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Nuclear Grade Hafnium vs. K93603 Alloy

Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while K93603 alloy belongs to the iron 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 K93603 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 78
190
Poisson's Ratio 0.26
0.3
Shear Modulus, GPa 31
72
Tensile Strength: Ultimate (UTS), MPa 350
490 to 810

Thermal Properties

Latent Heat of Fusion, J/g 130
270
Specific Heat Capacity, J/kg-K 140
460
Thermal Expansion, µm/m-K 5.9
12

Otherwise Unclassified Properties

Density, g/cm3 13
8.2

Common Calculations

Stiffness to Weight: Axial, points 3.3
13
Stiffness to Weight: Bending, points 11
23
Strength to Weight: Axial, points 7.4
17 to 27
Strength to Weight: Bending, points 8.4
17 to 24
Thermal Shock Resistance, points 55
15 to 25

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.25
Cobalt (Co), % 0
0 to 0.5
Hafnium (Hf), % 99.8 to 100
0
Iron (Fe), % 0
61.8 to 64
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.6
Nickel (Ni), % 0
36
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.1
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0 to 0.23
0