Zircaloy-4

Cladding & Structural

ρ = 6.56 g/cm³

Zirconium alloy cladding used primarily in PWRs. No nickel content, which improves hydrogen pickup resistance in PWR coolant chemistry.

Composition

Nuclide / Element	Fraction
Zirconium	0.981900
Tin	0.015000
Iron	0.002100
Chromium	0.001000

Code output

MCNP

c Zircaloy-4
c Density: 6.56 g/cm3 (use -6.56 on cell card)
c Weight fractions (nominal composition)
m10   40000.80c -0.9819  $ Zr (balance)
      50000.80c -0.0150  $ Sn
      26000.80c -0.0021  $ Fe
      24000.80c -0.0010  $ Cr

SCONE: build nuclearData.materials entries from these nuclides. See SCONE nuclear data and library reference.

Notes

Nominal midrange composition. Standard PWR fuel cladding and structural material. No Ni content distinguishes it from Zircaloy-2.

← Back to Materials Library