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ASTM B596 Au-Cu vs. Nuclear Grade Hafnium

Both ASTM B596 Au-Cu and nuclear grade hafnium are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM B596 Au-Cu and the bottom bar is nuclear grade hafnium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
78
Elongation at Break, % 4.3 to 17
25
Poisson's Ratio 0.41
0.26
Shear Modulus, GPa 36
31
Tensile Strength: Ultimate (UTS), MPa 450 to 620
350

Thermal Properties

Latent Heat of Fusion, J/g 77
130
Specific Heat Capacity, J/kg-K 150
140
Thermal Expansion, µm/m-K 14
5.9

Otherwise Unclassified Properties

Density, g/cm3 18
13

Common Calculations

Stiffness to Weight: Axial, points 3.1
3.3
Stiffness to Weight: Bending, points 8.5
11
Strength to Weight: Axial, points 6.8 to 9.4
7.4
Strength to Weight: Bending, points 7.1 to 8.8
8.4
Thermal Shock Resistance, points 22 to 30
55

Alloy Composition

Copper (Cu), % 9.0 to 11
0
Gold (Au), % 89 to 91
0
Hafnium (Hf), % 0
99.8 to 100
Residuals, % 0
0 to 0.23