Steel is more elastic.
What is Young’s modulus?
Young’s modulus defines the relationship between stress (force per unit area) and strain (proportional deformation in an object. A solid object deforms when a particular load is applied to it. If the object is elastic, the body regains its original shape when the pressure is removed.
- If the same amount of force is applied to a steel wire and to a wire made of rubber of the same length and cross-sectional area, the extension of the rubber wire is easier than the extension of the steel wire.
- So, it can be said that for a given amount of stress, the strain produced in the steel is comparatively smaller than the strain produced in the rubber and other given materials.