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C355.0 Aluminum vs. C69700 Brass

C355.0 aluminum belongs to the aluminum alloys classification, while C69700 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 C69700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 2.7 to 3.8
25
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 290 to 310
470
Tensile Strength: Yield (Proof), MPa 200 to 230
230

Thermal Properties

Latent Heat of Fusion, J/g 470
240
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 620
930
Melting Onset (Solidus), °C 570
880
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 150
43
Thermal Expansion, µm/m-K 22
19

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1120
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.5 to 9.8
99
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 380
250
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 51
19
Strength to Weight: Axial, points 30 to 32
16
Strength to Weight: Bending, points 36 to 37
16
Thermal Diffusivity, mm2/s 60
13
Thermal Shock Resistance, points 13 to 14
16

Alloy Composition

Aluminum (Al), % 91.7 to 94.1
0
Copper (Cu), % 1.0 to 1.5
75 to 80
Iron (Fe), % 0 to 0.2
0 to 0.2
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
0 to 0.4
Silicon (Si), % 4.5 to 5.5
2.5 to 3.5
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
13.9 to 22
Residuals, % 0
0 to 0.5