Magnesite Refractory Bricks

$magnesite refractory bricks$

Good specifications for the shock resistance

High temperature performance

Low thermal expansion

Good thermal shock resistance and slag resistance

High strength

Technical Index

Item	Direct bonded magnesia chrome brick				Semi bonded magnesia chrome brick	Semi bonded again magnesia chrome brick		Bonded again magnesia chrome brick
Item	DMC-12	DMC-8A	DMC-8B	DMC-8C	BMGe	ZBDMGe-16	ZBDMGe-16	ZDMGe-16	ZDMGe-20
MgO≥%	60	80	78	75	72	60	55	65	60
Cr2O3≥%	12	8	8	8	6	16	20	16	20
SiO2≥%	32	1.2	1.5	2.5	3.5	1.5	1.5	1.2	1.2
Apparent Porosity %	18	18	8	18	18	17	17	16	16
Bulk Density g/cm3	3.0	3.0	3.0	3.0	2.95
Cold Crushing Strength Mpa	40	45	45	45	40	40	40	45	45
0.2Mpa Refractoriness Under Load T0.6	1600	1700	1700	1680	1600	1750	1750	1750	1750
Thermal expansion1400°C≤%	1.4	1.6	1.6	1.6
Heat and shock stability(1100°C water cooling)	5	6	6	6	5
Application	cement rotary kiln, Steelmaking electric line furnace, non-ferrous metallurgical furnace, lime kiln					Widely used in RH, VOD and color metallurgy furnace