Magnesia Calcium Brick,Magnesia Dolomite Brick, magnesia dolomite brick, for AOD,VOD,GOR,LF-VD
- Ref Price:
-
$200.00 - 400.00
/ m.t.
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 50000 m.t./month
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Quick Details
Place of Origin: China
Shape:Brick
Material:Magnesia dolomite
SiO2 Content (%): 1.3
Al2O3 Content (%): 0.5
MgO Content (%): 52.3~80.3
CaO Content (%): 13-42
Refractoriness (Degree): Common (1580°< Refractoriness< 1770°)
CrO Content (%): -
SiC Content (%): -
Model Number: MG-15, 20, 25, 30, 40
Brand Name: CMAX
Fe2O3 Content (%): 0.7
Bulk density (g/cm3): 3.03
Apparent porosity (%): 8
Cold crushing strength(MPa): 55
Refractoriness under Load 0.2MPa (℃): 1700
Supply Ability
Supply Ability:
2000 Ton/Tons per Month
Packaging & Delivery
Packaging Details
in wooden pallets
Port:China port
Product description
Material and Technique
Magnesia dolomite bricks/magnesia calcium bricks for AOD funace use synthetic dolomite sand as raw materials, selecting MgO/ CaO ratio in accordance with different needs, which are produced by high heat sintering and vacuum pressure impregnation pitch or paraffin treatment.
Magnesia dolomite bricks are of alkaline refractory products with a higher MgO content. Generally, MgO content of magnesia dolomite bricks is beyond 35%, then CaO content is more than 40%. In addition, Magnesia dolomite bricks also contain other impurities, such as SiO2, Al2O3, Fe2O3, etc.
Properties
Magnesia dolomite bricks for AOD furnace have good resistance to elevated temperatures and high slag resistance.
Application
As AOD furnace refractories, magnesia dolomite bricks are increasingly being used as linings for every part of AOD furnace, such as trunnion, tuyere, slag line, wall, bottom and furnace end.
Specifications
Index | MG15 | MG20 | MG25 | MG30 | MG40 |
MgO (%) | 76.3-80.3 | 72.3-76.3 | 66.3-70.3 | 62.3-66.3 | 52.3-56.3 |
CaO (%) | 13-17 | 18-22 | 23-27 | 28-32 | 38-42 |
Al2O3 (%) | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Fe2O3 (%) | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
SiO2 (%) | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 |
Bulk density (g/cm3) | 3.03 | 3.03 | 3.03 | 3.03 | 3.0 |
Apparent porosity (%) | 8 | 8 | 8 | 8 | 8 |
Cold Crushing Strength (MPa) | 55 | 55 | 55 | 55 | 55 |
Reheating linear change (%) | -0.35 | -0.61 | |||
Refractoriness under load (℃) | 1700 | 1700 | 1700 | 1700 | 1700 |
Thermal Expansion (%) | |||||
800℃ | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 | 0.8~1.0 |
1200℃ | 1.35~1.6 | 1.35~1.6 | 1.35~1.6 | 1.35~1.6 | 1.35~1.6 |
1600℃ | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 | 1.8~2.0 |
Magnesia dolomite bricks supplier
Hitech Material as the magnesia dolomite bricks supplier in China, offers various grades of magnesia dolomite refractory bricks used for various industrial furnaces.
Application
Package
Certification
- Q:What are the differences between magnesium chrome bricks, such as direct bonding, re bonding, semi bonding, CO sintering and chemical bonding? Hope expert advice..
- Direct bonded magnesia chrome brickThe loose effect caused by the expansion of spinel when the oxide of magnesia brick is directly reacted with the oxide of iron can also be used to make magnesia chromite brick with 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:What are the environmental hazards of magnesia chrome refractory bricks?
- Magnesia chrome brick with MgO and Cr2O3 as the main component of this kind of brick, high refractoriness, high strength, anti alkaline slag corrosion resistance, excellent thermal stability, has certain adaptability in industry wide application of now high temperature acid slag
- Q:What are the main raw materials of magnesia chrome bricks?
- Magnesium alloys are alloys based on magnesium and other elements. Its characteristics are: small density (1.8g/cm3 magnesium alloy or so), high specific strength, high modulus of elasticity, good heat dissipation, good shock resistance, greater impact load capacity than aluminum alloy, good resistance to organic and alkaline corrosion. The main alloying elements are aluminum, zinc, manganese, cerium, thorium, and a small amount of zirconium or cadmium.
- Q:Refractory brick, high alumina brick, magnesia chrome brick, magnesia brick, clay brick, which type of high temperature refractory brick?
- High alumina brick clay brick up to 1700 degrees above 1500 degrees -1750 degrees of magnesia brick and magnesia chrome brick 1500-1650 degrees.
- Q:With different capacitance magnesia brick brick
- Fused magnesia brick brick has compact structure, high mechanical strength,
- Q:How much is magnesium chrome brick a ton?
- Magnesium chrome bricks according to physical and chemical indicators in order to know the specific price, the production of magnesia chrome brick place a lot
- Q:What is the difference between magnesia chrome brick and direct bonded magnesia chrome brick?
- The magnesium chromium brick with the direct bonded magnesia chrome brick is different: 1 with the purity of magnesia (raw materials) 2: the sintering temperature of common magnesia chrome brick sintering temperature at 1550 DEG ~1600 DEG, direct the magnesium chromium brick sintering temperature is over 1700 DEG C, because of its more than 1700 DEG C, magnesia chrome brick microstructure occurred change, and periclase chromium ore directly combined, so called direct bonded magnesia chrome brick
- Q:Magnesium chrome brick price?
- Magnesia brick factory with strong technology foundation as the basis, has developed more than 40 varieties of products, including building materials, non-ferrous metals, iron and steel and other fields, won the national high-tech products nearly a dozen, four patents, including magnesia spinel brick reached the world advanced levelFrom July 2006 to now won the high-tech enterprises in Liaoning province; National Standardization Management Committee issued the "adopting international standard product certificate" enterprises; in 2009 passed the ISO9001 quality management system certification; the famous brand products of Liaoning Province certificate certificate and certificate management, the reliable guarantee for the quality of products.
- Q:Magnesia chrome brick
- Magnesite brick and electric arc furnace melting magnesium chromium material by direct casting (see Figure microstructure, color), fused magnesia chrome brick material produced by the process of melting particles combined with magnesia chrome brick etc..
- Q:How many kinds of refractory bricks are there?
- High aluminum brick: Al2O3 content more than 75 higher than that of the refractory clay brick, anti corrosion resistance, suitable for cement kiln etc., long service life, but high price.
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Magnesia Calcium Brick,Magnesia Dolomite Brick, magnesia dolomite brick, for AOD,VOD,GOR,LF-VD
- Ref Price:
-
$200.00 - 400.00
/ m.t.
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 50000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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