High alumina brick is a kind of refractories, the main composition of this refractory brick is Al2O3.Aluminum trioxide (Al2O3) containing more than 48% aluminum silicate refractories.
Laurel high alumina bricks are produced with selected bauxite chamotte by advanced process and strict quality control. The main mineral components are corundum and mullite phases. It features excellent high temperature mechanics and chemical corrosion resistance.
Item | HA60 | HA70 | HA75 | HA80 |
AL2O3(%) | ≥60 | ≥70 | ≥75 | ≥80 |
SIO2(%) | 32 | 22 | 20 | ≥18 |
Fe2O3(%) | ≤2.5 | ≤2.0 | ≤1.8 | ≤1.8 |
Refractoriness °C | ≥1750 | ≥1770 | ≥1780 | ≥1790 |
Bulk density,g/cm3 | 2.35-2.4 | 2.45-2.5 | 2.5-2.55 | 2.55-2.6 |
Softening temperature under load | ≥1450 | ≥1510 | ≥1520 | ≥1530 |
Apparent porosity,% | ≤24 | ≤23 | ≤22 | ≤21 |
Cold Crushing strength Mpa | ≥45 | ≥50 | ≥54 | ≥60 |
High compressive strength.
Good eroding resistance
Low iron content
high temperature working temperature
Contact: Yulina
Phone: 0086 15063999498
E-mail: info@laurelrefractory.com
Add: 1003, Building 1,No.17 Lianyungang Road,Qingdao,China
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