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4147 Aluminum vs. C68400 Brass

4147 aluminum belongs to the aluminum alloys classification, while C68400 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 4147 aluminum and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 3.3
18
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
41
Shear Strength, MPa 63
330
Tensile Strength: Ultimate (UTS), MPa 110
540
Tensile Strength: Yield (Proof), MPa 59
310

Thermal Properties

Latent Heat of Fusion, J/g 570
210
Maximum Temperature: Mechanical, °C 160
130
Melting Completion (Liquidus), °C 580
840
Melting Onset (Solidus), °C 560
820
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 130
66
Thermal Expansion, µm/m-K 21
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
87
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.5
7.9
Embodied Carbon, kg CO2/kg material 7.7
2.7
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 1050
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
81
Resilience: Unit (Modulus of Resilience), kJ/m3 24
460
Stiffness to Weight: Axial, points 16
7.5
Stiffness to Weight: Bending, points 55
20
Strength to Weight: Axial, points 12
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 58
21
Thermal Shock Resistance, points 5.2
18

Alloy Composition

Aluminum (Al), % 85 to 88.9
0 to 0.5
Beryllium (Be), % 0 to 0.00030
0
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 0 to 0.25
59 to 64
Iron (Fe), % 0 to 0.8
0 to 1.0
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0 to 0.1
0.2 to 1.5
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 11 to 13
1.5 to 2.5
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0 to 0.2
28.6 to 39.3
Residuals, % 0
0 to 0.5