CONTROLLED CARBON FERRO MANGANESE
Manganese is intentionally present in most grades of steel and is a residual constituent of virtually all others. Aside from its historic importance as a desulfurizer and deoxidizer, Manganese is undoubtedly the most prevalent alloying agent in steels, after carbon. Understandably, therefore, Ferro-Manganese is the most widely used ferroalloy. It is lumpy material practically odourless when dry, with a silvery metallic surface. Manganese has an important influence on the structure and properties of steel, depending on the amount used and the combined effect with other alloying elements. Manganese improves the tensile strength, workability, toughness, hardness and resistance to abrasion. It also reacts with the remaining sulphur in the steel and thus prevents any tendency of hot shortness. Manganese addition agents are generally chosen on the basis of carbon content. As the content of carbon becomes more restricted in Steel, it is necessary to switch to the more costly low-or medium carbon Ferro Manganese.
MEDIUM CARBON FERRO MANGANESE
When Medium Carbon Ferro Manganese is used in comparison of High Carbon Ferro Manganese, approximately 80% less carbon is added to the steel. Medium Carbon Ferro Manganese is used as an alloying constituent for Tool steel – Stainless and Heat resistance steel – Structural Steel and Anti Abrasion Steel to name a few.
| Mn: | Si: | C: | S: | P: |
|---|---|---|---|---|
| 70% | 2-4% | 2% Max. | 0.05% Max | 0.3% Max. |
LOW AND ULTRA LOW CARBON FERRO MANGANESE
Low Carbon Ferromanganese is used for maximum restriction of Carbon Content in Steel. As compared to High Carbon Ferro Manganese, approximately 90-95% less carbon is added to the steel along with lower contents of sulphur, phosphorous and silicon. Low Carbon Ferro Manganese is mostly used in the welding industry. It is an essential ingredient for making high-strength low-alloy steel and stainless steel. It serves as a major constituent of making Mild Steel Welding Electrodes and other electrodes and is widely acclaimed for its optimum quality and accurate composition.
| S. No. | Mn: | Si: | C: | S: | P: |
|---|---|---|---|---|---|
| 1 | 70% | 6-7% | 0.6% Max. | 0.05% Max. | 0.2% Max. |
| 2 | 70% | 3-5% | 0.1% Max. | 0.05% Max. | 0.2% Max. |