Magnesia Chrome Brick

Category:

Description

Ordinary Magnesia Chrome Brick: Magnesia-chrome bricks possess high refractoriness and strong corrosion resistance against alkaline slag. They exhibit good thermal stability, reasonable adaptability to acid slag, and resistance to spalling.

Directly Bonded Magnesia Chrome Brick: Directly bonded magnesia-chrome bricks contain minimal impurities, and their crystal phase is directly combined. They feature low porosity, high compressive strength, remarkable wear resistance, corrosion resistance, thermal shock resistance, and spalling resistance.

Fused Semi-Recombined Magnesia Chrome Brick: Semi-recombined magnesia-chrome bricks are dense with low porosity and offer high-temperature strength. They exhibit superior thermal shock resistance compared to recombined magnesia-chrome bricks and have robust resistance to slag erosion.

Fused Recombined Magnesia Chrome Brick: Fused recombined magnesia-chrome brick is a high-grade product with excellent corrosion resistance. Its high-temperature performance falls between that of fused cast magnesia-chrome brick and sintered magnesia-chrome brick.

Features & Benefits of Magnesia Chrome Brick:

  1. Low bulk density and thermal conductivity, providing good thermal insulation performance.
  2. Suitable for direct contact with fire and various atmospheres due to its refractory category.
  3. Ensures good integrity with furnace lining, resulting in a long service life and easy operation with the ability to shape freely.
  4. Comes in various specifications: standard form, normal standard, shaped, and special shaped bricks.
  5. Economical and versatile, making it the most widely used refractory material.

Applications of Magnesia Chrome Brick:

  1. Metallurgy industry furnaces and heat treatment furnaces.
  2. Chemical industry and construction industry furnaces.
  3. Incineration of garbage furnaces and CFB (circulating fluidized bed) furnaces.

Standard Sizing: 230 x 114 x 65 mm, with other sizes available upon client request.

Technique Data
Physical and chemical indicators of Ordinary Magnesia Chrome Brick：
Item Index
MG-16A MG-16B MG-12A MG-12B MG-8A MG-8B
MgO  % ≥50 ≥45 ≥60 ≥55 ≥65 ≥60
Cr2O3  % ≥16 ≥16 ≥12 ≥12 ≥8 ≥8
Apparent porosity  % ≤19 ≤22 ≤19 ≤21 ≤19 ≤21
Cold Crush Strength  MPa ≥35 ≥25 ≥35 ≥30 ≥35 ≥30
0.2Mpa Refractoriness Under Load  ℃ ≥1650 ≥1550 ≥1650 ≥1550 ≥1650 ≥1530

Physical and chemical indicators of Fused Semi-Recombined Magnesia Chrome Brick：

Item Index
ZMG-16A ZMG-12A ZMG-8A ZMG-6
MgO  % ≥60 ≥68 ≥75 ≥75
Cr2O3  % ≥16 ≥12 ≥8 ≥6
SiO2  % ≤1.5 ≤1.5 ≤1.5 ≤2.5
Apparent porosity  % ≤18 ≤18 ≤18 ≤18
Cold Crush Strength  MPa ≥40 ≥45 ≥45 ≥45
0.2Mpa Refractoriness Under Load℃ ≥1700

Physical and chemical indicators of Fused Semi-Recombined Magnesia Chrome Brick :

Item Index
BMG-26 BMG-24 BMG-22 BMG-20A
MgO  % ≥50 ≥50 ≥55 ≥58
Cr2O3  % ≥26 ≥24 ≥22 ≥20
SiO2  % ≤2.0 ≤2.0 ≤2.0 ≤2.0
Apparent porosity  % ≤16 ≤16 ≤16 ≤16
Cold Crush Strength  MPa ≥40 ≥45 ≥45 ≥45
0.2Mpa Refractoriness Under Load℃ ≥1700

 

Item Index
BMG-18 BMG-16A BMG-12A
MgO  % ≥58 ≥60 ≥68
Cr2O3  % ≥18 ≥16 ≥12
SiO2  % ≤2.0 ≤2.0 ≤2.0
Apparent porosity  % ≤16 ≤16 ≤16
Cold Crush Strength  MPa ≥40 ≥45 ≥45
0.2Mpa Refractoriness Under Load℃ ≥1700

Physical and chemical indicators of Fused Recombined Magnesia Chrome Brick：

Item Index
DMG-26 DMG-24 DMG-22 DMG-20 DMG-16 DMG-12
MgO  % ≥50 ≥50 ≥55 ≥58 ≥62 ≥68
Cr2O3  % ≥26 ≥24 ≥22 ≥20 ≥16 ≥12
SiO2  % ≤1.5 ≤1.5 ≤1.5 ≤1.5 ≤1.5 ≤1.5
Apparent porosity  % ≤16 ≤16 ≤16 ≤16 ≤16 ≤16
Cold Crush Strength  MPa ≥40 ≥40 ≥40 ≥40 ≥40 ≥40
0.2Mpa Refractoriness Under Load℃ ≥1700 ≥1700 ≥1700 ≥1700 ≥1700 ≥1700

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