forged steel round bar 1)Material:C45,42CrMo4,45CrMo,34CrNiMo and so on 2) ... /+10mmRough turned, tolerance of dia. -0/+3mm Heat treatment Normalized, Q+T, Annealed UTSep 1921-84, Group 3, Class C/cOr ... request Other qualities could also be supplied forged steel round bar