Ferromanganese

Manganese is present in most grades of steel. After carbon, it acts as the popular alloying agent. Ferromanganese is a member of alloy family which has a high content of manganese. Therefore, it is extensively utilized ferroalloy in the steel industry. Ferromanganese is classified in three types, FeMnHC, FeMnMC, FeMnLC. Factories use different types of FeMn based on demand specification of the final product.

This material is produced by heating MnO2 and Fe2O3, with carbon, usually as coal and coke, in either a blast furnace or a submerged arc furnace. In the below table you can find the specs of different types of FeMn.

 

Ferromanganese Specs

شرکت مهر آذین پویا سهند (MAPS)  

Ferro manganese (FeMn HC)
 

Chemical Specification  HC FeMn 65 – 70 (Grade 1)  HC FeMn 70 – 75 (Grade 2) 
Manganese (Mn)  65 – 70 % min  70 – 75% min 
Silicon (Si)  1.50% max  1.50% max 
Carbon (C)  6.0% – 8.0% max  6.0% – 8.0% max 
Phosphorus (P)  0.35 % max  0.35 % max 
Sulphur (S)  0.03 % max  0.03 % max 

 

شرکت مهر آذین پویا سهند (MAPS) Ferromanganese (FeMn MC) 
Chemical Specification  MC FeMn (Grade 1)  MC FeMn (Grade 2) 
Manganese (Mn)  75% Min  70% Min 
Silicon (Si)  2% – 4% Max  2% – 4% Max 
Carbon (C)  1.5% Max  1.5% Max 
Phosphorus (P)  0.35% Max  0.35% Max 
Sulphur (S)  0.03% Max  0.03% Max 

 

شرکت مهر آذین پویا سهند (MAPS) Ferromanganese (FeMn LC) 
Chemical Specification  LC FeMn (Grade 1)  LC FeMn (Grade 2) 
Manganese (Mn)  70 – 75%  70 – 75% 
Silicon (Si)  8% max  8% max 
Carbon (C)  0.5% max  1.0% max 
Phosphorus (P)  0.35% max  0.35% max 
Sulphur (S)  0.03% max  0.03% max 

Standard Grain Size:

20 – 80 mm (90% min) – maximum 10 % undersize

10 – 50 mm (90% min) – maximum 10 % undersize

3 – 25 mm (90% min) – maximum 5 % undersize