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NS315


NS315 is an alloy with better resistance to stress corrosion and other properties under the working condition of heat transfer tube of PWR evaporator. Since 1982, this alloy has been used to manufacture U-shaped evaporator tubes for PWR. At present, it has been widely used in evaporators of PWR nuclear power plants abroad and has been applied to some components of reactor internals. At present, this alloy is also used in the evaporator heat transfer tubes of large PWR nuclear power plants that have been imported from abroad. Nickel base superalloy NS315 has excellent corrosion resistance and thermal stability. Excellent corrosion resistance to fluoride and hot nitric acid; It has excellent corrosion resistance to acid solution and stress corrosion in chloride and polysulfide carbonate media; It has good resistance to crevice corrosion in alkaline medium, oxidation and chloride corrosion in high-temperature atmosphere, etc.

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