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1070A Aluminum vs. C87800 Brass

1070A aluminum belongs to the aluminum alloys classification, while C87800 brass belongs to the copper alloys. There are 28 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 1070A aluminum and the bottom bar is C87800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 2.3 to 33
25
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Tensile Strength: Ultimate (UTS), MPa 68 to 140
590
Tensile Strength: Yield (Proof), MPa 17 to 120
350

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 640
920
Melting Onset (Solidus), °C 640
820
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 230
28
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
6.7
Electrical Conductivity: Equal Weight (Specific), % IACS 200
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
27
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1200
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 18
130
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
540
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 7.0 to 14
20
Strength to Weight: Bending, points 14 to 22
19
Thermal Diffusivity, mm2/s 94
8.3
Thermal Shock Resistance, points 3.1 to 6.3
21

Alloy Composition

Aluminum (Al), % 99.7 to 100
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 0 to 0.030
80 to 84.2
Iron (Fe), % 0 to 0.25
0 to 0.15
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0 to 0.030
0 to 0.010
Manganese (Mn), % 0 to 0.030
0 to 0.15
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
3.8 to 4.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 0 to 0.070
12 to 16
Residuals, % 0
0 to 0.5