Al2O3 Blast Furnace High Alumina Insulating Brick 45MPa
High Alumina Insulating Refractory Fire Brick
High Alumina Insulating Refractory Fire Brick is a kind of refractory material, the main component of this refractory brick is AL2O3. If Al2O3 content is higher than 90%, it is called corundum brick. Due to different resources, national standards are not completely consistent. For example, European countries set the lower limit of Al2O3 content for high-alumina refractories at 42%. In China, according to the content of Al2O3 in high alumina bricks, it is usually divided into three grades: Grade I──Al2O3 content>75%; Grade II──Al2O3 content is 60~75%; Grade III──Al2O3 content is 48-60%
High alumina bauxite is used as the main raw material, clinker is sorted by grading and sieved to remove iron, and is prepared by high temperature firing.
Application: Blast furnace, hot blast stove, electric furnace top and ladle permanent lining
| Item | Chemical Composition |
| Al2O3 | ≥55% |
| Fe2O3 | ≤2% |
| Bulk density | ≥2.2g/cm3 |
| Apparent porosity | ≤23% |
| CCS | ≥45MPa |
| Refractoriness | ≥1480℃ |
Details of our high alumina insulating brick
1.It contains the alumina content more than 45%,
2.Common high alumina insulating brick made by bauxite as raw material,
3.Bulk density is 0.4-1.35g/cm³, the porosity is 66%-73%,
4.Thermal conductivity rate is 0.291-0.582W/(m.k)350℃,
5.Working temperature is 1350~1500℃, the high purity is 1450~1800℃.
Advantages feature of our high alumina insulating brick
1. High porosity, low the thermal conductivity,
2. Good thermal shock resistance stability,
3. Excellent heat resistant, good chemical stability,
4.High purity high high alumina insulating brick can contact to flame directly,
5.Good thermal insulation energy-saving effect.
1.Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Free sample
High Alumina Brick Sample and trial order are accepted for the quality evaluation
3.Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;
Offer relative export documents and original certificate if needed;
Warm and considerable after-sale service
Packaging : Fireclay brick Packed by sea-worthy wooden pallet + shrink wrapped + carton
For example, Standard size of fireclay brick : 230x114x65mm
Shipping : 384pcs/plt x 18plts in one 20 feet container;
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