Ferro Manganese High Carbon is an alloy of iron and manganese with high carbon contents, usually 6-8% w/w. High carbon Ferro Manganese is usually produced in arc furnace from manganese ore and coke in specified ratios.
The widespread shift toward duplex refining practices such as the AOD, CLU, etc., has led to greatly increased use of high-carbon ferromanganese. High Carbon Ferro Manganese is a bulk Ferro Alloy with India playing a vital role in its production. With the mentioned refining practices in use by stainless steel producers, this alloy has become their primary raw material as a source of manganese.
The medium carbon and low carbon grades of the alloy have been left for use in specialized applications.
Chemical Specification of High Carbon Ferro Manganese.
| Element | MAC-FeMn-HC-65 | MAC-FeMn-HC-70 | MAC-FeMn-HC-75 |
|---|---|---|---|
| Mn | 65 % min | 70 % min | 75 % min |
| Si | 1.50 % max | 1.50 % max | 1.50 % max |
| C | 6 - 8 % max | 6 - 8 % max | 6 - 8 % max |
| S | 0.05% max | 0.05% max | 0.05% max |
| P | 0.30% max | 0.30% max | 0.30% max |
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