Complaint
Ferro manganese is a ferroalloy composed of Ferro and manganese. The Mn element's density is 7.43g/cm3, melting point is 1245ºC, the boiling point is 2150ºC.
Ferro manganese is widely used in steel making as a deoxidizer and an alloying agent. Manganese reacts readily with oxygen to form stable manganese oxide.
Low-carbon ferrochrome (LC FeCr), with a carbon content below 0.5%, is a ferroalloy used to regulate the ratio of chromium in steel production without adding carbon and other unwanted ingredients. It is also used by the superalloys industries.
Medium carbon ferrochrome (MC FeCr), with a carbon content of between 0.5-4%, is used in the foundry industry as well as in steelmaking plants where refining capacity is limited but low silicon content is desired.
MC FeCr can be produced by the silico-thermic reduction of chromite ore and concentrates or by the decarburisation of HC FeCr in an oxygen-blown converter. The silico-thermic route is more economic and therefore more important today for producing MC FeCr. This may be because of the low demand for MC FeCr compared to the high demand for HC FeCr. LC FeCr can be produced by the same process.
| Grade | Mn | C ≤ | Si ≤ | P ≤ | S ≤ |
| FeMn88C0.2 | 85.0-92.0 | 0.2 | 2.0 | 0.3 | 0.02 |
| FeMn84C0.4 | 80.0-87.0 | 0.4 | 2.0 | 0.3 | 0.02 |
| FeMn84C0.7 | 80.0-87.0 | 0.7 | 2.0 | 0.3 | 0.02 |
| FeMn82C1.0 | 78.0-85.0 | 1.0 | 2.5 | 0.35 | 0.03 |
| FeMn82C1.5 | 78.0-85.0 | 1.5 | 2.5 | 0.35 | 0.03 |
| FeMn78C2.0 | 75.0-82.0 | 2.0 | 2.5 | 0.40 | 0.03 |
| FeMn78C8.0 | 70.0-82.0 | 8.0 | 2.5 | 0.33 | 0.03 |
| FeMn74C7.5 | 70.0-77.0 | 7.5 | 3.0 | 0.38 | 0.03 |
| FeMn68C7.0 | 65.0-72.0 | 7.0 | 4.5 | 0.40 | 0.03 |
Packaging Details
Production of steel, especially stainless steel with a chromium content of 10 to 20%, is the largest consumer of high-carbon ferrochrome. Over 80% of the world's ferrochrome is used in the production of stainless steel.
The vast majority of ferrochrome produced is charge chrome, which has a lower chrome content ratio. Used most commonly in stainless steel, it is mainly produced in South Africa.
Low-carbon and medium-carbon ferrochrome is used in the manufacture of special steels. Low-carbon ferrochrome can be used to produce superalloys.
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