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2025 Aluminum vs. C28500 Muntz Metal

2025 aluminum belongs to the aluminum alloys classification, while C28500 Muntz Metal belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 2025 aluminum and the bottom bar is C28500 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
100
Elongation at Break, % 15
20
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 27
40
Shear Strength, MPa 240
320
Tensile Strength: Ultimate (UTS), MPa 400
520
Tensile Strength: Yield (Proof), MPa 260
380

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 190
110
Melting Completion (Liquidus), °C 640
900
Melting Onset (Solidus), °C 520
890
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
33

Otherwise Unclassified Properties

Base Metal Price, % relative 10
22
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1130
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
94
Resilience: Unit (Modulus of Resilience), kJ/m3 450
700
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 46
20
Strength to Weight: Axial, points 37
18
Strength to Weight: Bending, points 40
18
Thermal Diffusivity, mm2/s 58
33
Thermal Shock Resistance, points 18
17

Alloy Composition

Aluminum (Al), % 90.9 to 95.2
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.9 to 5.0
57 to 59
Iron (Fe), % 0 to 1.0
0 to 0.35
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0.4 to 1.2
0
Silicon (Si), % 0.5 to 1.2
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
39.5 to 43
Residuals, % 0
0 to 0.9