Component

Wt. %

Fe + Cr

0.2

Hf

Max 4.5

Nb

2.5

O

0.16

Zr

Min 95.5

Physical Properties

Metric

English

Comments

Density

6.44 g/cc

0.233 lb/in3

Mechanical Properties

Tensile Strength, Ultimate

Min 510 MPa

Min 74000 psi

Tensile Strength, Yield

Min 345 MPa

Min 50000 psi

0.2% YS

Elongation at Break

20 %

20 %

in 50 mm

Modulus of Elasticity

97.9 GPa

14200 ksi

Poisson's Ratio

0.33

0.33

Shear Modulus

34.5 GPa

5000 ksi

Electrical Properties

Electrical Resistivity

5.5e-005 ohm-cm

5.5e-005 ohm-cm

Thermal Properties

CTE, linear 20°C

6.3 μm/m-°C

3.5 μin/in-°F

at 25°C

Specific Heat Capacity

0.285 J/g-°C

0.0681 BTU/lb-°F

Thermal Conductivity

17.1 W/m-K

119 BTU-in/hr-ft2-°F

Melting Point

1840 °C

3340 °F