Abstract/Executive summary One of the tasks of PilotSOEL project is to evaluate the mass scalability of the solid oxide electrolyzers. One of the key components for the stack is the Interconnector Plate (IC). The IC plate usually made from high grade stainless steel has to survive and perform with minimal degradation in very harsh environment [1–4]. Because of the high stack operations temperatures and exposure to hydrogen, oxygen, water steam in high operational temperatures