Basic compositions of Steel, Grades of Steel, Critical Temperatures, Iron-Carbon Equilibrium diagram, etc.

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Steel compositions, grades, critical temperatures, and iron-carbon equilibrium diagram are essential for understanding steel properties.

Basic compositions of steel include iron and carbon, with varying amounts of other elements like manganese, silicon, and nickel.
Grades of steel are classified based on their chemical composition, strength, and other properties. Examples include carbon steel, stainless steel, and tool steel.
Critical temperatures for steel include the melting point, solidus temperature, and various phase transformation temperatures like A1, A3, and Acm.
The iron-carbon equilibrium diagram shows the phases present in steel at different temperatures and carbon concentrations, helping to predict microstructure and properties.

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