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High alumina bricks: among the refractory materials produced with aluminum-silicon raw materials,Al203The main components of the bricks are high alumina bricks, mullite bricks and corundum bricks.
230*114*65mm
82
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Product Description
Corundum bricks are also called zirconium-containing re-sintered zirconium corundum bricks.
Zirconium-containing re-sintered zirconium corundum bricks contain zirconium% over 25 and the softness is greater than\" 1680 degrees
Sintered zirconium corundum bricks are highly resistant to erosion.The characteristics are: corrosion resistance, good erosion resistance, good thermal stability, low thermal conductivity, uniform structure and uniform density.It is widely used in steelmaking furnaces, glass melting furnaces, cement rotary furnaces, etc.
characteristic:
The product has high refractoriness, good acid and alkali corrosion resistance, high high temperature strength, good thermal shock stability, excellent high temperature mechanical properties and chemical corrosion resistance, good creep performance, and excellent thermal shock resistance.
project | LZ-80 | LZ-75 | LZ-65 | LZ-55 |
Al2O3% ≥ | 80 | 75 | 65 | 55 |
Refractoriness ℃ ≥ | 1790 | 1790 | 1790 | 1770 |
0.2MPa re-softening start temperature ℃ ≥ | 1530 | 1520 | 1500 | 1470 |
Apparent porosity% ≤ | 22 | 23 | 23 | 22 |
Compressive strength at room temperature MPa ≥ | 70 | 60 | 49 | 44 |
Reheating line change% 1500℃x2h | 0.1 ~ -0.4 | |||
0.1 ~ -0.3 | ||||
