MATERIAL FOR NUCLEAR POWER DEVICE, HEAT TRANSFER TUBE FOR STEAM GENERATOR, STEAM GENERATOR, AND NUCLEAR POWER PLANT

摘要

This material for a nuclear power device contains, in percentages by mass, 24.5 to 26.5% Cr, 22 to 40% Ni, not more than 0.04% C, 0.05 to 0.5% Si, 0.05 to 0.52% Mn, not more than 0.18% N, not more than 0.5% Ti, and 0.045 to 0.5% Al. The remainder comprises Fe and unavoidable impurities. This heat transfer tube for a steam generator comprises the material for the nuclear power device. This steam generator is provided with the heat transfer tube for the steam generator. This nuclear power plant is provided with the steam generator.