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 bricks etc.For refractory castable and precast shape they are very popular in the Europe,North American area.

Characteristics:select fused magnesia as raw materials,high strength,high temperature resistence and good chemical stability.

Application:mainly applicable to building materials,smelting and nonferrous

Index Item	Magnesia brick
	MZ**1	MZ**9	MZ**7
MgO % ≥	*1	*9	*7
CaO % ≤	3	3	3
SiO2 % ≤
Refractoriness under °C≥	***0	***0	***0
A.P. % ≤	*8	*0	*0
C.C.S (Mpa) ≥	*8.8	*9	*9.2
Linear change after reheating %(***0x2h)	**0.5	**0.6	**0.6