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Refractory radian brick
Refractory radian brick is a kind of special shape brick, especially designed for linings of teeming ladles in steel industry. The material has replaced to be high alumina material conten of 48%~75% from the original fire clay, and refractoriness is up to 1750~1790℃, refractoriness under load can be 1420~1500℃.

Characters:
1.long service life, prolonging 20% compared wit fire clay material.
2.Low specific consumption, and with less impurity
3.Superior steel slags resistance and liquid steel resistance
4.Precise sizes: efficiently decreasing the brick joints about 70%, compared with fire clay bricks

Application: Mainly applied in linings of teeming ladles, also widely used for blast furnace, electric furnace, and casting steel bricks, etc.

 

Technical Data

 

Physical&Chemical  high-alumina brick for ladle ultra-low expansion high-alumina brick
Brand CL-75 LCL-80 LCL-85 LPL-78 LPL-85
AL2O3%   ≥ 75 80 85 78 85
Fe2O3%  ≤ 2.3 2.3 2.3 2 2
Bulk density g/cm3    ≥ 2.65 2.8 2.85 2.75 2.9
Refractoriness ≥ 1790 1790 1790 1790 1800
0.2MPa refractoriness under load (℃) ≥ 1510 1530 1560 1550 1600
linear change after heating% (15000C×2h) 0.1     0 0
    -0.4 -0.4    
Apparent porosity  ≤ 28 21 20 19 20
Cold crushing strength MPa ≥ 39.2 65 65 70 80

 

 


 

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