PRODUCT

Insulation Brick Jm Insulating Fire Bricks Mullite Insulating Brick

1.Primary hot face linings
2.Back-up insulation for furnaces and kilns
3.Flue insulation
4.Sulphur recovery equipment
5.Hot blast stoves

Categories: Mullite Insulating Brick, Insulating Bricks

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Product Description

Laurel supply several grades of insulating brick for use in applications from 1260℃ to 1550℃.Each grade of brick is formulated to meet specific thermal and physical requirements. After firing each brick is machined to close dimensional tolerances. Insulating bricks are manufactured utilising exceptionally high purity clays and other ceramic materials.The carefully graded organics which are used during the manufacturing process burn out during firing to give a uniform pore structure.

Features

1.High insulating properties 2.Strong compressive strength 3.Low heat storage 4.High purity 5.Tight dimensional tolerance 6.Energy saving

Parameter

Item	Mullite Insulating bricks
Grade	23		26	28	30
Al2O3(%)	≥40	≥42	≥50	≥67	≥70
SiO2(%)	53	52	43	30	25
Fe2O3(%)	≤1.2	≤1.0	≤1.0	≤0.7	≤0.7
Bulk density ( g/cm3 )	0.6	0.8	0.8	0.9	1
Classification Temperature(°C)	1300	1300	1400	1500	1550
Cold Crushing Strength (Mpa)	≥1	≥2	≥2	≥3	≥3.5
Permanent Linear Change	≤1.0	≤1.0	≤1.0	≤0.8	≤0.8
(%) x 12hrs	≤1.0	≤1.0	≤1.0	≤0.8	≤0.8
Thermal conductivity	0.18（400℃）	0.20（400℃）	0.25（400℃）	0.33（400℃）	0.43（400℃）
（W/m.k）	0.18（400℃）	0.20（400℃）	0.25（400℃）	0.33（400℃）	0.43（400℃）