Hot sale High Quality fire 58% mgo magnesite chrome brick
Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service
also provide!
The size is precise, providing kinds of shapes according to
customer's drawing
Features
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.
Product information
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.
Applications
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
Size
Standard sizing: 230 x 114 x 65 mm others up to the client
Special size and OEM Service also provide!
Physical and chemical indexes
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 %(at 1000°C) | 1 | 1 | 1 | 0.9 |
| Thermal expansion %(at 1600°C) | 1.8 | 1.8 | 1.8 | 1.6
|
