Compared to standard duplex steels, they are characterised by higher Cr, Mo and N content which increase resistance to corrosion. These alloys are particularly suitable for use in aggressive chlorides environments.

Valbruna Grade W.N. AISI UNS EN
V257M 1.4410 F53 S32750 X2CRNIMON25-7-4
V257MWU 1.4501 F55 S32760 X2CRNIMOCUWN25-7-4