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EN AC-71100 Aluminum vs. C68100 Brass

EN AC-71100 aluminum belongs to the aluminum alloys classification, while C68100 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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-71100 aluminum and the bottom bar is C68100 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
100
Elongation at Break, % 1.1
29
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 260
380
Tensile Strength: Yield (Proof), MPa 230
140

Thermal Properties

Latent Heat of Fusion, J/g 490
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 580
890
Melting Onset (Solidus), °C 520
870
Specific Heat Capacity, J/kg-K 860
390
Thermal Expansion, µm/m-K 22
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
24
Electrical Conductivity: Equal Weight (Specific), % IACS 97
27

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.4
2.8
Embodied Energy, MJ/kg 140
47
Embodied Water, L/kg 1010
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
86
Resilience: Unit (Modulus of Resilience), kJ/m3 360
94
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 25
13
Strength to Weight: Bending, points 31
15
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0 to 0.010
Copper (Cu), % 0 to 0.1
56 to 60
Iron (Fe), % 0 to 0.3
0.25 to 1.3
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0.010 to 0.5
Silicon (Si), % 7.5 to 9.5
0.040 to 0.15
Tin (Sn), % 0
0.75 to 1.1
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
36.4 to 43
Residuals, % 0
0 to 0.5