Zirconium based alloy for nuclear reactor

The invention relates to a Zirconium-based alloy for nuclear reactor, which has the following components: 0.65 to 1.20 weight percent of Stannum, 0.20 to 0.45 weight percent of Niobium, 0.20 to 0.40 weight percent of Ferrum, 0.01 to 0.20 weight percent of Chromium, 0.06 to 0.15 weight percent of Oxygen, one or many kinds of 0.002 to 0.20 weight percent of Nickel, Molybdenum or Vanadium, smaller than 0.015 weight percent of Carbon, smaller than 0.008 weight percent of Nitrogen, and the remaining content is that of Zirconium. The Zirconium-based alloy of the invention has the advantages of the excellent uniform corrosion resistance and nodular corrosion resistance, the higher creep resistance and anti-fatigue property and the anti-irradiation growth performance.