... 300-1200mm Length :any length ok Grade:45#,42CRMO ,SAE9840 round bar Va steelSIZE : 300-1200MMGrade:39NiCrMo3Similar grade:36CrNiMo4,SAE9840Chemical compostion:C ... Carbon Steel:C45,CK45, C60,CK15,Alloy Steel: ST52-3,ASTM A105,42CrMo4,S355J2G3,20NiCrMo2,16MnCr5,20MnCr5,34CrNiMo6,18CrNiMo7-6,39CrNiMo3 ... ,40NiCrMo7,40NiCrMo3;40CrMoV4-6Manufacturer:Jiangsu Zhuhong Forging Co.,Ltd. round bar var steel