Ferromanganese is a ferroalloy with high manganese content (high-carbon ferromanganese can contain as much as 80% Mn by weight).It is made by heating a mixture of the oxides MnO2 and Fe2O3, with carbon (usually as coal and coke) in either a blast furnace or an electric arc furnace-type system, called a submerged arc furnace. The oxides undergo carbothermal reduction in the furnaces, producing the ferromanganese. Ferromanganese is used as a deoxidizer for steel.
Mn | C | Si | P | S | 10-50mm 10-100mm 50-100mm |
|
Low Carbon Ferro Manganese | 80 | 0.4 | 2.0 | 0.15/0.3 | 0.02 | |
80 | 0.7 | 2.0 | 0.2/0.3 | 0.02 | ||
Medium Carbon Ferro Manganese | 78 | 1.5/2.0 | 2.0 | 0.2/0.35 | 0.03 | |
75 | 2.0 | 2.0 | 0.2/0.35 | 0.03 | ||
High Carbon Ferro Manganese | 75 | 7.0 | 2.0 | 0.2/0.3 | 0.03 | |
65 | 7.0 | 2.0 | 0.2/0.3 | 0.03 |