Magnesite Brick

If You Are An Industrialist Than You May Know That It Is Very Important To Build It Up With Very Good Quality Of A Product Because One's The Product Used Cannot Be Replay Again And Again. Isn't It?

The Magnesite Brick Is One Of The Most Extensively Used Primary Refractory Bricks. Magnesite Bricks Are One Of The Most Needed Product In Chemical And Nonchemical Processes, Due To Its Properties Such As Chemical Corrosion Resistance, Flexibility, Thermal Conductivity And Coating Ability.

We Are Distributing Magnesite Brick Across The World As Our Goal Is To Give You The Excellent Quality In Moderate Cost. Depending On Your Requirement, We Will Provide You Our Services Not Only In India But Across The World.

We Would Glad To Help You Out To Choose Whatever Is Profitable For You.

Magnesite brick, the content of magnesium oxide is more than 90%,periclaseas the main crystal phase of basical
refractory brick.
Magnesite with high temperature refractorness, high begining temperature of softing under loading,good alkali
resistance of slag.
According to differnence of the production technology and raw materials,it is names general magnesite brick
and fused magnesite brick.
Magnesite brick is mainly used for open hearth furnace,bottom and wall of the EAF,conventer, high temperature
tunnel kiln,cement kiln,lime kiln, glass furnace regenerator.
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Physical properties
Brand Mca-8a Mca-7a
Index
Mgo 83.44 85.64
Cao 8.05 7.59
Sio2 3.48 2.83
Cao/sio2 2.31 2.68
Refractoriness under load 1700 1680
Cold crushing strength 102 106
Thermal shock resistances 3
Apparent porosity 10 18

Magnesia chrome brick with high purity magnesia and high quality chrome ore as raw material, after high pressure forming and high temperature sintering.
Magnesia chrome brick with good thermal shock resistance and volume stability, used in the cement and glass industries, also Non-ferrous metal smelting furnace.

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.

Our main exporting brand of refractory bricks are:

Direct bonded magnesia-chrome bricks
ííííthe product is manufactured by taking high purity magnesia and high quality chrome as raw materials through the process of high pressure moulding and high temperature burning.It has a good thermal shock resistance and volume stability and is applied in the cement and glass industries.

Main physiochemical property indexes of product

Chemical composition and technical performance
Product brand

Lzmg-5
Lzmg-8
Lzmg-12
Lzmg-15

Mgo(%)
í²70
í²65
í²60
í²55

Sio2(%)
ín1.5
ín1.5
ín1.8
ín1.8

Cr2o3(%)
í²5.0
í²8.0
í²12.0
í²15.0

Apparent porosity(%)
ín18
ín18
ín18
ín18

Cold crushing strength(mpa)
í²40
í²40
í²40
í²40

0.2mpa refractoriness under load t0.6(oc)
í²1650
í²1650
í²1650
í²1650

Thermal shock resistance(1300oc air cooling)
í²20
í²20
í²20
í²20





Also we specially in exporting submerged entry nozzle, sliding plate, ladle and tundish nozzles and well block, etc.



Herewith please find some typical refractory material which we have been exported for your reference:

Ladle, tundish nozzles and well blocks

Item
Chrome corundum nozzle
Corundum nozzle
Al2o3-sic-c nozzle
Spinel-c nozzle
Lt-70 nozzle
Lt-85 nozzle
Upper porous nozzle for

Tundish

Al2o3 (%)í²
90
93
65
55
70
85
80

Cr2o3 (%)í²
2.5


13(mgo)


2.5

C (%)í²
22

7
10
7
3


A.P. (%)ín
2.9
24
8(impre-gnated)
8(impre-gnated)
15
15
24

B.D. (g/cm3) í²
1790
2.95
2.7
2.7
2.7
2.9


Refractoriness (íµ) í²
1550íµx3h
1790






Linear change on reheating(%)
+0.1-+0.3
1600íµx3h +/-0.5












Wooden pallets

Fused cast AZS major include model AZS-33; AZS-36; AZS-41. the different model applicated in different parts of furnaces.

AZS block 33#,a normal refractory material, with the features of very good melting glass resisting, Which seldom produces stone or other faults, and has little possibility to produce bubbles. And it is widely used in glass Indaustrial furnace.

AZS block 36#:has more free baddeleyite crystals in chain structure and less vitreous phase, which further improve the corrosion resistibility and reduce the potential defects in glass, so it is recommended to be used in sections where glass flow is faster and temperature is higher, such as melter sidewall, paving, doghouse, etc.
AZS block 41#:has the most free baddeleyite crystals among the fused cast AZS families, which are evenly distgributed within the block. Its corrosion resistibility is the best and thus it is usually recommended to be used in the most demanding positions to balance the furnace life.