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C355.0 Aluminum vs. C68300 Brass

C355.0 aluminum belongs to the aluminum alloys classification, while C68300 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 C355.0 aluminum and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 2.7 to 3.8
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 290 to 310
430
Tensile Strength: Yield (Proof), MPa 200 to 230
260

Thermal Properties

Latent Heat of Fusion, J/g 470
180
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 620
900
Melting Onset (Solidus), °C 570
890
Specific Heat Capacity, J/kg-K 900
390
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 22
20

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.7
8.0
Embodied Carbon, kg CO2/kg material 8.0
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1120
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.5 to 9.8
56
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 380
330
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 51
20
Strength to Weight: Axial, points 30 to 32
15
Strength to Weight: Bending, points 36 to 37
16
Thermal Diffusivity, mm2/s 60
38
Thermal Shock Resistance, points 13 to 14
14

Alloy Composition

Aluminum (Al), % 91.7 to 94.1
0
Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 1.0 to 1.5
59 to 63
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 4.5 to 5.5
0.3 to 1.0
Tin (Sn), % 0
0.050 to 0.2
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
34.2 to 40.4
Residuals, % 0
0 to 0.5