... Scr430, SCr435,41Cr4 etc diameter:30-150mm MQO:5MT alloy steel round bar material:45CrNiMov, SCr420,Scr430, SCr435,41Cr4 etcdiameter:30-150mmMQO ... :5MT (1) alloy steel bar:material: SCr440,astm 5140,5145,SCr445,5150,SCM415,18CrMo4 ... ,8620,SNCM220,SNCM439 diameter:30-150mm (2) carbon steel round bar material: 1020,S20C, 1045,S45C1016,1566,SWRH67B diameter: ...