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Andalusite refractory brick

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Andalusite refractory brick Low creep High refractoriness under load
High compression strength Good thermal shock resistance
Description

Andalusite refractory brick
Low creep
High refractoriness under load
High compression strength
Good thermal shock resistance
                                                    Andalusite refractory brick
Low creep, High refractoriness under load, High compression strength, Good thermal shock resistance...

Item: HB HD HS DE
Al2O3 % ≥65 ≥53 ≥57 ≥55
Fe2O3 % ≤0.8 ≤1.0 ≤0.8  
TiO2 % ≤0.5 ≤0.6 ≤0.5  
K2O+Na2O % ≤0.6 ≤1.2 ≤0.6 ≤1.2 ≤0.6 ≤1.2 ≤1.0
Impurity % ≤0.7 ≤0.7 ≤0.7  
Apparent porosity ≤20 ≤20 ≤20 ≤24
Bulk density g/cm³ ≥2.45 ≥2.35 ≥2.40 ≥2.40
Cold crushing strength MPa: ≥50 ≥40 ≥40 ≥40
Modulus of rupture MPa: ≥18 ≥15    
Refractoriness under load T0.5≥1520 T0.5≥1350 T0.5≥1470 T2≥1580
     
T2≥1630 T2≥1490 T2≥1580
Creep% (0.2Mpa×50h) 1500×(2050)h 1350×(2050)h 1400×(2050)h 1450×(2050)h
       
≤0.2 ≤0.2 ≤0.2 ≤0.2
Permanent linear change % 1500×4h 1400×4h 1500  
     
±0.2 ±0.2  
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