Main Composition:SiO2 + Al2O3 Application:Insulation layer for various kinds of industrial furnaces Raw Material:Chamotte Color:Yellow Standard Size:230*114*65 mm Long time working temperature:1000℃-1200℃ Package:Export wooden pallets

Product Introduction

Fireclay insulation brick is made of local top grade fireclay materials with a content of 35%~42% Al2O3 according to the lasted national standard. The working temperature of them is from 1000-1200 ℃ and bulk density is 0.5-1.0 g/cm3.

Features

1.Low thermal conductivity. 2.Excellent insulating property. 3.Steady quality. 4.Low impurities.

Application

Clay insulation bricks have a wide range of uses, mainly used in thermal boilers, glass furnaces, cement furnaces, fertilizer gas furnaces, blast furnaces, hot blast furnaces, coking furnaces, electric furnaces, etc.

Item	Clay Insulation Brick
	NG-0.5	NG-0.6	NG-0.8	NG-1.0
Al2O3%  >=	35	40	42	42
Fe2O3%  <=	2.5	2.5	2.0	2.0
Bulk Density (g/cm3)  <=	0.5	0.6	0.8	1.0
Cold Crushing Strength(Mpa)  >=	1.0	1.5	2.0	2.5
Linear Change On Reheating2% (℃*h)  <=	1000℃*12h	1150℃*12h	1200℃*12h	1200℃*12h
Thermal Conductivity(w/m.k,{350±25℃})  <=	0.18	0.25	0.35	0.5
Maximum Use Temperature (℃)  >=	1000	1100	1150	1200