Qingdao Leadsun Refractory Co., Ltd
| Payment Terms | L/C, D/P, T/T, Western Union |
| Supply Ability | 10000 pallets/month |
| Delivery Time | 10 days |
| Packaging Details | pallets |
| Brand Name | LEADSUN |
| Model Number | HA55 HA60 HA70 HA75 HA80 |
| Certification | CE ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/P, T/T, Western Union | Supply Ability | 10000 pallets/month |
| Delivery Time | 10 days | Packaging Details | pallets |
| Brand Name | LEADSUN | Model Number | HA55 HA60 HA70 HA75 HA80 |
| Certification | CE ISO | Place of Origin | China |
High Alumina Refractory Brick 55%–85% Al₂O₃ With High Refractorines
Leadsun high alumina refractory bricks are manufactured from selected bauxite chamotte through advanced processes and strict quality control. Composed mainly of corundum and mullite phases, they offer excellent high-temperature strength and chemical corrosion resistance.
| Item | HA60 | HA70 | HA75 | HA80 |
| AL2O3(%) | ≥60 | ≥70 | ≥75 | ≥80 |
| SIO2(%) | 32 | 22 | 20 | ≥18 |
| Fe2O3(%) | ≤2.5 | ≤2.0 | ≤1.8 | ≤1.5 |
| Refractoriness °C | ≥1750 | ≥1780 | ≥1800 | ≥1850 |
| Bulk density,g/cm3 | 2.35-2.4 | 2.45-2.5 | 2.5-2.55 | 2.75-2.8 |
| Softening temperature under load | ≥1450 | ≥1510 | ≥1520 | ≥1600 |
| Apparent porosity,% | ≤24 | ≤23 | ≤21 | ≤18 |
| Cold Crushing strength Mpa | ≥45 | ≥50 | ≥60 |
≥85 |
Advantages
1. High Temperature Resistance
High alumina bricks offer excellent thermal stability and can withstand temperatures up to 1750°C, maintaining reliable performance in high-temperature environments.
2. High Bulk Density
The dense structure provides high mechanical strength, strong load-bearing capacity, and good wear resistance.
3. Low Iron Content
Low iron impurities improve refractoriness and stability, preventing unwanted reactions at high temperatures.
4. Good Erosion Resistance
Excellent resistance to chemical erosion and slag corrosion, ensuring longer service life in harsh industrial conditions.
Key Features
Excellent resistance to high temperatures
High bulk density for enhanced durability
Low iron content for improved refractoriness
Strong resistance to erosion and chemical attack
Applications
Steelmaking furnaces
Ironmaking furnaces
Glass kilns
Ceramic tunnel kilns
Cement kilns
Company Details
Business Type:
Distributor/Wholesaler,Exporter,Trading Company,Seller
Year Established:
2014
Total Annual:
3000000-5000000
Employee Number:
5~20
Ecer Certification：
Verified Supplier
Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia... Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia...
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