Company profile:ZIBO HITECH MATERIAL CO., LTD is the specialized manufacturer and supplier of refractory in China, Our products mainly include refractory bricks, refractory castable, refractory precast shape, insulating brick etc. For refractory castable and precast shape they are very popular in the Europe, North American area.

Type:We can supply High Alumina Bricks, Fireclay Bricks, Low Porosity Fireclay Bricks, Mullite Bricks, Corundum Bricks, AZS Bricks, Magnesite Bricks, Zircon Bricks,insulating Bricks etc.

Application: Andalusite bricks are mainly used in the cooling wall of blast furnace, chemical and ceramic industry, the door of coke oven, or as the lining and checker of hot blast furnaces.

Index Item	Silica Brick	Silica brick for hot stoves	Silica brick for Glass furnaces		High quality silica brick for glass furnaces						Big size silica brick for glass furnaces
	GZ-95	LRG-95	BG-96	BG-95	XBG-96	ZBG-96	DBG-96	LBG-96A	LBG-96B	LBG-95	LDBG-94
SiO2 % ≥	95	95	95.5	95	96	96	96	96	96	94	94
Fe2O3 % ≤			1.0	1.2	1.0	1.0	1.2	1.0	1.0
Refractoriness ≥oC			1710	1710
Refractoriness under load ≥	1650	1660	1650	1650	1680	1680	1670	1680	1670	1660	1650
A.P. % ≤	22	22	21	22	22	23	24		22		25
Meltability Index % ≤					0.5	0.5	0.6	0.5	0.7	1.0
True density (g/cm3) ≤	2.37	2.34	2.37	2.38	2.34	2.34	2.35				2.36
C.C.S (Mpa) ≤	29.4	35	29.4	29.4	35	30	30	35	30	35	25
Linear change after reheating ≤		+0.2			0.3	0.3	0.3	+0.3	+0.3
Creep amt ≤		0.8
Thermal expansion ≥		1.25

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