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C34500 Brass vs. 390.0 Aluminum

C34500 brass belongs to the copper alloys classification, while 390.0 aluminum belongs to the aluminum alloys. There are 28 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 C34500 brass and the bottom bar is 390.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
75
Elongation at Break, % 12 to 28
1.0
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 40
28
Tensile Strength: Ultimate (UTS), MPa 340 to 430
280 to 300
Tensile Strength: Yield (Proof), MPa 120 to 180
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 170
640
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 910
650
Melting Onset (Solidus), °C 890
560
Specific Heat Capacity, J/kg-K 380
880
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 21
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
24 to 25
Electrical Conductivity: Equal Weight (Specific), % IACS 29
79 to 83

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.2
2.7
Embodied Carbon, kg CO2/kg material 2.6
7.3
Embodied Energy, MJ/kg 45
130
Embodied Water, L/kg 320
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 75
2.7 to 2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 69 to 160
380 to 470
Stiffness to Weight: Axial, points 7.1
15
Stiffness to Weight: Bending, points 19
52
Strength to Weight: Axial, points 12 to 15
28 to 30
Strength to Weight: Bending, points 13 to 16
35 to 36
Thermal Diffusivity, mm2/s 37
56
Thermal Shock Resistance, points 11 to 14
14 to 15

Alloy Composition

Aluminum (Al), % 0
74.5 to 79.6
Copper (Cu), % 62 to 65
4.0 to 5.0
Iron (Fe), % 0 to 0.15
0 to 1.3
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
0.45 to 0.65
Manganese (Mn), % 0
0 to 0.1
Silicon (Si), % 0
16 to 18
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 32 to 36.5
0 to 0.1
Residuals, % 0
0 to 0.2