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EN 1.3961 Alloy vs. Nuclear Grade Hafnium

EN 1.3961 alloy 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 (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.3961 alloy 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, % 31
25
Poisson's Ratio 0.3
0.26
Shear Modulus, GPa 72
31
Tensile Strength: Ultimate (UTS), MPa 450
350
Tensile Strength: Yield (Proof), MPa 310
170

Thermal Properties

Latent Heat of Fusion, J/g 270
130
Specific Heat Capacity, J/kg-K 460
140
Thermal Expansion, µm/m-K 1.3
5.9

Otherwise Unclassified Properties

Density, g/cm3 8.2
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
73
Resilience: Unit (Modulus of Resilience), kJ/m3 250
180
Stiffness to Weight: Axial, points 13
3.3
Stiffness to Weight: Bending, points 23
11
Strength to Weight: Axial, points 15
7.4
Strength to Weight: Bending, points 16
8.4
Thermal Shock Resistance, points 130
55

Alloy Composition

Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0 to 0.25
0
Hafnium (Hf), % 0
99.8 to 100
Iron (Fe), % 60.7 to 65
0
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 35 to 37
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.020
0
Residuals, % 0
0 to 0.23