Q235 Steel Features and Applications Data Sheet and Specification Q235 Steel Equivalent Q235 steel is a plain carbon structural steel which is widely used in China, Q235 material in Chinese standard GB/T 700 is divided into 4 quality grades Q235A, Q235B, Q235C and Q235D; Density of this steel is 7.85 g/cm3, tensile strength is 370-500 MPa; yield strength is 235 MPa (data are for steel bar or steel plate diameter 16mm). Since its mild steel, it is used directly without heat treatment. See more on theworldmaterialEstimated Reading Time 2 mins Explore furtherQ235 Steel Plate Equivalent Steel Standard -ASTM A36steels -supplierQ235A (GB )