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EN 1.6311 Steel vs. Nuclear Grade Hafnium

EN 1.6311 steel belongs to the iron alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is EN 1.6311 steel and the bottom bar is nuclear grade hafnium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
78
Elongation at Break, % 19
25
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
31
Tensile Strength: Ultimate (UTS), MPa 650
350
Tensile Strength: Yield (Proof), MPa 490
170

Thermal Properties

Latent Heat of Fusion, J/g 250
130
Specific Heat Capacity, J/kg-K 470
140
Thermal Expansion, µm/m-K 13
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.9
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
73
Resilience: Unit (Modulus of Resilience), kJ/m3 650
180
Stiffness to Weight: Axial, points 13
3.3
Stiffness to Weight: Bending, points 24
11
Strength to Weight: Axial, points 23
7.4
Strength to Weight: Bending, points 21
8.4
Thermal Shock Resistance, points 19
55

Alloy Composition

Carbon (C), % 0.15 to 0.23
0
Chromium (Cr), % 0 to 0.5
0
Copper (Cu), % 0 to 0.2
0
Hafnium (Hf), % 0
99.8 to 100
Iron (Fe), % 95.9 to 98
0
Manganese (Mn), % 1.0 to 1.5
0
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 0.4 to 0.8
0
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0
Vanadium (V), % 0 to 0.020
0
Residuals, % 0
0 to 0.23