High Alumina Bricks Introduction
A neutral refractories with an alumina content of more than 48% are formed and calcined from bauxite or other material with high alumina content.High thermal stability , refractoriness above 1790 degrees Celsius. Good resistance to slag, used for the steel ladle of the working layer. High alumina bricks are neutral refractories ,which have strong resistance to acidic and alkaline slag ,high refractoriness and high-temperature mechanical strength,are mainly used for the bottom of the soaking furnace ,the lower furnace wall, continuous heating furnace wall,ceiling,hearth, burner brick. Alumina refractory brick size can be customized according to customer requirement in RS Refractory material manufacturer.
High Alumina Bricks for the Steel ladle Feature
1.High Alumina Bricks Working Layer Refractoriness
The refractoriness of alumina fire bricks is higher than of clay bricks and semi-silica bricks,which is as high as high 1750℃~1790℃,which is an advanced refractory material.
2.High Alumina Bricks Working Layer Refractoriness Under Load
Due to the high Al2O3 content in high alumina products and the low amount of impurities,the formation of friable glass bodies is less,so the load softening temperature is higher than the clay bricks.
3.High Alumina Bricks Working Layer Slag Resistance Performance
High alumina refractory bricks of the working layer contains high content Al2O3 and close to the neutral refractories, which can resist the erosion of acidic slag and alkaline slag ,because refractory bricks contains SiO2,the ability of resistance to alkaline slag is weaker than the ability to resistance to alkaline slag is weaker than the ability to resist acidic slag.
High Alumina Bricks for the Steel Ladle Specification
| Item |
High Alumina Bricks |
| SK-36 |
SK-37 |
SK-38 |
SK-40 |
| Al2O3%(≥) |
55 |
65 |
75 |
80 |
| Fe203%(≤) |
2.0 |
2.0 |
2.0 |
2.0 |
| 0.2Mpa Refractoriness Under Load(℃)≥ |
1450 |
1470 |
1530 |
1600 |
| Apparent Porosity(%) |
23 |
22 |
20 |
18 |
| Bulk Density(g/cm3) |
2.3 |
2.4 |
2.5 |
2.65 |
| Cold Crushing Strength(Mpa) ≥ |
40 |
55 |
60 |
70 |
High Alumina Bricks of the Steel Ladle Advantage
1.High Alumina refractory bricks have high temperature creep rate
2.High Alumina fire bricks have strong erosion resistance
3.Refractory high alumina bricks have thermal shock stability
High Alumina Bricks Application in the Steel Ladle Reason
1) High alumina bricks have high temperature resistance, can withstand high temperature molten steel for a long time without melting and softening.
(2) High alumina fire bricks have thermal shock resistance, can repeatedly withstand the loading of molten steel, without cracking and peeling off.
(3) Refractory alumina brick have the slag corrosion resistance can withstand the erosion of the lining by the slag and slag basicity change.
(4)High alumian fire bricks have sufficient high-temperature mechanical strength to withstand the agitation and scouring action of molten steel.
(4) High aluminum brick, the A1203 content in the refractory bricks are between 50% and 80%, alumina refractory bricks are mainly used for the working layer of the ladle.
High Alumina Bricks for the Steel Ladle Supplier in RS Refractroy Manufacturer
1.Rongsheng refractory castable have rich refractory raw materials and 20 years experienced in the refractory bricks manufacturing. Rongsheng refractory castable can provide specification and category as well as competitive price & high-grade quality refractory castable products.
2.Rongsheng refractory bricks manufacture have perfect after-sales service system.
3.From raw material procurement to final product inspection and after-sales service. Ensure that the product offered to the user is 100% qualified.
