Silica insulating brick


product use: depending on the material, the maximum operating temperature is - ~ 1550 ℃. According to the purpose is divided into a level two. First-class products can be used in steel rolling furnace roof and refractory industrial kiln kiln and other parts, can directly contact the Flame. Grade Two products are mainly used for thermal equipment partitions.
Physical and chemical indicators:

project	index
	QG-1.0	QG-0.8
SiO2%，≥	50	88
≥ refractorienss	1600	1600
0.1Mpa，≥ Refractory under load	1420	1400
%，≥ Apparent porosity	50	55
≥ Cold  crushing  strength	2.0	1.8
g/cm3，≤ true  density	2.40	2.10
g/cm3，≤ Bulk density	1.0	0.8

 
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Henan Guangda Refractories Co., Ltd is a high-tech enterprise which is dedicated to the refractory materials research and development, production, trade and engineering. Our company owns a professional technical research and development team that has been engaged in the refractory materials for decade years, owns advanced production equipments and testing equipment with the excellent marketing team. Our company has a sound management system for the market development and after-sale service. We will, as always, insist on the principle of quality first, customer first, putting quality and customers first, wholeheartedly provide the best quality......