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Nuclear Grade Hafnium vs. C55282 Copper

Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while C55282 copper belongs to the copper alloys. There are 13 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is C55282 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 78
110
Poisson's Ratio 0.26
0.34
Shear Modulus, GPa 31
39
Tensile Strength: Ultimate (UTS), MPa 350
180

Thermal Properties

Latent Heat of Fusion, J/g 130
190
Specific Heat Capacity, J/kg-K 140
400
Thermal Expansion, µm/m-K 5.9
16

Otherwise Unclassified Properties

Density, g/cm3 13
8.6

Common Calculations

Stiffness to Weight: Axial, points 3.3
6.8
Stiffness to Weight: Bending, points 11
18
Strength to Weight: Axial, points 7.4
5.8
Strength to Weight: Bending, points 8.4
8.2
Thermal Shock Resistance, points 55
7.4

Alloy Composition

Copper (Cu), % 0
87.7 to 88.7
Hafnium (Hf), % 99.8 to 100
0
Phosphorus (P), % 0
6.5 to 7.0
Silver (Ag), % 0
4.8 to 5.2
Residuals, % 0
0 to 0.15