What is the difference between cast iron and cast iron?
The essential difference is that the chemical composition is different. In engineering, it is generally believed that carbon content above 2% is iron, and below this value is steel.As a result of different ingredients, so the performance of the organization is not the same, in general, steel plasticity and toughness better, showing elongation, cross-section shrinkage and impact toughness, iron mechanical performance of hard and brittle.Some cast iron also has some special properties, so it must be analyzed in detail.
The main difference between cast steel and cast iron is that the standard of the process is different, that is, the content of carbon in the chemical composition of the cast steel is less than 2%, while the cast iron is higher than 2%. Because of the different components, so the organization performance is not the same, generally speaking, the plasticity and toughness of the steel is good, elongation and section shrinkage rate and impact toughness, and mechanical properties of cast iron is hard and brittle, some cast iron has some special properties and uses.
Carbon steel, good toughness, so the use of steel than iron, steel not only has good plasticity, and steel products with high strength, elongation and other mechanical properties are generally better than cast iron, ductile cast iron, is a kind of high strength cast iron material developed in 50s twentieth Century, the comprehensive the performance close to steel, it is based on its excellent performance, has been successfully used in casting complex stress, strength, toughness and wear resistance requirements of the higher parts. Nodular cast iron has developed rapidly to be second only to grey cast iron and widely used as cast iron material. The so-called "iron instead of steel", mainly refers to ductile iron.
