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Type 1 Niobium vs. C22000 Bronze

Type 1 niobium belongs to the otherwise unclassified metals classification, while C22000 bronze belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is Type 1 niobium and the bottom bar is C22000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 29
1.9 to 45
Poisson's Ratio 0.4
0.33
Shear Modulus, GPa 38
42
Tensile Strength: Ultimate (UTS), MPa 140
260 to 520
Tensile Strength: Yield (Proof), MPa 82
69 to 500

Thermal Properties

Latent Heat of Fusion, J/g 320
200
Specific Heat Capacity, J/kg-K 270
390
Thermal Conductivity, W/m-K 52
190
Thermal Expansion, µm/m-K 7.3
18

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.7
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
3.7 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 32
21 to 1110
Stiffness to Weight: Axial, points 6.8
7.2
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 4.6
8.1 to 17
Strength to Weight: Bending, points 7.1
10 to 17
Thermal Diffusivity, mm2/s 23
56
Thermal Shock Resistance, points 13
8.8 to 18

Alloy Composition

Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
89 to 91
Hafnium (Hf), % 0 to 0.020
0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.0050
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Molybdenum (Mo), % 0 to 0.010
0
Nickel (Ni), % 0 to 0.0050
0
Niobium (Nb), % 99.7 to 100
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.015
0
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0 to 0.030
0
Zinc (Zn), % 0
8.7 to 11
Zirconium (Zr), % 0 to 0.020
0
Residuals, % 0
0 to 0.2