# Yield Strength

Yield strength, abbreviated as \(\sigma\) (Greek symbol sigma), also known as yield stress, is the minimum stress that leads to permanent deformation of the material.

### Yield Strength formula

\(\large{ \sigma = \frac{F}{A} }\)

Where:

\(\large{ \sigma }\) (Greek symbol sigma) = yield strength

\(\large{ A }\) = cross-section area

\(\large{ F }\) = force

Solve for:

\(\large{ A = \frac{F}{\sigma} }\)

\(\large{ F = \sigma \; A }\)

Tags: Equations for Strain and Stress Equations for Welded Stress and Strain