Traded pig iron is an important primary and intermediate product in the manufacturing cycle of iron and steel semi-finished and finished products. Different mechanical properties of the final product are achieved by adding appropriate alloys making pig iron the ideal material for industrial use, above all in aviation, construction and energy, automotive and ship building and mechanical engineering.
Nodular pig iron
Nodular cast iron, also known as ductile iron, is a type of cast iron characterised by spherical graphite nodules in the microstructure. Due to this structure, ductile iron offers special properties, like increase of yield strength and tensile strength, which are the key factors for the given usage.
The absense of trace elements in the pig iron is significant for the production of ductile iron, besides the 5 main elements (C, Si, Mn, P and S).
The Brazilian specialty pig iron qualities excel with outstanding properties as the use of charcoal in the blast furnace results in distinctly lower ratios of trace contaminants.
Grey pig iron
Grey iron is characterised by a laminar graphite structure which has positive effects on properties like thermal conductivity, rigidity, vibration and noise damping
For the production of grey cast iron haematite pig iron as well as steelmaking pig iron is used.
Steelmaking pig iron
Due to the downstream secondary metallurgical treatments in steel plants, qualities of steelmaking pig iron with significantly higher tolerance ranges of the individual elements can be used. Based on their more favorable prices, these pig iron qualities are also used for the production of grey iron.
The use of high-grade pig iron qualities reduces the effort of metallurgical corrections making a considerable contribution to an efficient controlling of costs and material quality in foundries. By selecting special individual charges, we can deliver pig iron in virtually any specialty composition as requested by the customer.