Representation method of steel grade in China (III) : high quality carbon structural steel and high quality carbon spring steel

High quality carbon structural steel adopts two Arabic numerals (the average carbon content is expressed in tens of thousands) or Arabic numerals and element symbols to form a brand. ① For, rimmed steel and semi killed steel, the symbols “F” and “B” shall be added at the end of the grade respectively. For example, the … Continue reading Representation method of steel grade in China (III) : high quality carbon structural steel and high quality carbon spring steel