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EN AC-21100 Aluminum vs. CC764S Brass

EN AC-21100 aluminum belongs to the aluminum alloys classification, while CC764S brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 CC764S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
160
Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 6.2 to 7.3
15
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 340 to 350
680
Tensile Strength: Yield (Proof), MPa 210 to 240
290

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 670
850
Melting Onset (Solidus), °C 550
810
Specific Heat Capacity, J/kg-K 880
400
Thermal Conductivity, W/m-K 130
94
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
32
Electrical Conductivity: Equal Weight (Specific), % IACS 100
36

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.0
2.9
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 1150
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
80
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
390
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 46
20
Strength to Weight: Axial, points 31 to 33
24
Strength to Weight: Bending, points 36 to 37
22
Thermal Diffusivity, mm2/s 48
30
Thermal Shock Resistance, points 15
22

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
1.0 to 3.0
Antimony (Sb), % 0
0 to 0.050
Copper (Cu), % 4.2 to 5.2
52 to 66
Iron (Fe), % 0 to 0.19
0.5 to 2.5
Lead (Pb), % 0
0 to 0.3
Manganese (Mn), % 0 to 0.55
0.3 to 4.0
Nickel (Ni), % 0
0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.18
0 to 0.1
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
20.7 to 50.2
Residuals, % 0 to 0.1
0