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Nuclear Grade Hafnium vs. EN 1.0254 Steel

Nuclear grade hafnium belongs to the otherwise unclassified metals classification, while EN 1.0254 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is nuclear grade hafnium and the bottom bar is EN 1.0254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 78
190
Elongation at Break, % 25
27
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 31
73
Tensile Strength: Ultimate (UTS), MPa 350
430
Tensile Strength: Yield (Proof), MPa 170
250

Thermal Properties

Latent Heat of Fusion, J/g 130
250
Specific Heat Capacity, J/kg-K 140
470
Thermal Expansion, µm/m-K 5.9
12

Otherwise Unclassified Properties

Density, g/cm3 13
7.9

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73
100
Resilience: Unit (Modulus of Resilience), kJ/m3 180
170
Stiffness to Weight: Axial, points 3.3
13
Stiffness to Weight: Bending, points 11
24
Strength to Weight: Axial, points 7.4
15
Strength to Weight: Bending, points 8.4
16
Thermal Shock Resistance, points 55
14

Alloy Composition

Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Hafnium (Hf), % 99.8 to 100
0
Iron (Fe), % 0
97.2 to 100
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0 to 0.040
Vanadium (V), % 0
0 to 0.020
Residuals, % 0 to 0.23
0