This dataset includes relevant data and figures associated with the manuscript "Microstructure and mechanical properties of micro alloyed high strength low carbon structural steels".The Figures are in jpg formats and all relevant data are in .xlsx formats. Data files are labeled according to the corresponding data in the manuscript (e.g., GAIQ.xlsx contains the data used to generate the plots for GAIQ).The dataset is organized in Numerical data for graph folders.Only figures reporting experimental results are included in the dataset. Each folder reports processed Data related to a specific Figure (included in the folder). The labels of the axes and the units are indicated in the headers of individual columns of each .xlsx fileFull context and detailed analysis of the provided raw and processed Data can be found in the manuscript.