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EN AC-51500 Aluminum vs. C68700 Brass

EN AC-51500 aluminum belongs to the aluminum alloys classification, while C68700 brass belongs to the copper alloys. There are 26 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 EN AC-51500 aluminum and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 280
390
Tensile Strength: Yield (Proof), MPa 160
140

Thermal Properties

Latent Heat of Fusion, J/g 430
190
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 630
970
Melting Onset (Solidus), °C 590
930
Specific Heat Capacity, J/kg-K 910
400
Thermal Conductivity, W/m-K 120
100
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
23
Electrical Conductivity: Equal Weight (Specific), % IACS 88
25

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.6
8.3
Embodied Carbon, kg CO2/kg material 9.0
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1150
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 190
90
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 52
19
Strength to Weight: Axial, points 29
13
Strength to Weight: Bending, points 36
14
Thermal Diffusivity, mm2/s 49
30
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 0 to 0.050
76 to 79
Iron (Fe), % 0 to 0.25
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 4.7 to 6.0
0
Manganese (Mn), % 0.4 to 0.8
0
Silicon (Si), % 1.8 to 2.6
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
17.8 to 22.2
Residuals, % 0
0 to 0.5