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Refractories for Industrial Furnace

  • Mullite Insulating brick
  • Mullite Insulating brick
  • Mullite Insulating brick
Mullite Insulating brickMullite Insulating brickMullite Insulating brick

Mullite Insulating brick

  • Product description: Mullite brick has the advantages of stable volume, excellent thermal stability, high intensity, low thermal conductivity.
  • INQUIRY

This series of mullite bricks are made from high purity raw materials by unique techniques, thus largely weakens bad effects of impurities and structure shortage on mullite brick performance. Same as the series of High Alumina Poly Light Insulation Bricks, this series of mullite bricks are also an ideal energy saving product and are widely used for lining and heat insulation layer of industrial furnaces and kilns in metallurgy, machinery, ceramic, chemical industry, and so on. While being used for furnace lining, they are hardly eroded by melting liquid.

Advantages

Mullite brick has the advantages of stable volume, excellent thermal stability, high intensity, low thermal conductivity.

Physical and chemical indexes

Brand

ZJM130-1

ZJM130-2

ZJM130-3

ZJM140-1

ZJM140-2

ZJM140-3

ZJM150-1

ZJM150-2

Bulk density, g/cm³≤

0.6

0.8

1.0

0.6

0.8

1.0

1.0

1.2

Cold crushing strength, MPa ≥

1.5

2.5

4.2

1.5

3.2

4,.0

4.0

5.0

Thermal shock stability (1100 water cooling) times ≥

10

20

20

10

20

20

20

20

Reheat linear change ≤1% (×h)

1300×12

1300×12

1300×12

1400×12

1400×12

1400×12

1500×12

1500×12

Thermal conductivity 350±25 (W/m·k) ≤

0.20

0.23

0.22

0.20

0.25

0.33

0.35

0.40

Al2O3, %≥

48

49

50

55

57

57

60

67

Fe2O3, %≤

0.9

0.9

0.9

0.8

0.8

0.8

0.7

0.6