Hastelloy-N

Cladding & Structural

Density: 8.86 g/cm³

Nickel-molybdenum alloy developed for molten salt compatibility. Primary structural material for the MSRE and proposed MSR designs.

Composition

Nuclide / Element	Fraction
Nickel	0.710000
Molybdenum	0.160000
Chromium	0.070000
Iron	0.050000
Silicon	0.005000
Manganese	0.005000

Code output

MCNP

c Hastelloy-N (INOR-8)
c Density: 8.86 g/cm3 (use -8.86 on cell card)
c Weight fractions (nominal composition)
m14   28000.80c -0.7100  $ Ni (balance)
      42000.80c -0.1600  $ Mo
      24000.80c -0.0700  $ Cr
      26000.80c -0.0500  $ Fe
      14000.80c -0.0050  $ Si
      25055.80c -0.0050  $ Mn

Notes

Also known as INOR-8 or Alloy N. Developed at ORNL for molten fluoride salt service. Modified Hastelloy-N with Ti additions improves irradiation resistance.

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