The Yield Strength of Brass constant displays the value of the yield strength for brass UNS C26000 (95 MPa). 

Yield strength or yield stress is defined as the stress at which a material begins plastic deformation. The yield strength of brass UNS C26000 is 95 MPa. 

Reference

Material Properties (https://material-properties.org/brass-density-strength-hardness-melting-point/)