Oerlikon Nirod 59 description: NIROD 59 is an S Ni 6059 / ER NiCrMo-13 type solid TlG welding rod, depositing NiCr23Mo16 weld metal. Suitable for use mainly with inert shielding gases. NIROD 59 is used for welding of Ni-alloys with high CrMo content, to match with Alloy 59 base material. Excellent resistance against pitting, chloride-induced stress corrosion cracking, and crevice corrosion in acid sulfur phosphorus and chlorine surroundings. The high level of Mo in Alloy 59 is similar to alloys C276 and C4 but performance in a wide range of more oxidising media is significantly enhanced by increasing Cr to 23%. Total alloying exceeds the level typically present in alloy C22; it is therefore considered suitable for welding this group of alloys.