Effect of S content fluctuation on mechanical properties of DH36 ship plate

The mechanical properties of DH36 ship plate include yield strength, tensile strength, section shrinkage and impact energy. The mechanical properties of DH36 ship plate depend on microstructure, steel composition and other factors, so the influence of chemical composition fluctuation on mechanical properties should be minimized.

It is found that the impact energy of DH36 ship plate increases first and then decreases with the increase of S content. The yield strength, tensile strength and section shrinkage of DH36 ship plate are nonlinear with S content, and the trend is related to other elements.