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Nuclear Grade Hafnium vs. C79600 Nickel Silver

Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while C79600 nickel silver belongs to the copper alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is C79600 nickel silver.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 78
110
Elongation at Break, % 25
15
Poisson's Ratio 0.26
0.3
Shear Modulus, GPa 31
43
Tensile Strength: Ultimate (UTS), MPa 350
480
Tensile Strength: Yield (Proof), MPa 170
300

Thermal Properties

Latent Heat of Fusion, J/g 130
180
Specific Heat Capacity, J/kg-K 140
390
Thermal Expansion, µm/m-K 5.9
21

Otherwise Unclassified Properties

Density, g/cm3 13
7.9

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
63
Resilience: Unit (Modulus of Resilience), kJ/m3 180
400
Stiffness to Weight: Axial, points 3.3
7.8
Stiffness to Weight: Bending, points 11
20
Strength to Weight: Axial, points 7.4
17
Strength to Weight: Bending, points 8.4
17
Thermal Shock Resistance, points 55
15

Alloy Composition

Copper (Cu), % 0
43.5 to 46.5
Hafnium (Hf), % 99.8 to 100
0
Lead (Pb), % 0
0.8 to 1.2
Manganese (Mn), % 0
1.5 to 2.5
Nickel (Ni), % 0
9.0 to 11
Zinc (Zn), % 0
38.3 to 45.2
Residuals, % 0
0 to 0.5