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Type 1 Niobium vs. S31060 Stainless Steel

Type 1 niobium belongs to the otherwise unclassified metals classification, while S31060 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is Type 1 niobium and the bottom bar is S31060 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 79
190
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 29
46
Poisson's Ratio 0.4
0.27
Shear Modulus, GPa 38
78
Tensile Strength: Ultimate (UTS), MPa 140
680
Tensile Strength: Yield (Proof), MPa 82
310

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 7.3
16

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Water, L/kg 160
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
260
Resilience: Unit (Modulus of Resilience), kJ/m3 32
250
Stiffness to Weight: Axial, points 6.8
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 4.6
24
Strength to Weight: Bending, points 7.1
22
Thermal Diffusivity, mm2/s 23
4.0
Thermal Shock Resistance, points 13
15

Alloy Composition

Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.010
0.050 to 0.1
Cerium (Ce), % 0
0 to 0.070
Chromium (Cr), % 0
22 to 24
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
61.4 to 67.8
Lanthanum (La), % 0
0 to 0.070
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0 to 0.010
0
Nickel (Ni), % 0 to 0.0050
10 to 12.5
Niobium (Nb), % 99.7 to 100
0
Nitrogen (N), % 0 to 0.010
0.18 to 0.25
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.0050
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.030
0
Zirconium (Zr), % 0 to 0.020
0