Description

Magnesia Chrome Brick Intorduction
  
Magnesite chrome brick to magnesium oxide (MgO) and chromium oxide (Cr2O3) as the main ingredient,periclase and spinel as main mineral components of refractory products.
 
1.Common Magnesite chrome brick is made by sintered magnesia and refractory level chrome ore as raw materials. The space between refractory grains is bonded with silicate.
 
2.Direct-bonded Magnesite chrome brick is made by chrome ore with low content of impurities and pure magnesite,firing at the temperature above 1700°C.
 
3.Semi-rebonded and Fuse-rebonded magnesite chrome brick are made by fused magnesite chrome sinter.
 
Magnesia Chorme Brick Features & Benefits
 
1. Low bulk density, low thermal conductivity, good thermal insulation performance.
2. Refractory category allow direct contact of fire, suitable ofr various atmosphere
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely
4. Product specification: standard form, normal standard, shaped and special shaped bricks.
5. Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.
 
Applications of Magnesia Chorme Brick
 
1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace
Standard sizing: 230 x 114 x 65 mm others up to the client
 
Rongsheng Refractory Magnesia Chorme Brick Technical Data
 
Common magnesite chrome brick

Item	MGe6	MGe8	MGe12	MGe16
MgO %	80	72	70	65
Cr2O3 %	7	10	13	17
CaO %	1.2	1.2	1.2	1.2
SiO2 %	3.4	4	4	4.2
Al2O3 %	4.5	6.5	6	6
Fe2O3 %	4	4.8	5.5	6.5
Apparent Porosity %	17	18	18	18
Bulk Density g/cm3	3	3	3.02	3.05
Cold Crushing Strength Mpa	55	55	55	50
Refractoriness Under Load °C	1600	1600	1600	1600

 
Direct-Bonded magnesite chrome brick
 

Item	DMGe4	DMGe8	DMGe12	DMGe16
MgO %	85	77	74	69
Cr2O3 %	5.5	9.1	14	18
CaO %	1.1	1.4	1.2	1.2
SiO2 %	1.3	1.2	1.2	1.5
Al2O3 %	3.5	4	3.5	4.5
Fe2O3 %	3	6.4	5	5.7
Apparent Porosity %	18	18	18	18
Bulk Density g/cm3	3.02	3.04	3.06	3.08
Cold Crushing Strength Mpa	50	50	55	55
Refractoriness Under Load °C	1700	1700	1700	1700
Thermal expansion % 1000°C	1	1	1	0.9
Thermal expansion % 1600°C	1.8	1.8	1.8	1.6