Forged blocks Size:150mmx150mm to 550mmx550mm Length:3m and up or the ... ,25CrMo4,34CrNiMo6,39CrNiMo3,17NiCrMo6,18CrNiMo7-6,S355J2G3,ASTM A105,ST52-3,16MnCr5,20MnCr5,16MnCrS5,20MnCrS5,21CrMoV511,56NiCrMoV7,18NiCrMo5,30CrNiMo8,34NiCrMo16,41CrAlNi7 ... D/d,Mill certificate as per EN 10204/3.1.B;Manufacturer:Jiangsu Zhuhong Forging Co.,Ltd Forged Blocks 16MnCr5/S355J2G3/AISI4140