Castables for aluminum melting furnaces are suitable for different parts of aluminum melting furnaces in the aluminum alloy industry. They are resistant to aluminum liquid corrosion, anti-penetration, non-sticky to aluminum, and erosion-resistant. Our company's products are made of high-quality silicon carbide, fused corundum, and selected bauxite as the main raw materials, and are refined through scientific proportioning with high-quality additives. This product is comparable to similar products in Japan and has a good response in the domestic aluminum alloy industry.

Properties specification of refractory castables for aluminum melting furnace
| 
    Type  | 
  
   SR-RLL-1  | 
  
   SR-RLL-2  | 
  
   SR-RLL-3  | 
  
   SR-RLL-4  | 
 |
Chemical analysis(%) ≥  | Al2O3  | 
  
   20  | 
  
   80  | 
  
   90  | 
  
   90  | 
 
Bulk density(g/cm3) ≥  | 
  
   110℃×24h  | 
  
   1.80  | 
  
   2.70  | 
  
   2.90  | 
  
   3.00  | 
 
| 
    Modulus of rupture Mpa ≥  | 
  
   110℃×24h  | 
  
   4  | 
  
   7  | 
  
   15  | 
  
   6  | 
 
| 
   1100℃×3h  | 
  
   3  | 
  
   7  | 
  
   20  | 
  
   6  | 
 |
| 
     Compressive strength Mpa ≥  | 
  
   110℃×24h  | 
  
   30  | 
  
   40  | 
  
   70  | 
  
   90  | 
 
| 
   1100℃×3h  | 
  
   55  | 
  
   70  | 
  
   80  | 
  
   90  | 
 |
Permanent change (%)  |    1100℃×3h | ±0.2 | ±0.1 | ±0.1 | ±0.1 | 
Quality  | Fused silica  | 
  
   High alumina  | 
  
   Corundum  | 
  
   Corundum  | 
 |
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