Major systems involved include main steam, main feedwater and startup feedwater, bypass, high-pressure heater circuits,circulating water, condensate, heater drains, exhaust, auxiliary steam, condenser vacuum pumping, turbine-generator lubricating oil, condensate polishing, and secondary circuit sampling systems. These projects involved welding the main steam piping, steam guide pipes, reheat steam piping (cold and hot sections),
This is a highly specialized and important question. The nuclear industry places extremely stringent demands on welding materials, as welding quality is directly linked to the safety, reliability, and lifespan of nuclear facilities. Welding materials used in the nuclear industry must not only possess the excellent mechanical and process properties required in conventional industries, but also possess the following specialized properties: