Lightweight refractory brick, called mulite, is made of refractory materials and high-purity powders. Organic fillers are also used during the production process. Bricks are vacuum-compressed and then sintered at high temperatures. Made of the highest quality raw materials. Thermal resistance of mulit bricks is, depending on the type: 1300°C, 1400°C, 1500°C, 1550°C, 1600°C. They are mainly used as a masonry and a rear wall in all kinds of furnaces in the metallurgical, petrochemical, ceramic, machinery or construction industries. They are easy to process and can be cut to size.
- resistance to continuous load at 20°C. 1300 – 1600°C
- low conductivity and capacity
- adaptation to fire layer operation
- compressive and stretching strength
- heat shock resistance
- ease of processing – the possibility of cutting to size – uniform density, dimensional stability.
|Brick species||JM 23||JM 26||JM 28||JM 30||JM 32|
|Specific weight, density||600 kg/m3||800 kg/m3||900 kg/m3||1000 kg/m3||1100 kg/m3|
|Tensile resistance||1,1 MPa||2,4 MPa||3,3 MPa||4,0 MPa||4,8 MPa|
|Thermal expansion (1000°C)||0,5%||0,5%||0,55%||0,58%||0,6%|
|Thermal conductivity λ (350°C)||0,16 W/mk||0,25 W/mk||0,33 W/mk||0,39 W/mk||0,43 W/mk|
|Dimensions of bricks||65 x 114 x 230, 76 x 114 x 230, 76 x 230 x 350 mm|