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3105 Aluminum vs. C36200 Brass

3105 aluminum belongs to the aluminum alloys classification, while C36200 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 3105 aluminum and the bottom bar is C36200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 1.1 to 20
20 to 53
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
39
Shear Strength, MPa 77 to 140
210 to 240
Tensile Strength: Ultimate (UTS), MPa 120 to 240
340 to 420
Tensile Strength: Yield (Proof), MPa 46 to 220
130 to 360

Thermal Properties

Latent Heat of Fusion, J/g 400
170
Maximum Temperature: Mechanical, °C 180
120
Melting Completion (Liquidus), °C 660
900
Melting Onset (Solidus), °C 640
890
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 170
120
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
26
Electrical Conductivity: Equal Weight (Specific), % IACS 140
28

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 8.2
2.6
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
74 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
89 to 630
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 50
19
Strength to Weight: Axial, points 12 to 24
11 to 14
Strength to Weight: Bending, points 20 to 31
13 to 15
Thermal Diffusivity, mm2/s 68
37
Thermal Shock Resistance, points 5.2 to 11
11 to 14

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
60 to 63
Iron (Fe), % 0 to 0.7
0 to 0.15
Lead (Pb), % 0
3.5 to 4.5
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Silicon (Si), % 0 to 0.6
0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
32.4 to 36.5
Residuals, % 0 to 0.15
0