Power generation sector includes gas turbine combined cycle, steam power, nuclear and waste heat recovery plants.

Equipment faces high-temperature creep, thermal fatigue, flue gas corrosion and cooling-medium erosion. 

Superalloys and special stainless steels are selected for boiler, turbine and emission-control hardware where ordinary carbon steel cannot sustain long-term thermal cycling. 

Hot-section gas turbine components such as combustor liners, transition ducts and exhaust segments adopt Hastelloy X (UNS N06002) and Alloy 625. Alloy 718 (UNS N07718) is used for high-temperature bolting, turbine discs and fasteners on steam and gas turbine flanges. For nuclear reactor internals and heat transfer assemblies, Alloy 800H/800HT maintains stability under sustained heat and radiation. 

Stainless steel 316L (S31603) is common for feedwater piping, heat exchanger shells and instrumentation lines. Duplex 2205 is applied in flue-gas desulfurization scrubbers to resist chloride and acid condensate corrosion. 304 stainless steel is used for auxiliary frames, enclosures and low-pressure ducting. These materials resist oxidation, creep and intergranular corrosion, supporting high-efficiency low-emission power units with long design life.