High Temperature, Acid and Alkali Resistant Grid Brick Alumina Beam

• Customization: Available
• Feature: Long Time Materials
• Refractoriness (℃): 1580< Refractoriness< 1770
• Model NO.: Grid Brick
• Shape: Brick
• Acid-Resisting: 98%
• Bulk Density: 2.3G/Cm3
• Compressive Strength: 180MPa
• Size: Alumina Beam
• Type: Refractory Material
• Material: Alumina Block
• Specification: AL2O3
• Trademark: Zhongci
• Origin: Jiangxi
• HS Code: 69022000
• Production Capacity: 50000/Month

Product Description

Product Description

 

High temperature, acid and alkali resistant Grid Brick Alumina beam

Grid Brick Alumina beam refers to a BRICK product with an Al2O3 content of 30% to 60% aluminum . Grid bricks are used in secondary parts of coke ovens, such as regenerator wall sealing, small flue lining bricks and regenerator grid bricks, furnace door lining bricks, furnace roofs and riser lining bricks.

Grid bricks are weakly acidic refractory products, which are resistant to the attack of acid slag and acid gas. The Grid bricks have good thermal properties and are resistant to rapid cooling and rapid heat.

High alumina bricks are refractory products of aluminum silicate or alumina with Al2O3 content greater than 48%. High alumina bricks are mainly used for laying blast furnaces, hot blast stoves, electric furnace tops, blast furnaces, reverberatory furnaces, and rotary kiln linings. 

 

Technical Data

Physical index	Unit	L1	L2	L3	L4
Density	kg/m3	200±10%	230±10%	250±10%	270±10%
Cold Crushing Strength	Mpa	≥0.60	≥0.80	≥0.90	≥1.00
Flexural Strength	Mpa	≥0.35	≥0.45	≥0.50	≥0.55
Maximum Service Temp.	ºC	1000ºC	1000ºC	1000ºC	1000ºC
Linear Shrinkage(1000ºCx16hrs)	%	≤2	≤2	≤2	≤2
Thermal Conductive	w/(m.k)	200ºC 0.075   400ºC 0.098   600ºC 0.150   800ºC 0.210	200ºC 0.085   400ºC 0.100   600ºC 0.152   800ºC 0.214	200ºC 0.095   400ºC 0.108   600ºC 0.156   800ºC 0.216	200ºC 0.098   400ºC 0.110   600ºC 0.158   800ºC 0.218
Compression Strength at 10% Deformation after 16hrs*1000ºC	Mpa	0.32	0.40	0.45	0.50
Porosity	%	90.80	90.60	90.40	90.00
Moisture Content	%	3-5%
PH Value	%	8-9%
Color	/	White, gray
Surface Condition	/	1.Original dimple pattern. 2.Double sanded, smooth and good flatness.

 

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