yhrb

var steel Die: 300-1200mm Length :any length ok Grade:45#,42CRMO ,SAE9840 round bar Va steelSIZE : 300-1200MMGrade:39NiCrMo3Similar grade:36CrNiMo4,SAE9840Chemical compostion:C:0.35/0.43; Si:0.15-0.35; Mn:0.50/0.80;P:Max 0.025;S:Max 0.035Cr:0.60/1.00;Mo:0.15/0.25;Ni:0.70/1.00;Standard: EN 10083-3: 2006Temperature:Hot forging 1100-900Soft Annealing:HB Max 241Normalizing:860 Air;Quenching: 850 oil ...