Light Weight High Alumina Brick, also known as high-aluminium heat insulating brick, are used in building heat insulating walls or heat preserving walls, which is basically for preserving or insulating heat. Light weight high alumina bricks contain more than 48% alumina oxide. This kind of brick does not directly exposed to high temperature inside kilns or furnaces, it only built closely to the kiln wall as insulations. It is a good insulation refractory material, which has a high compressive strength, low thermal conductivity and good insulation quality.
 
High Alumina Insulating Brick Product Data
 
  	 			High Alumina Insulating Brick​ 		
 			Item 			A13 			D14 			D16 		
 			AL2O3(%) 			≥36 			　-- 			　-- 		
 			Fe2O3(%) 			≤1.0 			　-- 			　-- 		
 			Bulk Density (g/cm3) 			≤0.8 			≤0.7 			≤1.05 		
 			Cold Crushing Strength (MPa) 			≥2.5 			≥2.0 			≥2.5 		
 			Permanent Linear Change(%) 			±1(1500℃×2h) 			±2(1400℃×2h) 			±1(1600℃×2h) 		
 			Thermal conductivity(350±25)℃ (W/mK) 			≤0.3 			≤0.24 			≤0.38 		
  
 
Features of High Alumina Insulation Brick
 
1. Small volume density.
 2. Low thermal conductivity.
 3. Excellent heat insulation.
 
Application of Light Weight High Alumina Brick
Light Weight High Alumina Brick is used in parts that is not exposed to abrasions and high temperature of melted matters. They should not be applied in environment that has a temperature higher than 1350℃.
. As a low price refractory material, the light weight high alumina bricks are applied in:
 . Furnace Lining And Insulation Layers
 . Ceramic Tunnel Kiln
 . Roller Kiln
 . Shuttle Kiln
 . Heating Furnace & Coking Furnace In Iron And Steel Industry
 . Other Thermal Equipment & Heat Treatment Lining
 
Packaging:
1. Strong packing will protect the goods from any possible damage during transit.
2. Solid packing and overall stuffing can prevent the cases from vibration and jarring.
3. We must take necessary precaution that the packing can protect goods from pilferage or rain.
4. We can confirm that we take every possible precaution to ensure that our products reach our customers all over the world in prime condition.

High Alumina Insulating Brick
Item	A13	D14	D16
AL2O3(%)	≥36	--	--
Fe2O3(%)	≤1.0	--	--
Bulk Density (g/cm3)	≤0.8	≤0.7	≤1.05
Cold Crushing Strength (MPa)	≥2.5	≥2.0	≥2.5
Permanent Linear Change(%)	±1(1500℃×2h)	±2(1400℃×2h)	±1(1600℃×2h)
Thermal conductivity(350±25)℃ (W/mK)	≤0.3	≤0.24	≤0.38

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