Product Details

Specifications

1) No shrink in burn repeatedly.
2) Temperature of refractoriness under load is above 1650C

Refractory material high silica lightweight bricks

Advantage:

1) Silicon oxide is above 95%.
2) Good acid erosion resistance.
3) High softening point with temperature.
4) No shrink in burn repeatedly.
5) Temperature of refractoriness under load is above 1650º C
Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.

Item		Properties
Item		QG-1.2	QG-1.1	QG-1.0
SiO₂,%		91	91	91
Refractoriness,°C		1670	1680	1680
Softening temperature under load,°C,		1560	1560	1480
Cold Crushing strength MPa,		5.0	4	3.5
True density,g/cm³		2.39	2.39	2.39
Bulk density,g/cm³		1.2	1.1	1.0
W/(m·k)350±25°C), Coefficient of thermal conductivity W/(m·k)average temperature 350±25°C)		0.65	0.6	0.55
Permanent linear change,%,	1550°CX 2 H	0.5	0.5	—
Permanent linear change,%,	1450°CX 2 H		—	0.5
Application	All industrial furnace

$refractory material QG-1.2 silica insulation brick$ $refractory material QG-1.2 silica insulation brick$