Hastelloy N will not be used by any of the companies building commercial reactor. Hastelloy N would have to go threw a whole lot of regulation to allowed to use

Hastelloy N will not be used by any of the companies building commercial reactor. Hastelloy N would have to go threw a whole lot of regulation to allowed to use in modern reactor. The data gathered on its properties would not be sufficient for a modern regulator, and such a qualification would take way to long. Also, there is not really a supplier for commercial Hastelloy N. Their focus is on using 'regular' nuclear grade materials that have already been approved. This is THE single most important focus of those reactor design. In the choice of containment, reactor type, salt solution and so on, they all picked sub-optimal things in order to make it threw the regulator and have a existing supply chain.