$Alumina Block Heat Resistant Fire Bricks / Refractory Baking Brick For Metallurgy$

Alumina Block Heat Resistant Fire Bricks / Refractory Baking Brick For Metallurgy

Yellow Heat Insulating Fire Bricks SK32 / SK34 / SK36 / SK38 Clay Baking Brick

Customized Size Sk32 Fire Clay Bricks / Stove Fire Bricks Heat Corrosion Resistance

High Temp Yellow Fire Clay Bricks High Alumina Bauxite Material For Fire Place / Furnace

High Crushing Strength Fire Clay Bricks Excellent Thermal Shock Resistance

High Grade Medium Duty Firebrick , Heat Insulating Fire Retardant Bricks

$Heating Furnace Castable Fire Brick , Straight Thermal Kiln Refractory Bricks$

Heating Furnace Castable Fire Brick , Straight Thermal Kiln Refractory Bricks

Industrial Fire Clay Bricks Excellent Thermal Shock Resistance High Grade

HighTemperature Fire Clay Bricks Slag Resistance 230 * 114 * 40mm For Hot Blast Furnace

High Performance Heat Insulation Brick , Blast Furnace Rotary Kiln Insulation Bricks

Custom Low Duty Fire Clay Bricks Good Erosion Resistance For Cement Kiln

Fireplace Fireproof Bricks For Fire Pit , Standard Thermal Insulation Bricks

$High Refractoriness Fire Clay Bricks Hard Structure For Carbon Furnace$

High Refractoriness Fire Clay Bricks Hard Structure For Carbon Furnace

Heating Boiler Unfired Fire Clay Bricks Al2O3 Content 30 - 48% Good Thermal Stability

Silicon Aluminum High Temp Fire Brick , Glass Furnace Heat Resistant Bricks

Item		Chamotte Brick for Carbon Furnace
Item		N-1	N-2a	N-2b	N-3a	N-3b	N-4	N-5	N-6
Al₂O₃%		≥42	≥40	≥40	≥40	≥40	≥38	--	--
Refractoriness ℃		≥1750	≥1730	≥1730	≥1710	≥1710	≥1690	≥1670	≥1580
Refractoriness Under Load,℃,[0.2MPa×0.6%]		≥1400	≥1350	--	≥1320	--	≥1300	--	--
Permanent Linear Change, %	1400℃×2h	+0.1 -0.4	+0.1 -0.5	+0.2 -0.5	--	--	--	--	--
Permanent Linear Change, %	1350℃×2h	--	--	--	+0.2 -0.5	+0.2 -0.5	+0.2 -0.5	+0.2 -0.5	--
Apparent Porosity %		≤22	≤26	≤24	≤24	≤26	≤24	≤26	≤28
Cold Crushing Strength, MPa		≥30.0	≥20.0	≥25.0	≥20.0	≥15.0	≥20.0	≥15.0	≥15.0

High Crushing Strength Refractory Fire Bricks , Fire Rated Bricks For Fire Pit

Furnace Refractory Bricks