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Chromium Brick

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It is widely used in steel rolling heating furnace wear platform to push tiles, a variety of non-ferrous metal melting furnace.

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  • Product introduction
  • Specification
  • Inquiry
The Products are produced by corundum and chromium oxide as main materials, formed from casting, after being treated under high temperature.
It is widely used in steel rolling heating furnace wear platform to push tiles, a variety of non-ferrous metal melting furnace. 
It has high hot strength and good wear resistance. 

Characteristics of our corundum brick 

1) After shaping and sintering, cutting and grinding processing are done, drilling is necessary according to brick drawings. 
2) Little impurities of iron and alkali metal 
3) High temperature resistance 
4) uniform structure and high cold crushing strength 
5) Good thermal shock resistance, stable volume, good insulation performance in high temperature 
6) Low thermal conductivity
Item Chrome Corundum Brick
JK-60 JK-30 JK-12
Cr2O3 % ≥60 ≥30 ≥12
Al2O3 % ≤38 ≤68 ≤80
Fe2O3 % ≤0.2 ≤0.2 ≤0.5
Apparent porosity % ≤14 ≤16 ≤18
Bulk density g/cm3 ≥3.63 ≥3.53 ≥3.3
Cold crushing strength Mpa ≥130 ≥130 ≥120
Refractoriness under load (0.2MPa,0.6%) ℃ ≥1700 ≥1700 ≥1700
Permanent linear change rate(1600℃*3h) % ±0.2 ±0.2 ±0.2

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