Composition:SiO2 Application:Heat-insulating layer of various of high temperature furnaces Capacity:800 tons per month Color:White Size:As your requirements Raw Material:Quartz sand Package:Export wooden pallets

Product Introduction

Silica insulation brick refers to a kind of refractory products made from silica as the main material and with SiO2 content not less than 91%.The main mineral composition of silica insulation brick is phosphorite and cristobalite.

Features

1. High refractoriness under load. 2. Energy-saving. 3. Less heat radiation loss. 4. Low thermal conductivity.

Application

Silica insulation brick has excellent fire resistance, with only small residual expansion, and good thermal stability. They are suitable for industrial furnaces such as coke ovens, hot blast furnaces, glass furnaces, and carbon furnaces.

Item	Silica Insulation Brick
	GGR-1.0	GGR-1.10	GGR-1.15	GGR-1.20
SiO2(%)	>=91
Bulk Density (g/cm3)	1.0	1.10	1.15	1.20
Cold Crushing Strength (MPa)	>=2	>=3	>=5	>=5
Refractoriness Under Load  (0.2MPa)(℃)	1400	1420	1500	1520
Permanent Linear Change (1550℃*2h)(%)	--	--	0.5	0.5
Permanent Linear Change (1450℃*2h)(%)	0.5	0.5	--	--
Coefficient of Thermal Conductivity,Average Temperature 350+10℃ w/(m·k)	0.55	0.60	0.65	0.70