S45C S20C 45# 炭酸鋼棒 熱巻き棒 MS丸棒10mm

S45C S20C 45# Carbon Steel Bar Hot Rolled Bar MS Round Rod 10mm Product Overview Round steel is categorized into three types: hot rolled, forged, and cold drawn. Hot-rolled round steel specifications range from 5.5-250mm. Small round steel bars (5.5-25mm) are typically supplied as straight bars and commonly used as steel reinforcement, bolts, and various mechanical components. Round steel larger than 25mm is primarily utilized in manufacturing mechanical parts and seamless