... : 300-1200mm Length :any length ok Grade:45#,42CRMO ,SAE9840 round bar Va steelSIZE : 300-1200MMGrade:39NiCrMo3Similar grade:36CrNiMo4,SAE9840Chemical compostion:C ... ,41CrAlMo7,40NiCrMo7,40NiCrMo3;40CrMoV4-6Manufacturer:Jiangsu Zhuhong Forging Co.,Ltd. round bar var steel