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C37100 Brass vs. 7020 Aluminum

C37100 brass belongs to the copper alloys classification, while 7020 aluminum belongs to the aluminum 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 C37100 brass and the bottom bar is 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
70
Elongation at Break, % 8.0 to 40
8.4 to 14
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
26
Shear Strength, MPa 260 to 300
110 to 230
Tensile Strength: Ultimate (UTS), MPa 370 to 520
190 to 390
Tensile Strength: Yield (Proof), MPa 150 to 390
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 170
380
Maximum Temperature: Mechanical, °C 120
210
Melting Completion (Liquidus), °C 900
650
Melting Onset (Solidus), °C 890
610
Specific Heat Capacity, J/kg-K 380
880
Thermal Conductivity, W/m-K 120
150
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
39
Electrical Conductivity: Equal Weight (Specific), % IACS 30
120

Otherwise Unclassified Properties

Base Metal Price, % relative 23
9.5
Density, g/cm3 8.0
2.9
Embodied Carbon, kg CO2/kg material 2.7
8.3
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 120
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 750
110 to 690
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 20
47
Strength to Weight: Axial, points 13 to 18
18 to 37
Strength to Weight: Bending, points 14 to 18
25 to 41
Thermal Diffusivity, mm2/s 39
59
Thermal Shock Resistance, points 12 to 17
8.3 to 17

Alloy Composition

Aluminum (Al), % 0
91.2 to 94.8
Chromium (Cr), % 0
0.1 to 0.35
Copper (Cu), % 58 to 62
0 to 0.2
Iron (Fe), % 0 to 0.15
0 to 0.4
Lead (Pb), % 0.6 to 1.2
0
Magnesium (Mg), % 0
1.0 to 1.4
Manganese (Mn), % 0
0.050 to 0.5
Silicon (Si), % 0
0 to 0.35
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 36.3 to 41.4
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.25
Residuals, % 0
0 to 0.15