Q235A is different from 35# steel. \x0d\Q235A is carbon structural steel, with tensile strength of Mpa 375-460 and yield strength of Mpa 185-235. \x0d\35# steel is high-quality carbon structural steel: the tensile strength Mpa is greater than 530; Yield strength Mpa 3 15. \x0d\ Their general uses: \x0d\Q235A is used to manufacture metal structural parts, carburized parts or carbonitriding parts with low core strength requirements, and \x0d\35# steels such as tie rods, connecting rods, hooks, bolts, nuts, sleeves and shafts are used to manufacture mechanical parts for hot forging and hot stamping, and steel for cold drawing and cold heading.