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Chrome Corundum Series

Chrome Corundum Series

High Temperature Series

Item Code:A2504

Chrome corundum series, made of Al2O3 mixing with CrO2 or ZrO2 in a certain proportion, is commonly produced with an adoption of special refractory production process.

According to the ingredients, it is usually divided into:
Chrome corundum products;
Chrome-zirconium corundum products;
Sometimes, it is made into composite products with corundum or clayey materials;


It is widely used in wear resistant and wash-out resistant parts in metallurgy, glass, petrochemical and other industries.


The series has advantages of high refractoriness, high strength, excellent thermal shock stability, strong erosion resistance. During furnace working, it also has good abilities of resistant to washing out, abrasion, erosion and spalling.

Physical and Chemical Indicators

No. Item Chrome corundum product Chrome zirconium corundum product
1 Chemical Indicators % Al2O3 ≥85 ≥85
2 CrO2 ≥14 ≥85
3 ZrO3   ≥5
4 AP (%) ≤16 ≤15
5 BD (g/cm3) ≥3 ≥3.1
6 Cold crushing strength(MPa) ≥120 ≥120
7 Refractoriness under load 0. 2. Mpa (℃) ≥1650 ≥1700
8 Thermal shock stabilitywater cooling ≥15 ≥15
9 Part used Wearing resistance layer
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