Refractory Bricks
Cordierite firebricks

Cordierite firebricks

High aluminum cordierite firebricks, mullite cordierite firebricks and mullite corundum firebricks are mainly made from high aluminum raw materials with some cordierite or mullite so they have the most advantage of high compression strength and high thermal shock resistance which are ideal for the ceramic burning machine of hot blast stove or applications in other insulation or firing parts of kilns.

Brands

Items

High Al-cordierite firebricks

Mullite-cordierite firebricks

Mullite-corundum firebricks



Chemical composition %

Al2O3 % not less than

55

60

85-90



Fe2O3 % not more than

1.5

1.0

0.5


BD g/cm3 not less than

2.5

2.6

2.8


Refractoriness not less than

1730

1770



AP % not more than

22

20

20


0.2MPa RUL not less than

1450

1550

1700


CCS Mpa not less than

40

55

60


PLC %

1400×2h 0-0.3

1400×2h ±0.1

1600×2h ±0.1


TSR (1100 water-cooling) not less than

40

55

10



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