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TEL: +86-372-3175078
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News for Silicon Managese

Mn alloys are mostly used in steelmaking and foundry activities. 

Some 30 % of the manganese used today in steelmaking is still used for its properties as a deoxidant and a sulphide 

former. In this last case it combines with sulphur avoiding the formation of iron sulphides, which 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 % 

Mn depending on grades as Mn 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 Mn alloys called ferro-manganese (FeMn) and silico-manganese (SiMn). Silico-manganese 

adds additional silicon which is a stronger deoxidizer and which also helps to improve some mechanical properties of steel. 

In each family carbon is controlled and is lowered when producing refined grades. Nitrogen, Boron, Titanium, 

Phosphorus are elements which can be controlled depending on requested specification.