High Alumina Brick for refractory kiln
1.Made by bauxite clinker and binder through Crushing,Mixing,Shaping,Drying and high temperature Sintering.
2.Al2O3 content is 48%-80%,main mineral components are corundum and mullite phases.
3.Refractoriness is above 1770°C,refractoriness under load is 1420-1550°C.
4.Working temperature:1350°C -1650°C.
Other name: Al2O3 Alumina Brick SK40
Model Number: SK35 SK36 SK37 SK38 SK40
Certification: ISO
Minimum Order Quantity: 10
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High Alumina brick
High alumina brick introduction
1.Made by bauxite clinker and binder through Crushing,Mixing,Shaping,Drying and high temperature Sintering.
2.Al2O3 content is 48%-80%,main mineral components are corundum and mullite phases.
3.Refractoriness is above 1770°C,refractoriness under load is 1420-1550°C.
4.Working temperature:1350°C -1650°C.
High alumina brick physical and chemical index
International code name | SK35 | SK36 | SK37 | SK38 | SK40 |
Al2O3/% | ≥48 | ≥55 | ≥65 | ≥75 | ≥80 |
Fe2O3/% | ≤2 | ≤2 | ≤2 | ≤2 | ≤2 |
Refractoriness | ≥1750 °C | ≥1770 °C | ≥1790 °C | ≥1790 °C | ≥1790 °C |
Apparent porosity | ≤22% | ≤22% | ≤23% | ≤23% | ≤21% |
Cold crushing strength | ≥39Mpa | ≥44Mpa | ≥49Mpa | ≥54Mpa | ≥65Mpa |
Refractoriness under load (0.2MPa) | ≥1420 °C | ≥1470°C | ≥1500 °C | ≥1520 °C | ≥1530 °C |
Reheating Linear Change (1500°C 2h) % | +0.1~ -0.4
*1450°C | +0.1~ -0.4 | +0.1~ -0.4 | +0.1~ -0.4 | +0.1~ -0.4 |
High alumina brick features
1.Excellent strength at ambient and elevated temperatures.
2.High compressive strength.
3.Very low levels of iron and other impurities.
4.Lightweight and energy-efficient.
5.Lower heat storage than denser refractory.
6.Heats quickly and economically to operating temperature.
High alumina brick application
High alulmina can be used in:
1.Nonferrous Metal Furnace
2. Rotary & Shaft Kiln
3. Various Incinerator
4. Reheating Furnace
5. Permanent Lining For EAF Ladle
6. General Industrial Furnace etc.
