Carbon steel round bar Export Markets: Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Carbon steel round bar1. hot rolled :Q235 ,10#--45 ... , 65Mn, 50CrVA, 60Si2CrVA 7. hot rolled die steel, bearing steel, carbon tool steel Size: 12mm-250mm,Material: H13, T8, T9, T10 ...