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6018 Aluminum vs. C42200 Brass

6018 aluminum belongs to the aluminum alloys classification, while C42200 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 6018 aluminum and the bottom bar is C42200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 9.0 to 9.1
2.0 to 46
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 170 to 180
210 to 350
Tensile Strength: Ultimate (UTS), MPa 290 to 300
300 to 610
Tensile Strength: Yield (Proof), MPa 220 to 230
100 to 570

Thermal Properties

Latent Heat of Fusion, J/g 400
200
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
1040
Melting Onset (Solidus), °C 570
1020
Specific Heat Capacity, J/kg-K 890
380
Thermal Conductivity, W/m-K 170
130
Thermal Expansion, µm/m-K 23
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
31
Electrical Conductivity: Equal Weight (Specific), % IACS 140
32

Otherwise Unclassified Properties

Base Metal Price, % relative 10
29
Density, g/cm3 2.9
8.6
Embodied Carbon, kg CO2/kg material 8.2
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 25
12 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
49 to 1460
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 48
19
Strength to Weight: Axial, points 28 to 29
9.5 to 19
Strength to Weight: Bending, points 34 to 35
11 to 18
Thermal Diffusivity, mm2/s 65
39
Thermal Shock Resistance, points 13
10 to 21

Alloy Composition

Aluminum (Al), % 93.1 to 97.8
0
Bismuth (Bi), % 0.4 to 0.7
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.15 to 0.4
86 to 89
Iron (Fe), % 0 to 0.7
0 to 0.050
Lead (Pb), % 0.4 to 1.2
0 to 0.050
Magnesium (Mg), % 0.6 to 1.2
0
Manganese (Mn), % 0.3 to 0.8
0
Phosphorus (P), % 0
0 to 0.35
Silicon (Si), % 0.5 to 1.2
0
Tin (Sn), % 0
0.8 to 1.4
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.3
8.7 to 13.2
Residuals, % 0
0 to 0.5