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4007 Aluminum vs. C37700 Brass

4007 aluminum belongs to the aluminum alloys classification, while C37700 brass belongs to the copper 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 4007 aluminum and the bottom bar is C37700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
100
Elongation at Break, % 5.1 to 23
40
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
39
Shear Strength, MPa 80 to 90
270
Tensile Strength: Ultimate (UTS), MPa 130 to 160
400
Tensile Strength: Yield (Proof), MPa 50 to 120
160

Thermal Properties

Latent Heat of Fusion, J/g 410
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 650
890
Melting Onset (Solidus), °C 590
880
Specific Heat Capacity, J/kg-K 890
380
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
27
Electrical Conductivity: Equal Weight (Specific), % IACS 140
30

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.8
8.1
Embodied Carbon, kg CO2/kg material 8.1
2.6
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1160
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
130
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
120
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 49
19
Strength to Weight: Axial, points 12 to 15
14
Strength to Weight: Bending, points 20 to 23
15
Thermal Diffusivity, mm2/s 67
39
Thermal Shock Resistance, points 5.5 to 6.7
13

Alloy Composition

Aluminum (Al), % 94.1 to 97.6
0
Chromium (Cr), % 0.050 to 0.25
0
Cobalt (Co), % 0 to 0.050
0
Copper (Cu), % 0 to 0.2
58 to 61
Iron (Fe), % 0.4 to 1.0
0 to 0.3
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 0 to 0.2
0
Manganese (Mn), % 0.8 to 1.5
0
Nickel (Ni), % 0.15 to 0.7
0
Silicon (Si), % 1.0 to 1.7
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
35.7 to 40.5
Residuals, % 0
0 to 0.5