65% High Alumina Refractory Brick Light Yellow Neat Appearance High Softening Point

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Material: High Alumian Bauxite Size: 230*114*65 Mm
Certificate: ISO9001 CE Al2O3: 65%
Color: Light Yellow

65% High Alumina Refractory Brick Light Yellow Neat Appearance

 

Al2O3 (%)

 

≥60 ≥70 ≥75 78-80

SIO2 (%)

 

32 22 20 ≥18

Fe2O3 (%)

 

≤1.7 ≤2.0 ≤1.8 ≤1.8

Na2O+K2O(%)

 

<2.3 <2.0 <1.2  

Refractoriness

 

1790 >1770 >1790 ≥1790

refractoriness under load 0.2mpa(°C)

 

1450 >1510 >1520 ≥1520

Porosity (%)

 

22 <22 <21 20

Bulk density(g/cm3)

 

2.33 2.43-2.48 2.45-2.55 2.55

Cold Cushing strength (Mpa)

 

≥45 ≥50 ≥54 ≥60

Thermal expansion at 1000°C (%)

 

≤0.3 ≤0.3 ≤0.3 ≤0.3

Reheating shrinking change(%) 1500°CX24h

 

-0.3 -0.3 -0.3 -0.3

 

 

Features:

Resistance to High temperature, Resistance to erosion, resistance to abrasion;

 

Excellent compression strength;

 

Resistance to acid and alkali;

 

Excellent heat stability.

 

Application

 

The high alumina bricks are widely applied to industrial furnace, glass furnace, chemical industrial furnace, utility industry furnace lining, smelting furnace, and heat insulation ventilation wall.

 

 

 

 

Packaging & Shipping
 
65% High Alumina Refractory Brick Light Yellow Neat Appearance High Softening Point