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EN AC-44400 Aluminum vs. C68700 Brass

EN AC-44400 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-44400 aluminum and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 210
390
Tensile Strength: Yield (Proof), MPa 110
140

Thermal Properties

Latent Heat of Fusion, J/g 540
190
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 600
970
Melting Onset (Solidus), °C 590
930
Specific Heat Capacity, J/kg-K 900
400
Thermal Conductivity, W/m-K 140
100
Thermal Expansion, µm/m-K 22
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
23
Electrical Conductivity: Equal Weight (Specific), % IACS 110
25

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
26
Density, g/cm3 2.6
8.3
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1080
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 85
90
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 54
19
Strength to Weight: Axial, points 23
13
Strength to Weight: Bending, points 31
14
Thermal Diffusivity, mm2/s 60
30
Thermal Shock Resistance, points 9.8
13

Alloy Composition

Aluminum (Al), % 87.1 to 92
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Copper (Cu), % 0 to 0.1
76 to 79
Iron (Fe), % 0 to 0.65
0 to 0.060
Lead (Pb), % 0 to 0.050
0 to 0.070
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.050
0
Silicon (Si), % 8.0 to 11
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.15
17.8 to 22.2
Residuals, % 0
0 to 0.5