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产品名称:HIGH ALUMINA BRICK HA65
Features
1. Low bulk density, low thermal conductivity, good thermal insulation performance.
2. Refractory category allow direct contact of fire, suitable ofr various atmosphere
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely

Typical Applications
1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace
Standard sizing: 230 x 114 x 65 mm others up to the client

Item

Standard

Al2O3(%)

≥65

SIO2(%)

≤27

Fe2O3(%)

≤1.8

Na2O+K2O(%)

<2.3

Refractoriness

1790

refractoriness under load 0.2mpa(ºC)

1450

Porosity(%)

19-22

Bulk density(g/cm3)

2.35

Cold cushing strength (mpa)

≥50

Thermal expansion at 1000ºC(%)

≤0.3

Reheating shrinkingchange(%) 1500ºCX24h

+/-0.3

Tolerance -  Technical Instruction for Bricks Sampling 
 

1.  DIMENSIONAL CONTROL
1 - 100 mm: +/- 1 mm;   101 - 200 mm: +/-2 mm;   201 - 300 mm:  +/- 3 mm;
           Equal Dimension Difference: 1 mm Max.;  
Taper: +/- 1 mm Max.
              Warpage: +/- 1 mm Max. ( from diagonal line )

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脚注信息
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