Dolomite Brick magnesia calcium brick for Steel ladle,Aod,VOD
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- Loading Port:
- Dalian
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 2000 m.t./month
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Product details
Dolomite Brick,magnesia calcium brick used for Steel ladle,Aod,VOD.
Magnesia-Calcium bricks are made of two-step burned magnesia-calcium sands and high pure magnesia. After high pressure shaping, high temperature burning and paraffine vacuum dipping. It has good high temperature creep-resistance and slag resistance. It is the best materials for AOD, VOD,ladle.
Dolomite brick/Mag Calcium Brick Product Data
Type | LKMG15 | LKMG20 | LKMG25 | LKMG30 | LKMG40 | LKMG50 | |
MgO(%) | 80.3 | 76.3 | 70.3 | 66.3 | 56.3 | 43.3 | |
CaO(%) | 17 | 21 | 27 | 31 | 41.0 | 54 | |
Al2O3(%) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |
Fe2O3(%) | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | |
SiO2(%) | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.3 | |
Bulk density(Kg/m3) | 3030 | 3030 | 3030 | 3030 | 3000 | 2930 | |
Apparent porosity% | 13 | 12 | 12 | 13 | 13 | 12 | |
Cold Crushing Strength (MPa) | 80 | 90 | 80 | 80 | 80 | 70 | |
Refractoriness Under Load 0.2MPa℃ | 1700 | 1700 | 1700 | 1700 | 1700 | 1700 | |
Rupture strength (Mpa) | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | 2.5-4.5 | |
Reheat test,Permanent linear change (%) | – | – 0.35 | – | – 0.61 | – | – | |
Thermal conductivity(W/m.k)-1 | 3~4 | 3~4 | 3~4 | 3~4 | 3~4 | 3~4 | |
Thermal expansion(%) | 800℃ | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 |
1200℃ | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | 13.5~1.6 | |
1200℃ | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | |
Application of Magnesia Alumina Carbon Brick
Currently dolomite bricks/magnesia calcium brick are used as refractory lining of treatment and casting ladles in many steel plants worldwide. Thanks to its low oxidation potential, does not transfer oxygen to the liquid steel, therefore it makes desulphurization easier, it is highly compatible with basic slag, it increases the yield of Fe-alloys and can grant long service life at optimal refractory costs. The AOD and VOD process are nowadays the most common ways to produce stainless and alloy steel grades. The dolomite and dolo-magnesite refractories are considered as the most common lining for such a metallurgical process, especially for their attitude to desulphurization, to work with silica-based slag and to achieve the best performances in terms of costs and service life. We offers a wide range of fired and C-bond dolomite-based bricks, suitable for many metallurgical treatments.
CNBM International Corporation
We have 13 refractory plants and annual production capacity 500,000 tons, 15 professor level senior engineers,239 engineers,5 senior experts committed Iron & Steel industry.
We produce Magnesia Carbon Brick,Magnesia Brick,High Alumina Brick,Fireclay Brick,Corundum Brick,Corundum-Mullite Brick,Magnesia Chrome Brick,Silica Brick,Silicon Nitride Bonded SiC Brick,Monolithic Refractories.
We have 263 patents, 5 national key new product and 69 provincial and ministerial scientific achievements.
CNBM International is highly recognized by its business partners and clients all over the world and has established good business relationship with the customers in over 160 countries and regions all over the world.
- Q:Manufacture of various refractory magnesia brick mainly comes from Magnesium Oxide, what kind of ore?
- Manufacture of various refractory magnesia brick Magnesium Oxide, mainly from magnesite.
- Q:How do you differentiate between the two clearly? Where is the key? Thank you
- Magnesia brick have high refractoriness, alkali slag good performance, high load softening temperature, but poor thermal shock resistance. The sintering magnesia brick brick magnesite as raw material, crushing, proportioning, mixing, forming, in 1550 ~ 1600 degrees firing, high purity products firing temperature is over 1750 DEG C. Don't add chemical bond magnesia brick is appropriate in magnesia, through mixing, molding and drying.
- Q:Combined with the ordinary clay brick and magnesia brick as an example, the existence of impurities in minerals and refractories production main components of the formed liquid relative what affect the performance.
- The main varieties of common magnesia brick, magnesia brick, magnesia brick, magnesia brick high pure grade. Product main mineral phase is periclase, volume has high stability and anti erosion ability. Literature is widely used in steelmaking, non-ferrous metal smelting and other high-temperature industrial furnace.
- Q:Process for producing magnesia chrome brick
- The oxide of iron reacts to produce a loose effect caused by the expansion of the spinel. Also, the magnesia chrome brick can be made from the synthetic common sintered material. In addition, there are non burned magnesia chrome bricks, for example, non burned magnesia chrome bricks combined with inorganic magnesium salt solutions. The unfired magnesia chrome brick has the advantages of simple production process, low cost and good thermal stability, but the strength of the high temperature is far less than that of the burnt brick. In the late 50s, a so-called "direct bonding" magnesia chrome brick was developed. The characteristics of this brick raw material is pure, high firing temperature, periclase and spinel phase with high temperature directly, silicate and other low melting point phase for island distribution, therefore, significantly improve the high temperature strength and slag resistance of brick.
- Q:High purity magnesia brick masonry mortar for what?
- You try a mixture of aluminum phosphate. It itself is the main component of aluminum, which can not cause pollution. We use high temperature electric stove to bond with this.But this 800 degree won't be sintered. It won't sinter until more than 1000 degrees.
- Q:Magnesite chrome brick, magnesia chrome brick indicators? What is the price?.
- According to the actual situation, design the brick you need, and the price of brick is determined by the index.
- Q:How to identify the fused magnesia brick and sintered magnesia brick
- Burnt magnesia brick is made of high quality sintered magnesia as main raw materials, paper pulp as binder. After mixing and high pressure molding, it is fired in a high temperature tunnel kiln over 1550 degrees celsius. It has good thermal stability, corrosion resistance and spalling resistance. Widely used in converter, arc furnace and other industrial furnace lining refractory.Fused magnesia brick brick has compact structure, high mechanical strength, low impurity content, mainly used for the storage of large glass kilnHigh temperature area of the room. The fused magnesia is made of high quality magnesia as raw material. It is made by melting. The English name is fused magnesite. Magnesium hydroxide from magnesite or brucite or from sea water is calcined at high temperature. Strong hydration resistance.
- Q:The index of magnesia brick
- Room temperature compressive strength≥（MPa）（15－25－）24.5－24.5－24.5－24.5－40－40－40
- Q:Refractory brick, high alumina brick, magnesia chrome brick, magnesia brick, clay brick, which type of high temperature refractory brick?
- The super high alumina brick in high alumina refractory brick has the highest refractoriness, and the corresponding production cost is higher.
- Q:Brick price?
- Refractory brick series sintered magnesia brick, magnesia chrome brick, magnesia brick, magnesia spinel brick, magnesia calcium brick, unburned magnesia chrome brick, magnesia brick, magnesia calcium brick, magnesia brick, and al2o3-mgo-c bricks.
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Dolomite Brick magnesia calcium brick for Steel ladle,Aod,VOD
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT or LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 2000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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