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C55181 Copper vs. Nuclear Grade Hafnium

C55181 copper belongs to the copper alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C55181 copper and the bottom bar is nuclear grade hafnium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
78
Poisson's Ratio 0.34
0.26
Shear Modulus, GPa 40
31
Tensile Strength: Ultimate (UTS), MPa 200
350

Thermal Properties

Latent Heat of Fusion, J/g 190
130
Specific Heat Capacity, J/kg-K 410
140
Thermal Expansion, µm/m-K 16
5.9

Otherwise Unclassified Properties

Density, g/cm3 8.5
13

Common Calculations

Stiffness to Weight: Axial, points 7.0
3.3
Stiffness to Weight: Bending, points 19
11
Strength to Weight: Axial, points 6.5
7.4
Strength to Weight: Bending, points 8.9
8.4
Thermal Shock Resistance, points 8.2
55

Alloy Composition

Copper (Cu), % 92.4 to 93
0
Hafnium (Hf), % 0
99.8 to 100
Phosphorus (P), % 7.0 to 7.5
0
Residuals, % 0
0 to 0.23