenon is called periclase-periclase and periclase-chromite direct bonding. Compared with ordinary magnesia chrome bricks, direct bonding magnesia chrome bricks have higher purity and higher sintering temperature.
Direct Bonded Magnesia Chrome Bricks Characteristics
Low impurity content and high direct bonding ratio.
Good resistance to so slag resistance.
Excellent high temperature performance and thermal shock resistance.
Refractoriness under load temperature is higher than 1650℃, or higher than 1700℃.
Direct-Bonded Magnesia Chrome Brick Physiochemical Index
|Apparent Porosity %||18||18||18||18|
|Cold Crushing strength Mpa||50||55||55||55|
|Refractoriness under load(0.2Mpa) ℃||1700||1700||1700||1700|
|Thermal expansion rate %1600℃||1.8||1.8||1.8||1.6|
The Manufacturer of Direct Bonded Magnesia Chrome Brick
Rongsheng Direct bonded magnesia chrome bricks are mainly used in rotary cement kiln, steel making electric furnace lining, refinery furnaces, glass kiln and so on. With excellent performance and energy-saving. Various high quality fire bricks for sale in RS Kiln Refractory Company, such as high alumina bricks, fire clay bricks, magnesia bricks, magnesia chrome bricks, insulating fire bricks,etc. Everyone who wants to learn more about magnesia alumina spinel bricks, Email us for getting what you want right now!