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EN AC-21100 Aluminum vs. C44500 Brass

EN AC-21100 aluminum belongs to the aluminum alloys classification, while C44500 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-21100 aluminum and the bottom bar is C44500 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 340 to 350
350
Tensile Strength: Yield (Proof), MPa 210 to 240
120

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 670
940
Melting Onset (Solidus), °C 550
900
Specific Heat Capacity, J/kg-K 880
380
Thermal Conductivity, W/m-K 130
110
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
25
Electrical Conductivity: Equal Weight (Specific), % IACS 100
27

Otherwise Unclassified Properties

Base Metal Price, % relative 11
26
Density, g/cm3 3.0
8.3
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1150
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
65
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 31 to 33
12
Strength to Weight: Bending, points 36 to 37
13
Thermal Diffusivity, mm2/s 48
35
Thermal Shock Resistance, points 15
12

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
0
Copper (Cu), % 4.2 to 5.2
70 to 73
Iron (Fe), % 0 to 0.19
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 0.55
0
Phosphorus (P), % 0
0.020 to 0.1
Silicon (Si), % 0 to 0.18
0
Tin (Sn), % 0
0.9 to 1.2
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
25.2 to 29.1
Residuals, % 0 to 0.1
0 to 0.4