Chemical compositions of Martensite and Pearlitic Ball Mild Cast Iron
Mild cast iron is a type of cast iron that tends to be relatively soft, ductile and inexpensive compared to other types of cast iron. It is made up of two distinct microstructural types: martensite and pearlitic. Each type of mild cast iron has different physical properties and chemical compositions. In this article, we will look at the chemical compositions of martensite and pearlitic ball mild cast iron.
The chemical composition of martensite mild cast iron is typically made up of iron (Fe) as the primary element, along with carbon (C) and silicon (Si) as the alloying elements. The carbon content is usually in the range of 0.2-0.6%, while silicon runs between 0.6-1.8%. The remaining elements in martensite mild cast iron typically consist of trace amounts of aluminum (Al), manganese (Mn), phosphorus (P), sulfur (S), and titanium (Ti).
The chemical composition of pearlitic mild cast iron is also comprised of iron (Fe) as the primary element, along with carbon and silicon as the alloying elements. However, the carbon and silicon contents vary slightly from those of martensite mild cast iron. The typical range of carbon in pearlitic mild cast iron is 0.5-0.9%, while the silicon ranges from 1.3-2.2%. As with the martensite mild cast iron, the remaining elements consist of trace amounts of aluminum, manganese, phosphorus, sulfur and titanium.
It is important to note that the chemical composition of both martensite and pearlitic mild cast iron can vary slightly, depending on the specific alloying elements used and the desired properties of the finished product. For instance, the carbon and silicon content may be increased or decreased depending on the desired mechanical properties of the cast iron.
Overall, the chemical composition of mild cast iron varies depending on the type of iron in question. Martensite and pearlitic ball mild cast iron have distinct chemical compositions. The former is primarily iron, carbon and silicon, while the latter is iron, carbon and slightly more silicon than the first. Both alloys will also contain trace elements of manganese, phosphorus, sulfur and titanium. It is important to note that the carbon and silicon contents may be slightly adjusted depending on the application for which the mild cast iron is intended.
