# Metals/Alloys - Elastic and Shear Modulus

## Elastic and Shear Modulus

The mechanical properties of steels and alloys are a result from not only the chemical composition, but also their methods of manufacture. The potential for quality, durability and performance of materials are valuable to the structural designer who may want to consider a variety of different materials for a design. It can't be stressed enough that the provided data is a guide only and a good engineer will seek guidance from the manufacturer.

**Elastic Modulus**

The Elastic or Young's modulus ( E ) describes tensile elasticity, or the tendency of an object to deform along an axis when opposing forces are applied along that axis; it is defined as the ratio of tensile stress to tensile strain.

**Shear Modulus**

Shear Modulus or the Modulus of Rigidity is the coefficient of elasticity for a shearing or torsion force. It is defined as the ratio of shear stress to shear strain.