What is the yield strength of mild steel?

The yield strength of mild steel is 248 megapascal. Yield strength quantitatively defines the stress at which plastic deformation begins in mild steel.

The yield strength of mild steel is 248 megapascal. Yield strength is the stress at which a material has undergone an arbitrarily selected amount of deformation, often 0.2 percent.

This indicates that when the stress applied on mild steel is 248 megapascal, it shows a measurable amount of deformation, that is, 0.2 percent.The main purpose of yield strength is to describe and define the stress at which plastic deformation begins in a material, such as mild steel.