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EN 1.4729 Stainless Steel vs. Nuclear Grade Hafnium

EN 1.4729 stainless steel belongs to the iron alloys classification, while nuclear grade hafnium belongs to the otherwise unclassified metals. There are 10 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.

For each property being compared, the top bar is EN 1.4729 stainless steel and the bottom bar is nuclear grade hafnium.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 7.6
13
Elastic (Young's, Tensile) Modulus, GPa 190
78
Elongation at Break, % 15
25
Latent Heat of Fusion, J/g 300
130
Poisson's Ratio 0.28
0.26
Shear Modulus, GPa 75
31
Specific Heat Capacity, J/kg-K 490
140
Stiffness to Weight: Axial, points 14
3.3
Stiffness to Weight: Bending, points 25
11
Thermal Expansion, µm/m-K 10
5.9

Alloy Composition

Carbon (C), % 0.3 to 0.5
0
Chromium (Cr), % 12 to 14
0
Hafnium (Hf), % 0
99.8 to 100
Iron (Fe), % 80.4 to 86.7
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 1.0 to 2.5
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.23