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C28000 Muntz Metal vs. Type 3 Niobium

C28000 Muntz Metal 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 (11, in this case) are not shown.

For each property being compared, the top bar is C28000 Muntz Metal and the bottom bar is Type 3 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
100
Elongation at Break, % 10 to 45
23
Poisson's Ratio 0.31
0.4
Shear Modulus, GPa 40
38
Tensile Strength: Ultimate (UTS), MPa 330 to 610
220
Tensile Strength: Yield (Proof), MPa 150 to 370
140

Thermal Properties

Latent Heat of Fusion, J/g 170
310
Specific Heat Capacity, J/kg-K 390
270
Thermal Conductivity, W/m-K 120
42
Thermal Expansion, µm/m-K 21
7.3

Otherwise Unclassified Properties

Density, g/cm3 8.0
8.6
Embodied Water, L/kg 320
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 240
44
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 670
93
Stiffness to Weight: Axial, points 7.2
6.8
Stiffness to Weight: Bending, points 20
18
Strength to Weight: Axial, points 11 to 21
7.2
Strength to Weight: Bending, points 13 to 20
9.5
Thermal Diffusivity, mm2/s 40
18
Thermal Shock Resistance, points 11 to 20
21

Alloy Composition

Carbon (C), % 0
0 to 0.010
Copper (Cu), % 59 to 63
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.070
0 to 0.0050
Lead (Pb), % 0 to 0.3
0
Molybdenum (Mo), % 0
0 to 0.010
Nickel (Ni), % 0
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
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.1
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 0
0 to 0.030
Zinc (Zn), % 36.3 to 41
0
Zirconium (Zr), % 0
0.8 to 1.2
Residuals, % 0 to 0.3
0