Checker Brick

Features:High Aluminum checker brick include high refractoriness, large volume density, high intensity and high refractoriness under load. They also have good creeping in high-temperature, excellent regenerative capability.

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Features:High Aluminum checker brick include high refractoriness, large volume density, high intensity and high refractoriness under load. They also have good creeping in high-temperature, excellent regenerative capability.
 

Parameter:

 

 

 

Index clay checke high alumina checke low creep checke
Al2O3% ≥42 ≥65 ≥75
Fe2O3% ≤2.2 ≤2.0 ≤1.9
Refractoriness ≥1790 ≥1790 ≥1790
(%) Apparent Porosity ≤24 ≤22 ≤20
 (g/cm3) Bulk density ≥2.25 ≥2.35 ≥2.45
(MPa)Cold Crushing Strength ≥40 ≥45 ≥55
Refractoriness under load (0.2MPa) ℃ ≥1400 ≥1490 ≥1500
linear change rate on reheating (1350℃ x2h)0.2~-0.2 (1450℃ x2h)0.2~-0.2 (1450℃ x3h)0.1~-0.1

 

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