Pressurised water reactors use Inconel tubes. Inconel 600 alloys are high-chromium nickel alloys for steam exchange tubes that are highly resistant to various f

Pressurised water reactors use Inconel tubes. Inconel 600 alloys are high-chromium nickel alloys for steam exchange tubes that are highly resistant to various forms of corrosion (capable of withstanding to 30 years in water with boric acid and 300°C+). The design of these alloys and exchangers is extremely complex and benefits from several thousand years of operational experience. This applies to the alloys themselves, their heat treatment, shaping, interaction with other materials, ageing, etc. It is highly unlikely that these alloys will be abandoned in the next 20-30 years.