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C64800 Bronze vs. Type 3 Niobium

C64800 bronze belongs to the copper alloys classification, while Type 3 niobium belongs to the otherwise unclassified metals. There are 20 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 C64800 bronze and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 8.0
23
Poisson's Ratio 0.34
0.4
Shear Modulus, GPa 44
38
Tensile Strength: Ultimate (UTS), MPa 640
220
Tensile Strength: Yield (Proof), MPa 630
140

Thermal Properties

Latent Heat of Fusion, J/g 220
310
Specific Heat Capacity, J/kg-K 390
270
Thermal Conductivity, W/m-K 260
42
Thermal Expansion, µm/m-K 17
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.6
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
44
Resilience: Unit (Modulus of Resilience), kJ/m3 1680
93
Stiffness to Weight: Axial, points 7.4
6.8
Stiffness to Weight: Bending, points 18
18
Strength to Weight: Axial, points 20
7.2
Strength to Weight: Bending, points 19
9.5
Thermal Diffusivity, mm2/s 75
18
Thermal Shock Resistance, points 23
21

Alloy Composition

Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0 to 0.090
0
Cobalt (Co), % 1.0 to 3.0
0
Copper (Cu), % 92.4 to 98.8
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 1.0
0 to 0.0050
Lead (Pb), % 0 to 0.050
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0 to 0.5
0 to 0.0050
Niobium (Nb), % 0
98.6 to 99.2
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.5
0
Silicon (Si), % 0.2 to 1.0
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.1
Tin (Sn), % 0 to 0.5
0
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.5
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.5
0