Avesta P16 BASIC description: AVESTA P16 basic is a nickel base electrode with a chemical composition similar to Alloy 59. P16 is specially developed for welding. Outokumpu 654 SMO and other highly alloyed, fully austenitic steels, providing superior resistance to pitting, crevice and stress corrosion cracking in chloride containing enviroments. Corrosion resistance is similar to or better than that of Alloy C-276 (ENiCrMo-4).