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Type 1 Niobium vs. S41041 Stainless Steel

Type 1 niobium belongs to the otherwise unclassified metals classification, while S41041 stainless steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is Type 1 niobium and the bottom bar is S41041 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 79
240
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 29
17
Poisson's Ratio 0.4
0.28
Shear Modulus, GPa 38
76
Tensile Strength: Ultimate (UTS), MPa 140
910
Tensile Strength: Yield (Proof), MPa 82
580

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 52
29
Thermal Expansion, µm/m-K 7.3
10

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Water, L/kg 160
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
140
Resilience: Unit (Modulus of Resilience), kJ/m3 32
860
Stiffness to Weight: Axial, points 6.8
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 4.6
32
Strength to Weight: Bending, points 7.1
27
Thermal Diffusivity, mm2/s 23
7.8
Thermal Shock Resistance, points 13
33

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Carbon (C), % 0 to 0.010
0.13 to 0.18
Chromium (Cr), % 0
11.5 to 13
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
84.5 to 87.8
Manganese (Mn), % 0
0.4 to 0.6
Molybdenum (Mo), % 0 to 0.010
0 to 0.2
Nickel (Ni), % 0 to 0.0050
0 to 0.5
Niobium (Nb), % 99.7 to 100
0.15 to 0.45
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Phosphorus (P), % 0
0 to 0.030
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