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Magnesia Chrome Bricks

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Jun 30, 2021
Magnesia Chrome Bricks

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 for 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.

Technical Data of Magnesia Chrome Bricks:

Common Magnesia Chrome Brick

 Items Physical and Chemical characters
MGe-16A MGe-16B MGe-12A MGe-12B MGe-8A MGe-8B
MgO % ≥ 60 45 60 55 65 60
Cr2O3 % ≥ 16 16 12 12 8 8
Apparent Porosity % ≤ 19 22 19 21 19 21
Cold Crushing Strength MPa≥ 35 25 35 30 35 30
Refractoriness Under Load °C≥ 1650 1550 1650 1550 1650 1530

Direct-Bonded Magnesia Chrome Brick

 Items Physical and Chemical characters
ZMGe-16A ZMGe-16B ZMGe-12A ZMGe-12B ZMGe-8A ZMGe-8B ZMGe-6
MgO % ≥ 60 58 68 65 75 70 75
Cr2O3 % ≥ 16 16 12 12 8 8 6
SiO2 % 1.5 2.5 1.5 2.5 1.5 2.5 2.5
Apparent Porosity % ≤ 18 18 18 18 18 18 18
Cold Crushing Strength MPa ≥ 40 40 45 45 45 45 45
Refractoriness Under Load °C ≥ 1700 1650 1700 1650 1700 1650 1700

Fused rebonded Magnesia Chrome Brick

Items Physical and Chemical characters
DMGe-26 DMGe-24 DMGe-22 DMGe-20A DMGe-20B DMGe-16A DMGe-16B DMGe-12A DMGe-12B
MgO % ≥ 50 50 55 58 58 62 58 68 65
Cr2O3 % ≥ 26 24 22 20 20 16 16 12 12
SiO2 % 1.5 1.5 1.5 1.5 2.0 1.5 2.0 1.5 2.0
Apparent Porosity % ≤ 16 16 16 16 17 16 17 16 17
Cold Crushing Strength MPa ≥ 40 40 40 40 40 40 40 40 40
Refractoriness Under Load °C ≥ 1700 1700 1700 1700 1700 1700 1700 1700 1700

Fused semi-rebonded Magnesia Chrome Brick

 Items Physical and Chemical characters
BMGe-26 BMGe-24 BMGe-22 BMGe-20A BMGe-20B BMGe-

18

 BMGe-16A BMGe-16B BMGe-12A BMGe-12B
MgO % ≥ 50 50 55 58 55 58 60 55 68 65
Cr2O3 % ≥ 26 24 22 20 20 18 16 16 12 12
SiO2 % 2.0 2.0 2.0 2.0 2.5 2.0 2.0 2.5 2.0 2.5
Apparent Porosity % ≤ 16 16 16 16 16 16 16 17 16 16
Cold Crushing Strength MPa ≥ 40 40 40 40 35 40 40 35 40 35
Refractoriness Under Load °C ≥ 1700 1700 1700 1700 1700 1700 1700 1700 1700 1700

Application of Magnesia Chrome Bricks:

Magnesia chrome bricks are mainly used in cement rotary kilns, glass kiln regenerators, steelmaking furnace linings, refining steel cladding, non-ferrous metallurgy furnaces, lime kilns, iron mixers and refractory high-temperature furnace linings.

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