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4007 Aluminum vs. C87900 Brass

4007 aluminum belongs to the aluminum alloys classification, while C87900 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 4007 aluminum and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.1 to 23
25
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 130 to 160
480
Tensile Strength: Yield (Proof), MPa 50 to 120
240

Thermal Properties

Latent Heat of Fusion, J/g 410
190
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 650
930
Melting Onset (Solidus), °C 590
900
Specific Heat Capacity, J/kg-K 890
390
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
15
Electrical Conductivity: Equal Weight (Specific), % IACS 140
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 2.8
8.1
Embodied Carbon, kg CO2/kg material 8.1
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1160
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
100
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
270
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 49
20
Strength to Weight: Axial, points 12 to 15
17
Strength to Weight: Bending, points 20 to 23
17
Thermal Diffusivity, mm2/s 67
37
Thermal Shock Resistance, points 5.5 to 6.7
16

Alloy Composition

Aluminum (Al), % 94.1 to 97.6
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Chromium (Cr), % 0.050 to 0.25
0
Cobalt (Co), % 0 to 0.050
0
Copper (Cu), % 0 to 0.2
63 to 69.2
Iron (Fe), % 0.4 to 1.0
0 to 0.4
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0 to 0.2
0
Manganese (Mn), % 0.8 to 1.5
0 to 0.15
Nickel (Ni), % 0.15 to 0.7
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 1.0 to 1.7
0.8 to 1.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
30 to 36
Residuals, % 0 to 0.15
0