The delivery condition 070M20 round bar are:hot rolled or forged + Normalizing+Tempering+Quenching and tempering+Normalizing and tempering+Annealing .The size for 070M20 round bar which available for our KUNFENG steel are Ф 5-80.
50Cr round bar is alloy structural round bars under the standard of GB/T 3077-1988.If you need 50Cr hot rolled and forged round bar,please be free to contact us.