... mm 400 mmWidth 50 mm 800 mmChemical composition (%)DIN standard : C: 0.36 0.42 , Si: 0.90 1.20 , Mn ... .10 1.40 , V: 0.25 0.50 ASTM standard: C: 0.33 0.43 , Si: 0.80 1.20 , Mn ... .30 0.60Hardness ??235 HBSGrain Size : 5 7 Ultrasonic Test : Class C/c Sep 1921 is available .Delivery condition : EFS / ESR , hot forged ...