1.4031 1.4031 is typically used for wrought products, it has a low ductility and a fairly high electrical conductivity. Grades: 1.4031 X30Cr13 1.2080 X20Cr13 1.2083 X15CR13 1.4021 420 1.4028 410 420S45 416 420S37 1.4034 420S29 440B