For material strengths up to about 600MPa, shear strength increases gradually to almost double that for the low carbon steel. Carbon steel is a combination of iron and carbon, and often contains other elements with low maximum percentages, such as copper (0. a cutting OW a. .
. The factor of 0. The shear limit is related to the ultimate stress by different theories and the most current equations are either the von Mises which says that max R 3 0.
5 ms. Although many materials, including steel, can have high stiffness and tensile strength, the real benefits of carbon fiber are its strength-to-weight ratio and stiffness-to-weight ratio due to its low density (around 1. Elongation.