minerals composition:mullite phases. Apply in:all parts of furnace lining for middle and small capacity blast furnaces.

Specifications:

Item	unit	ZGN-42	GN-42
Al2O3	%	≥42	42
Fe2O3	%	≤1.6	1.7
bulk desity	gr/cm3	≥2.5	2.5
apparent	%	≤15	16
C.C.S.	kg/cm2	≥58.8	49.0
R.U.L.	°C	≥1450	1430
Refracory	°C	≥1750	1760

  

Chemical-Resistant chamotte brick for blast furnaces