Indsil Hydro Power And Manganese Limited

R S Puram, Coimbatore, Tamil Nadu

Low carbon and ultra low carbon silico manganese improve the productivity in the manufacture of stainless steel and special steel by eliminating decarburization in final step. The use of low carbon silico manganese in stainless steels and alloy steels provides a more economical production route, Where a combination of manganese and silicon is required in a low carbon steel product.

Manganese alloys are mostly used in steelmaking and foundry activities. Some 30% of the manganese used today in steelmaking is used to promote the formation of sulphides as a deoxidant. In this last case it combines with sulphur avoiding the formation of iron sulphides. These sulphides are low melting point phases which become liquid at hot rolling temperatures and which, consequently, generate surface cracking.

The other 70% of the manganese is used purely as an alloying element. Steels usually contain from 0, 2% to 2% manganese depending on grades as manganese is the cheapest alloying element among those which enhance some key mechanical properties like strength and toughness. In the specific case of stainless steel it can substitute expensive nickel in some austenitic grades called 200 series.

There are two families of manganese alloys called ferro-manganese (FeMn) and silico-manganese (SiMn). Silicomanganese adds additional silicon which is a stronger deoxidant. Nitrogen, boron, titanium, phosphorus are elements which can be controlled depending on requested specification. A very specific application of refined manganese alloys is a constituent in the coating of welding electrodes.

Manganese alloys are mostly used in steelmaking and foundry activities. Some 30% of the manganese used today in steelmaking is used to promote the formation of sulphides as a deoxidant. In this last case it combines with sulphur avoiding the formation of iron sulphides. These sulphides are low melting point phases which become liquid at hot rolling temperatures and which, consequently, generate surface cracking.

Low carbon and ultra low carbon silico manganese improve the productivity in the manufacture of stainless steel and special steel by eliminating decarburization in final step. The use of low carbon silico manganese in stainless steels and alloy steels provides a more economical production route, Where a combination of manganese and silicon is required in a low carbon steel product.

There are two families of manganese alloys called ferro-manganese (FeMn) and silico-manganese (SiMn). Silicomanganese adds additional silicon which is a stronger deoxidant. Nitrogen, boron, titanium, phosphorus are elements which can be controlled depending on requested specification. A very specific application of refined manganese alloys is a constituent in the coating of welding electrodes.

The use of low carbon silico manganese in stainless steels and alloy steels provides a more economical production route, Where a combination of manganese and silicon is required in a low carbon steel product.