1.forged alloy bar 15Cr 2.size:300*5000mm 3.EF+LF+VD steel ... Grade:C45,CK45,S45C,45#,S20C,S35C,C60,ST52-3,ASTM A105,42CrMo4,S355J2G3,SAE8620,16MnCr5,20MnCr5,34CrNiMo6,SAE4130,SAE4340,18CrNiMo7 ... ,40NiCrMo3;40CrMoV4-6,34CrAlNi7-10, 30CrNiMo8, 20NiCrMo2-2,18NiCrMo5; forged alloy bar 15Cr