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4147 Aluminum vs. C68800 Brass

4147 aluminum belongs to the aluminum alloys classification, while C68800 brass belongs to the copper alloys. There are 29 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 4147 aluminum and the bottom bar is C68800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 3.3
2.0 to 36
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Shear Strength, MPa 63
380 to 510
Tensile Strength: Ultimate (UTS), MPa 110
570 to 890
Tensile Strength: Yield (Proof), MPa 59
390 to 790

Thermal Properties

Latent Heat of Fusion, J/g 570
190
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 580
960
Melting Onset (Solidus), °C 560
950
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 130
40
Thermal Expansion, µm/m-K 21
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
18
Electrical Conductivity: Equal Weight (Specific), % IACS 120
20

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.5
8.2
Embodied Carbon, kg CO2/kg material 7.7
2.8
Embodied Energy, MJ/kg 140
48
Embodied Water, L/kg 1050
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
16 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 24
710 to 2860
Stiffness to Weight: Axial, points 16
7.3
Stiffness to Weight: Bending, points 55
19
Strength to Weight: Axial, points 12
19 to 30
Strength to Weight: Bending, points 20
19 to 25
Thermal Diffusivity, mm2/s 58
12
Thermal Shock Resistance, points 5.2
19 to 30

Alloy Composition

Aluminum (Al), % 85 to 88.9
3.0 to 3.8
Beryllium (Be), % 0 to 0.00030
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 0 to 0.25
70.8 to 75.5
Iron (Fe), % 0 to 0.8
0 to 0.2
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 11 to 13
0
Zinc (Zn), % 0 to 0.2
21.3 to 24.1
Residuals, % 0
0 to 0.5