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EN 1.7176 Steel vs. Nuclear Grade Hafnium

EN 1.7176 steel belongs to the iron alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 13 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 1.7176 steel and the bottom bar is nuclear grade hafnium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
78
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
31
Tensile Strength: Ultimate (UTS), MPa 670 to 2010
350

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 7.8
13

Common Calculations

Stiffness to Weight: Axial, points 13
3.3
Stiffness to Weight: Bending, points 24
11
Strength to Weight: Axial, points 24 to 71
7.4
Strength to Weight: Bending, points 22 to 45
8.4
Thermal Shock Resistance, points 20 to 59
55

Alloy Composition

Carbon (C), % 0.52 to 0.59
0
Chromium (Cr), % 0.7 to 1.0
0
Hafnium (Hf), % 0
99.8 to 100
Iron (Fe), % 97 to 98.1
0
Manganese (Mn), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.025
0
Residuals, % 0
0 to 0.23