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C87400 Brass vs. 5070 Aluminum

C87400 brass belongs to the copper alloys classification, while 5070 aluminum belongs to the aluminum alloys. There are 28 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 C87400 brass and the bottom bar is 5070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 21
20
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 41
26
Tensile Strength: Ultimate (UTS), MPa 390
300
Tensile Strength: Yield (Proof), MPa 160
140

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 920
640
Melting Onset (Solidus), °C 820
550
Specific Heat Capacity, J/kg-K 400
900
Thermal Conductivity, W/m-K 28
130
Thermal Expansion, µm/m-K 18
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.7
31
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
100

Otherwise Unclassified Properties

Base Metal Price, % relative 27
9.5
Density, g/cm3 8.3
2.7
Embodied Carbon, kg CO2/kg material 2.7
8.8
Embodied Energy, MJ/kg 44
150
Embodied Water, L/kg 310
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
51
Resilience: Unit (Modulus of Resilience), kJ/m3 120
150
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
50
Strength to Weight: Axial, points 13
31
Strength to Weight: Bending, points 14
37
Thermal Diffusivity, mm2/s 8.3
53
Thermal Shock Resistance, points 14
14

Alloy Composition

Aluminum (Al), % 0 to 0.8
92.4 to 95.7
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 79 to 85.5
0 to 0.25
Iron (Fe), % 0
0 to 0.4
Lead (Pb), % 0 to 1.0
0
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0
0.4 to 0.8
Silicon (Si), % 2.5 to 4.0
0 to 0.25
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 12 to 16
0.4 to 0.8
Residuals, % 0
0 to 0.15