Mulit bricks

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.

Properties:

  • 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.
Technical parameters
Brick species JM 23 JM 26 JM 28 JM 30 JM 32
Classification temperature 1300°C 1400°C 1500°C 1550°C 1600°C
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
Chemical analysis Al2O3

Fe2O3

min.
38%
max
1,0%
min.
54%
max
0,8%
min.
65%
max
0,7%
min.
73%
max
0,6%
min.
79%
max
0,5%
Dimensions of bricks 65 x 114 x 230, 76 x 114 x 230, 76 x 230 x 350 mm