... 4140,42crmo, scm435,4135,35crmo,13crmo44, 12cr1mov ,15crmo,scm415,16crmo44, 42crmo4 etc.delivery condition:cold drawn ,hot-rolled,forged,hot treatmentdelivery ... of cross-section≥ (35%~60%)Impact absorbing energy≥ (31~110)Hardness (HBS)≤ (179~269)Payment termT/T L/C or we ... Asia, South America, and Africa. Steel round bar C45, S355J2G3, 42CrMo4, 50CrV4