SAF Lexal G 25 10 4 N description: LEXAL G 25 10 4 N is used for the welding of Super-Duplex stainless steels. Mainly used in Offshore applications, paper industry, oil industry and artificial manure production. This type is often used for root pass welding of 22%Cr standard duplex steels for critical applications, also for the welding of low carbon super martensitic 13%Cr steels.