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EN 1.0031 Steel vs. Type 4 Niobium

EN 1.0031 steel belongs to the iron alloys classification, while Type 4 niobium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.0031 steel and the bottom bar is Type 4 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 89
120
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 28
23
Poisson's Ratio 0.29
0.4
Shear Modulus, GPa 73
38
Tensile Strength: Ultimate (UTS), MPa 310
220
Tensile Strength: Yield (Proof), MPa 210
140

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 53
42
Thermal Expansion, µm/m-K 12
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.6
Embodied Water, L/kg 45
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
44
Resilience: Unit (Modulus of Resilience), kJ/m3 120
93
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 11
7.2
Strength to Weight: Bending, points 13
9.5
Thermal Diffusivity, mm2/s 14
18
Thermal Shock Resistance, points 9.8
21

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.010
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 98.8 to 100
0 to 0.010
Manganese (Mn), % 0 to 0.7
0
Molybdenum (Mo), % 0
0 to 0.050
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
98.1 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.025
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.35
0 to 0.0050
Sulfur (S), % 0 to 0.045
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.050
Zirconium (Zr), % 0
0.8 to 1.2