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.
ASTM A572 Gr.65 Steel machining parts is a high strength low alloy steel used in a variety of structure applications. ASTM A572 Gr.65 Steel work can be joined by riveting,
ASTM A29/A29M 5130 alloy steel is a quenching and tempering steel. 5130 can also be used after normalizing. After the treatment, ASTM A29/A29M 5130 round bar has excellent strength and hardenability.