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
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