C55 round bar is a medium carbon steel bar known for its durability and strength is used across various industries. Astech Tube, the prominent manufacturer & supplier of high-quality EN9 round bars, DIN 1.0535 hexagon bars and other steel products designed to cater to the needs of the industry. Composed primarily of carbon and manganese, the C55 material chemical composition includes approximately 0.50-0.60% carbon, ensuring exceptional hardness and wear resistance. The bars are produced in a variety of forms, including hot rolled round bars from 20mm to 200mm in diameter and hot forged round bars from 80mm to 1000mm in diameter. They are available in lengths from 3000mm to 10000mm, depending on the size and form.