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  • Alumina Bubble Brick
  • Alumina Bubble Brick
  • Alumina Bubble Brick
  • Alumina Bubble Brick

Alumina Bubble Brick

Catalog: Alumina Insulation Brick | 2021-01-28

1. Al2O3: ≥90%
2. Bulk Density: 1.1-1.5g/cm3

√ High porosity
√ Small volume density
√ High mechanical intensity
√ Small thermal conductivity

Product Details

Alumina Bubble Bricks are for applications up to 1700°C. These bricks have excellent insulating properties and high hot strengths. Bubble alumina bricks are made with tiny hollow insulating spheres made from high-purity alumina (also called bubble alumina). Alumina does not exhibit high thermal conductivity, and when in the form of hollow spheres, its thermal conductivity is additionally reduced. Both properties make Bubble Alumina brick an excellent insulating material that can withstand exceptionally high temperatures.

Performance Characters:

1.high porosity.
2.small volume density.
3.good insulation effect.
4.high mechanical intensity.
5.small thermal conductivity.

Application:

Bubble alumina bricks are made with tiny hollow insulating spheres made from high-purity alumina (also called bubble alumina).

Alumina Bubble brickAl2O3Bulk DensityC.C.SP.L.C(%)Thermal ConductivityR.U.L
 -(%)(g/cm3)(MPa,Min)1600℃*3h(W/mk)(0.2MPa,℃)
KR-90901.110±0.30.81650
KR-90901.312±0.30.81700
KR-95951.512±0.30.71750