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Direct-bonded Magnesia Chrome Bricks

Direct-bonded magnesia chrome bricks are made from high grade magnesite clinker and chrome oxide. By high pressure shaping and high temperature firing, its characteristic is the high direct-bonding rate, and big crystallite.
Product Description

Magnesia chrome bricks are made from high-grade magnesite clinker and chrome oxide. By high-pressure shaping and high-temperature firing, its characteristic is the high direct-bonding rate and big crystallite. It has good thermal spalling resistance. The low–basic neutral nature gives itself good slag resistance when servicing low–acid feed furnaces. Magnesia chrome bricks are a realistic lining material for refining furnaces, electric furnaces, glass melting furnaces and cement rotary kilns, etc.

 

Features:

High refractoriness: can withstand temperatures up to 1750 °C

Excellent thermal shock resistance: can withstand rapid temperature changes without cracking or breaking

Good chemical stability: resistant to attack from most acids and alkalis

High strength: strong enough to withstand heavy loads and wear and tear

Good insulation properties: help to maintain consistent temperatures in high-temperature environments

 

Applications:

Used in the lining of furnaces and kilns in various industries such as steel, glass, cement, and petrochemical.

Also used in the manufacturing of ceramics, non-ferrous metals, and other refractory materials.

Can be used in the construction of high-temperature equipment such as heat exchangers, boilers, and incinerators.

It finds its application in the field of nuclear power plants, aerospace, and defense as well.

 

Technical Parameters

Items

Index

ZHMGe 8

ZMGe 12

ZMGe 14

ZMGe 16

MgO, % , min

80.0

74.0

71.0

67.0

Cr2O3, %, min

8.0

12.0

14.0

16.0

SiO2. % max

1.5

1.5

1.5

1.5

Al2O3, % max

3.0

4.0

4.0

5.0

Fe2O3,% max

5.0

6.0

7.0

8.0

CaO, % max

2.0

2.0

2.0

2.0

Apparent Porosity, %, max

17

17

    17

    17

Cold Crushing Strength, Mpa, min

65

60

55

50

Refractoriness under Load (0.2Mpa),℃

1650

1700

1700

1700

Bulk Density, g/cm3

3.00

3.05

3.05

3.10

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