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Calcined Bauxite Fire Retardant Bricks 2.3 - 2.7g/cm³ Bulk Density 2% Fe2O3

Calcined Bauxite Fire Retardant Bricks 2.3 - 2.7g/cm³ Bulk Density 2% Fe2O3

Calcined Bauxite Fire Retardant Bricks 2.3 - 2.7g/cm³ Bulk Density 2% Fe2O3

Product Details:

Place of Origin: ZhengZhou ,China
Brand Name: Henan HengYu
Certification: ISO9001 CE

Payment & Shipping Terms:

Minimum Order Quantity: 5Ton
Price: Negotiated
Packaging Details: Pallets With Plastic Belt And PE Bag , Also Accept Customize.
Delivery Time: 10 Days After Deposit
Payment Terms: T/T, Western Union, L/C
Supply Ability: 5000Ton Per Month
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Detailed Product Description
Al2o3: 55%-82% Application: Industrial Furnaces, Metallurgy
Size: As Request Bulk Density: 2.3-2.7 G/cm3
Fe2O3: 2% Product Name: High Alumina Brick For Lime Shaft Kiln
High Light:

high alumina fire bricks


heat resistant bricks for fire pit

2% Fe2O3 Content High Alumina Refractory Bricks 2.3 - 2.7g/cm³ Bulk Density




Mechanical strength

Excellent load-bearing properties

High temperature

Excellent resistance to spalling

Resistant to corrosion




The high alumina brick is an alumina-silicate refractory material in which the Al2O3 content is more than 55%, and is calcined from a high-content alumina raw material such as a silicone raw material or a bauxite. High heat resistance and high temperature resistance at 1770°C and above. Has good slag resistance, mainly used in the masonry of steelmaking electric furnace, glass furnace, cement rotary furnace and so on.


1. Refractoriness
More refractory than refractory clay bricks and semi-silica bricks, up to 1750-1790C, belonging to high-grade refractory materials.


2. Load softening temperature
Since the high aluminum has a high Al2O3 content, a low impurity content, and a low formation of the molten glass body, the fire-resistant softening temperature is higher than that of the refractory clay brick. However, since the mullite crystal has not yet formed a network structure, the load softening temperature is lower than the load softening temperature of the silica brick.



1. Iron & steel making industry: Blast furnace, hot blast furnace(stove), pellet shaft furnace, hot metal ladle, steel ladle, tundish, heating furnace, soaking pit furnace, heat treatment furnace, refining furnace, reheating furnace, metal mixter furnace, annealing furnace, cupola furnace, electric arc furnace, induction furnace, AOD furnace, VOD furnace,etc thermal technology equipment.
2. Non-ferrous Metal industry: Smelting furnace, refining furnace, reverberatory furnace, converter furnace.
3. Building materials industry: Cement kiln, glass kiln, ceramic kiln, lime kilns, kiln car, tunnel kiln


Physical and chemical indexes


Item/Grade Fire clay brick High alumina brick
SK-30 SK-32 SK-34 SK-35 SK-36 SK-37 SK-38 SK-40
AL2O3% (≥) 30 35 38 45 55 65 70 82
Fe2O3% (≤) 2.5 2.5 2 2 2 2 2 2
Refractoriness(SK) 30 32 34 35 36 37 38 40
Refractoriness under load, 0.2MPa, °C (≥) 1250 1300 1360 1420 1450 1480 1530 1600
Apparent porosity (%) 22-26 20-24 20-22 18-20 20-23 20-23 20-22 18-20
Bulk density (g/cm³) 1.9-2.0 1.95-2.1 2.1-2.2 2.15-2.22 2.25-2.4 2.3-2.5 2.4-2.6 2.5-2.7
Cold crushing strength ,MPa (≥) 20 25 30 40 45 50 60 70


Product Details


Calcined Bauxite Fire Retardant Bricks 2.3 - 2.7g/cm³ Bulk Density 2% Fe2O3

Calcined Bauxite Fire Retardant Bricks 2.3 - 2.7g/cm³ Bulk Density 2% Fe2O3


Henan HengYu Kiln Refractory Co.,Ltd. now mainly produces refractory materials for steel, metallurgy, coking, cement, charcoal, glass and various industrial kiln furnaces. It produces more than 60,000 tons of various stereotyped and amorphous refractory materials annually.


Product Range

  • High Alumina Brick
  • Fire Clay Brick
  • Mullite Insulating Brick
  • Magnesia Series Brick
  • Phosphate High Alumina Wear-Resistant Brick
  • Corundum AZS Brick
  • Refractory Castables
  • Ceramic Fiber Blanket


Contact Details
Henan HengYu Kiln Refractory Co., Ltd.
Send your inquiry directly to us (0 / 3000)

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