Question

What is the Young’s modulus $E$ value of steel?

Answer 1

Young's modulus (E) or the modulus of elasticity is a mechanical property that measures the tensile stiffness of a solid material. It establishes the relationship between tensile stress and axial strain (proportional deformation). It can be determined using the formula given below:
$E = \dfrac{\sigma }{\varepsilon }$
Here,
E is Young's modulus.
$\sigma$ is the tensile stress and
$\varepsilon$ is the axial strain.

Complete step-by-step solution:
A solid material will undergo elastic deformation when a small load is applied to it. Elastic deformation is reversible (the material returns to its original shape after the load is removed). Stresses beyond the elastic limit cause a material to deform permanently.

Basically there are four types of steel.
Carbon Steels: This group accounts for 90% of steel production. Carbon Steel is divided into subgroups depending on the amount of carbon in the metal.
Alloy Steels contain alloying elements which are used to influence the metal’s strength, ductility, and corrosion resistance.
Stainless Steels are commonly used in medical equipment, and food processing equipment.
Tool Steels which make excellent cutting and drilling equipment.
The standard value of steel is mostly between 190 GPa– 215 GPa at room temperature.

Note: Elastic modulus is a material property that demonstrates the quality or flexibility of the steel materials. The Young's modulus of metals can vary with the temperature when there is change in the interatomic bonding of the atoms.
Modulus of Elasticity and Young’s Modulus both are the same. The modulus of elasticity is constant. A small piece of rubber and a large piece of rubber have the same elastic modulus.