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7108 Aluminum vs. C33200 Brass

7108 aluminum belongs to the aluminum alloys classification, while C33200 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 7108 aluminum and the bottom bar is C33200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 11
7.0 to 60
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Shear Strength, MPa 210
240 to 300
Tensile Strength: Ultimate (UTS), MPa 350
320 to 520
Tensile Strength: Yield (Proof), MPa 290
110 to 450

Thermal Properties

Latent Heat of Fusion, J/g 380
170
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 630
930
Melting Onset (Solidus), °C 530
900
Specific Heat Capacity, J/kg-K 880
380
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 24
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
26
Electrical Conductivity: Equal Weight (Specific), % IACS 120
28

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 2.9
8.2
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
35 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 620
60 to 960
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 34
11 to 17
Strength to Weight: Bending, points 38
13 to 17
Thermal Diffusivity, mm2/s 59
37
Thermal Shock Resistance, points 16
11 to 17

Alloy Composition

Aluminum (Al), % 92.4 to 94.7
0
Copper (Cu), % 0 to 0.050
65 to 68
Iron (Fe), % 0 to 0.1
0 to 0.070
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 0.7 to 1.4
0
Manganese (Mn), % 0 to 0.050
0
Silicon (Si), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 4.5 to 5.5
29 to 33.5
Zirconium (Zr), % 0.12 to 0.25
0
Residuals, % 0
0 to 0.4