Oerlikon Basinox 25 10 4 N description: BASINOX 25 10 4 N is a basic-coated MMA electrode for welding ferritic-austenitic duplex steels with PREN > 40, "Superduplex", such as e.g. UNS S32550 – UNS S32760. The deposited weld metal has high strength, toughness and very good resistance to pitting and stress corrosion cracking Used to fabricate components and pipework in the off-shore oil and gas industry and more generally for vessels and pipework in the chemical industry. Easy slag release and well-suited for positional welding. Low-hydrogen electrode suitable for SUPERDUPLEX Stainless Steel welding.