Magnesia Chrome Bricks

Magnesia-chrome brick is a high-level refractory product material ,which contains MgO and Cr2O3 as the main components, periclase and spinel are the main mineral components. This type of brick has high refractoriness, high temperature strength, strong resistance to alkaline slag, excellent thermal stability, and certain adaptability to acidic slag. The main raw materials for the manufacture of magnesia chrome bricks are sintered magnesia and chromite. The purity of the magnesia raw material should be as high as possible.

The magnesia chrome brick is an alkaline refractory material with magnesium oxide content above 90%, with magnesite as the main crystalline phase. It has excellent properties such as high refractoriness, high-temperature strength, good thermal shock resistance, and strong resistance to alkaline slag erosion. Contact Yutong-magnesia chrome brick manufacturer to get the best price!

The magnesia chrome brick is a kind of refractory material, which is made of magnesite and chrome concentrate as the main raw material, formed by high pressure and fired by high temperature.

Heat-resistant temperature, the maximum allowable ambient temperature is 1700â??. It has high strength, high load refractoriness, high alkali erosion resistance and high thermal shock resistance under the loading condition of 1500~1650â??. It has the advantages of environmental protection and long service life.

Magnesium-chromium refractory brick is made of high-quality magnesium oxide and chromium oxide, formed by high pressure and sintered by high temperature. It has the characteristics of a large crystal and a high direct bonding rate. The product also has good anti-cracking properties and good resistance to acid slag erosion and has low alkalinity. Finally, this refractory brick is an ideal brick lining material for off-furnace refineries, electric furnaces, glass kilns, smelting kilns and cement rotary kilns.

Magnesia Chrome brick is a kind of alkaline refractory product with periclase as main phase magnesite-alumina spinel clinker as basic material. the product has such characteristics as good temperature vibration, good strength and volume stablity in high temperature.
Application:
Widely used for many industrial furnaces and kilns such as cement kilns,open-hearth furnace and melting furnace for nan-ferrous metals

Physical properties
1.Low thermal conductivity
2.High refractoriness
3.High flexibility
4.Strong abrasion resistance
5.High chemical attack resistance
6.Outstanding coating friendly

Items Index
MgO,% 82 76 72 75 70 60 70 75 80
Cr2O3,% 8 8 8 12 12 12 9 6 4
SiO2,% 1.5 2.5 3 1.5 2.5 3.2 2.8 2.8 2.5
Apparent Porosity,% 17 18 19 17 18 19 19 18 18
Bulk Density,g/cm3 3 2.95 2.95 3.05 3 3 3 2.95 2.93
Cold Compressive Strength,Mpa 45 45 45 45 45 35 40 40 40
Refractoriness Under Load, ºC 1700 1700 1650 1700 1700 1580 1600 1600 1600
Thermal Shock Resistance,cycles(950 ºC,air cooling) 80 80 60 80 60 60 60 60 60
Thermal Conductivity,w/m.k(1000 ºC) 2.8 - - 2.8 - 2.8 2.8 2.9 -
Thermal Expansion,%(1400 ºC) 1.5 - - 1.5 - 1.5 1.5 1.4 -

Shape : Rectangular
For Use : In Partition Walls, Floor
Size (Inches) ; 9 In. X 4 In. X 3 In.
Brick/Block Color : Brown

Magnesia chrome brick is an alkaline refractory product, which is made of periclase and magnesia chrome spinel, and is fired at 1600~1800 °C in an oxidizing atmosphere. It can also be made into non-burned brick by chemical bonding agent such as water glass.
According to the raw materials and process characteristics of the products, it can be divided into silicate-bonded magnesia-chrome bricks, direct-bonded magnesia-chromium bricks, re-combined magnesia-chrome bricks, semi-recombined magnesia-chrome bricks, pre-reacted magnesia-chrome bricks Casting magnesia chrome bricks.
The magnesia chrome brick can be used in vulnerable parts of steelmaking electric furnace, RH, DH vacuum degassing device, secondary refining slag line parts such as VOD, LF, ASEA-SKF, AOD, steelmaking converter, cement rotary kiln and glass melting Kiln regenerators, etc.

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. It has a good thermal spalling resistance. The low basic neutral nature gives itself a good slag resistance when servicing low acid feed furnaces. The brick is a realistic lining material for refining furnace, electric furnace, glass melting furnace and cement rotary kiln etc.

Magnesia chrome bricks are refractory bricks made of a mixture of magnesia (MgO) and chromium oxide (Cr2O3). They are known for their high refractoriness (the ability to withstand high temperatures), excellent thermal shock resistance, and good chemical stability.

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

Product Description
High Quality Burnt Magnesia Chrome Bricks are refractory products with magnesium oxide (MgO) and chromium oxide (Cr2O3) as the main components, and periclase and spinel as the main mineral components. This kind of brick has high refractoriness, high temperature strength, strong resistance to alkaline slag erosion, excellent thermal stability, and also has certain adaptability to acid slag. The main raw materials for making magnesia-chrome bricks are sintered magnesia and chromite. The purity of magnesia raw materials should be as high as possible.
Application of Magnesia Chrome Brick
With advanced production technology, technical equipment, integrated and scientific quality control system, the magnesia chrome bricks are widely used in the field of metallurgy, cement, glass, electricity, oil, chemical engineering, machinery, aerospace, construction
Packing Details of the Magnesia Chrome Brick:
1.International standard seaworthy exportable packing.
2.Wooden pallet.
3.Wooden / bamboo case (box)..
4.Further packing information will be based on customer's requirements.

Magnesia Bricks Description
Magnesia Bricks are alkaline refractory materials. These products have over 90% magnesium oxide content and adopt periclase as the principal crystalline phase. Magnesia Bricks can be divided into two categories of Burnt Magnesia Bricks and Chemical Bonded Magnesite Brick. They have excellent performance of superior high temperature mechanical strength and volume stability. Magnesia Bricks can service in the high temperature of 1750.. They are ideal products for glass furnace application.

Magnesia Bricks Features:
It is a kind of alkaline refractory product with periclase as main phase magnesite-alumina spinel clinker as basic material. the product has such characteristics as good temperature vibration, good strength and volume stability in high temperature.

Magnesia Bricks Application

Basic open-hearth furnace for steelmaking

Electric furnace bottom and wall

Permanent lining of oxygen converter

Non-ferrous metal metallurgy furnace

Hyperthermia tunnel kiln

Lining of rotary cement kiln

Heating furnace bottom and wall

Regenerative chamber of glass furnace

Magnesia Bricks Properties

High Refractoriness

Good alkaline slag erosion resistance

High apparent initial softening temperature

Good thermal conductivity

High thermal expansion

Magnesia Bricks Manufacturing Process

Burnt Magnesia Bricks are manufactured with magnesite clinker as the raw material and fired in the high temperature of 1550~1600 after smashing, burdening, mulling and molding. High-purity products can be fired in the temperature that over 1750. Chemical bonded magnesite brick is produced with certain chemical bonding through mixing, molding and drying.

Magnesia chrome brick is an alkaline refractory product, which is made of periclase and magnesia chrome spinel, and is fired at 1600~1800 °C in an oxidizing atmosphere. It can also be made into non-burned brick by chemical bonding agent such as water glass.
According to the raw materials and process characteristics of the products, it can be divided into silicate-bonded magnesia-chrome bricks, direct-bonded magnesia-chromium bricks, re-combined magnesia-chrome bricks, semi-recombined magnesia-chrome bricks, pre-reacted magnesia-chrome bricks Casting magnesia chrome bricks.