Magnesia Chrome Brick
MOQ：5 tons
Description
Magnesia chrome brick is produced using high-grade magnesite clinker and chromium oxide as raw ingredients. The highest permissible ambient temperature for this product is 1700°C. Magnesium chrome brick has a long service life and is environmentally friendly. It also has good heat peeling resistance, high alkali corrosion resistance, and high thermal shock resistance features.
Features
Magnesia chrome brick have some characteristics such as
High strength and high refractoriness
High thermal shock resistance
Good crack resistance
Good resistance to acid residue
Physical And Chemical Indicators
|
Brand Properties |
JRMC22 |
JRMC16 |
JRMC12 |
JDMC22 |
JDMC16 |
JDMC8 |
|
|
Apparent Porosity (%) |
15 |
15 |
15 |
16 |
17 |
18 |
|
|
Bulk Density (g/cm3) |
3.25 |
3.20 |
3.20 |
3.15 |
3.0 |
2.95 |
|
|
Cold Crushing Strength (MPa) |
50 |
50 |
50 |
40 |
40 |
40 |
|
|
@1400℃ Thermal Linear Expansion(%) |
1.8 |
1.5 |
1.2 |
1.8 |
1.5 |
1.2 |
|
|
(times) Thermal Shock Resistance air cool |
60 |
55 |
50 |
40 |
40 |
40 |
|
|
@0.2MPa Refractoriness Under Load (℃) |
1700 |
1700 |
1700 |
1700 |
1650 |
1600 |
|
|
Chemical Composition (%) |
MgO |
55 |
65 |
75 |
55 |
65 |
75 |
|
Cr2O3 |
22 |
16 |
12 |
22 |
16 |
8 |
|
|
SiO2 |
1.5 |
1.5 |
1.5 |
2.0 |
2.0 |
2.5 |
|
|
Main Applications |
Rotary & Shaft Kiln AOD COD RH EAF & Ladle Nonferrous Metal Furnace Hot-blast furnace Glass kiln |
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Application
Magnesia chrome brick is mainly used in the metallurgical industry, such as the construction of open hearth furnace roofs, electric furnace roofs, external refining furnaces and various non-ferrous metal smelting furnaces.
The high-temperature part of the wall of the ultra-high power electric furnace is made of fused-cast magnesia chrome brick, the high-erosion area of the refining furnace outside the furnace is made of synthetic materials, and the high-erosion area of the non-ferrous metal flash smelting furnace is made of fused-cast magnesia-chrome bricks and synthetic materials. In addition, It is also used in the burning zone of cement rotary kilns and regenerators of glass kilns.
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