Refractory Bricks
high strength alkali resistant brick  for cement rotary kiln

high strength alkali resistant brick for cement rotary kiln

Items

RKH

 

Chemical composition(%)

 

Al2O3

25—40

SiO2

65-70

Fe2O3

≤2.0

Refractoriness(°C)

≥1650

Bulk density(g/cm3)

≥2.20

Apparent porosity(%)

≤20

Cold crushing strength(MPa)

≥60

Refractoriness under load(0.2MPa T0.6,°C)

≥1300

Thermal Conductivity(W/m.K)

≤1.28

Thermal shock resistance,time(1100°C,water-cooling)

≥20

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