The C45 and Ck45 medium carbon hot rolled steel coil serves manufacturers of forged and machined components that are hardened after forming. Zhengde controls the carbon range from 0.42 to 0.50 percent and manages rolling and coiling temperatures so hardness stays uniform from the head to the tail of every coil, giving machinists predictable tool life and forgers consistent flow behavior. A spheroidize annealing option transforms the carbide into a fine globular structure that
