refractory Hollow Alumina Spherere Bricks manufacturers

Hollow Alumina Sphere Bricks, 1,high temperature resistance, 2.low thermal conductivity, 3. good thermal insulation - details see: https://www.buildingsupplieshub.com/refractory-hollow-alumina-spherere-bricks-manufacturers-10082083
Place of Origin: Shandong China (Mainland)Brand Name: LeibaoType: Alumina BrickPorosity: Hollow
Color: white ,yellow,whiteFunction: Acid Resistance Bricks,FirebricksFeature: Angle Bricks,Thin BricksTechnique: Sintered
Material: Alumina BlockShape: BrickRefractoriness (Degree): 1770°< Refractoriness< 2000° 
refractory Hollow Alumina Spherere Bricks manufacturers
contact supplier for refractory Hollow Alumina Spherere Bricks manufacturers


Hollow Alumina Sphere Bricks

Scope of application

They are widely used in inner linings of various non-contacted melt high temperature kiln and thermal insulating layers of high temperature kilns.

Physical and Chemical Indexes of Hollow Alumina Sphere Bricks

Name / Indexes/ Item
MLQ-1.5
LQ-1.2
LQ-1.5
LQ-1.7

Chemical composition

Al2O3% ≥
84
98.5
98.5
98.5
Fe2O3% ≤
0.8
0.3
0.3
0.3
SiO2% ≤
15
1.0
1.0
1.0

Bulk density

g/m3≤
1.5
1.2
1.5
1.7

Compressive strength at normal temperature MPa≥

16
3
12
15
Porosity % ≥
58
62
60
58
Soften point at 0.1MPa KD°C≥
1650
1650
1700
1700
Fire resistant (°C)≥
1800
1800
1800
1800
Thermal conductivity
Hot side 1000°C
W/m.k≤
1.2
0.95
1.05
1.15

Packaging Detail:Standard export packing and pallets
Delivery Detail:30 days

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