Barre tonde in acciaio 3505 pz ; 6100 mm. Cad 27,40-27,50 mm. Diameter range Cold drawn, QT, steel round bars. H9 tolerance According to the below characteristics Tensile St. 830-900 N/ mm2 Yield 660 N/mm 2 Elong. 12% min. HRC 23-34