... condition:forged, forged + rough turned, annealed, quenched + tempere 1.Grade: 45#(SAE1045/C45)2.Chemical Composition in % :C:0.4~0 ... .Delivery condition: forged, forged + rough turned, annealed, quenched + tempered . 7.Technical Data: Chemical Composition, Physical Properties and Mechanical Testing according to ... Ultrasonic test according to SEP 1921-84 G3 C/c 45# forged steel round bar manufacutrer