The determination of concentations of compounds or elements are problems for analytical chemistry.
cast iron contain a considerable amount of carbon
Steel is iron mixed with carbon, the amount of carbon changes the specifications of the steel (strength, elasticity,...)
The amount of carbon in iron is greater than 2 percent. Iron, steel is more difficult. Steel is more resistant to damage from iron.
The carbon content in cast iron typically ranges from 2% to 4%. This high carbon content is what gives cast iron its characteristic hardness and brittleness compared to other types of iron.
iron with 1.5% of carbon by volume or less is called carbon steel and above 1.5% it is called cast iron, hardmess increases with the carbon % i.e. cast iron is harder than carbon steel
Free carbon in cast iron refers to carbon that exists in its elemental form within the iron matrix. It appears as graphite flakes or nodules, contributing to the material's unique properties, such as high fluidity during casting and improved machinability. This free carbon distinguishes cast iron from other metals.
Wrought iron has the least amount of carbon among steel, pig iron, wrought iron, and cast iron. Wrought iron typically contains less than 0.1% carbon, making it more ductile and less brittle compared to the others.
It creates voids in the iron.
Steel is an alloy of carbon and iron. If the percentage of carbon is more than 2% then it is called cast iron.
grey
Iron typically contains small amounts of carbon, with most commercial iron containing less than 0.03% carbon. The amount of carbon present can affect the properties of the iron, with higher carbon content resulting in harder, more brittle iron.
Cast iron is primarily composed of iron with a high carbon content (2-4%). The atomic structure consists of iron atoms arranged in a lattice structure, with carbon atoms occupying the spaces between the iron atoms. This combination of iron and carbon gives cast iron its unique properties, such as high strength and good wear resistance.