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2025 Aluminum vs. C41300 Brass

2025 aluminum belongs to the aluminum alloys classification, while C41300 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 C41300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 15
2.0 to 44
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
42
Shear Strength, MPa 240
230 to 370
Tensile Strength: Ultimate (UTS), MPa 400
300 to 630
Tensile Strength: Yield (Proof), MPa 260
120 to 570

Thermal Properties

Latent Heat of Fusion, J/g 400
200
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
1040
Melting Onset (Solidus), °C 520
1010
Specific Heat Capacity, J/kg-K 870
380
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
30
Electrical Conductivity: Equal Weight (Specific), % IACS 120
31

Otherwise Unclassified Properties

Base Metal Price, % relative 10
29
Density, g/cm3 3.0
8.7
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1130
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
11 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
69 to 1440
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 37
9.6 to 20
Strength to Weight: Bending, points 40
11 to 19
Thermal Diffusivity, mm2/s 58
40
Thermal Shock Resistance, points 18
11 to 22

Alloy Composition

Aluminum (Al), % 90.9 to 95.2
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.9 to 5.0
89 to 93
Iron (Fe), % 0 to 1.0
0 to 0.050
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0.4 to 1.2
0
Silicon (Si), % 0.5 to 1.2
0
Tin (Sn), % 0
0.7 to 1.3
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
5.1 to 10.3
Residuals, % 0
0 to 0.5