What is Ferromanganese?
Ferroalloys play a very impotant role in producing various types of steel products which are essential to our daily lives.


Product Specifications
Chemical composition
High・Medium・Low Carbon Ferromanganese
| Type |
No. | Grade |
Chemical composition (%) | ||||
| Mn | C | Si | P | S | |||
| High Carbon Ferromanganese |
1 | H1 | 73 to 78 | ≤ 7.3 | ≤ 1.2 | ≤ 0.40 | ≤ 0.02 |
| Medium Carbon Ferromanganese |
2 | M0 | 80 to 85 | ≤ 1.5 | ≤ 1.5 | ≤ 0.40 | ≤ 0.02 |
| 3 | M2 | 75 to 80 | ≤ 2.0 | ≤ 2.0 | ≤ 0.40 | ≤ 0.02 | |
| Low Carbon Ferromanganese |
4 | L0 | 80 to 85 | ≤ 1.0 | ≤ 1.5 | ≤ 0.35 | ≤ 0.02 |
| 5 | L1 | 75 to 80 | ≤ 1.0 | ≤ 1.5 | ≤ 0.40 | ≤ 0.02 | |
| 6 | C05 | 75 to 85 | 0.1 to 0.5 | ≤ 2.0 | ≤ 0.30 | ≤ 0.03 | |
Powdered Ferromanganese Product
Chemical composition (%), size
| Type |
Mn | C | Si | P | S | Particle size |
| FMnH | 73 to 78 | ≤ 7.0 | ≤ 1.0 | ≤ 0.20 | ≤ 0.02 | -300µm:100%, -75µm:20 to 60% |
| FMnM | 75 to 80 | ≤ 2.0 | ≤ 1.0 | ≤ 0.20 | ≤ 0.02 | -300µm:100%, -75µm:20 to 60% |
| FMnL | 75 to 80 | ≤ 1.0 | ≤ 1.0 | ≤ 0.20 | ≤ 0.02 | -250µm:100%, -75µm:50 to 75% |
Oxidizing treatment is applicable to all grades
High purity manganese Oxides
Chemical composition (%), size
| Type |
Mn | Fe | SiO2 | CaO | MgO | Al2O3 | Particle size |
| MOX-Pu | 67 to 71 | 1.0 to 3.0 | ≤ 1.0 | ≤ 0.1 | ≤ 1.0 | ≤ 0.3 | -45µm: ≥ 95% |
| MOX-Po | 60 to 67 | 3.0 to 8.0 | ≤ 5.0 | ≤ 0.2 | ≤ 1.0 | ≤ 2.0 | -45µm: ≥ 80% |