Zirconium based alloy, cladding tube and flat product produced therefrom, and method for making a component for nuclear fuel rod cladding or nuclear fuel assembly using the same

摘要

The invention concerns a zirconium alloy, containing, besides unavoidable impurities, 0.02 to 1 % iron, 0.8 to 2.3 % niobium, less than 2000 ppm of tin, less than 2000 ppm of oxygen, less than 100 ppm of carbon, from 5 to 35 ppm of sulphur and less than a total of 0.25 % of chromium and/or vanadium. The ratio of niobium content over iron content, optionally completed with chromium and/or vanadium content, is less than 3. The invention is applicable to nuclear reactor components.