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EN AC-45100 Aluminum vs. C68000 Brass

EN AC-45100 aluminum belongs to the aluminum alloys classification, while C68000 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-45100 aluminum and the bottom bar is C68000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
100
Elongation at Break, % 1.0 to 2.8
27
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 300 to 360
390
Tensile Strength: Yield (Proof), MPa 210 to 320
140

Thermal Properties

Latent Heat of Fusion, J/g 470
170
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 630
880
Melting Onset (Solidus), °C 550
870
Specific Heat Capacity, J/kg-K 890
390
Thermal Conductivity, W/m-K 140
96
Thermal Expansion, µm/m-K 22
21

Otherwise Unclassified Properties

Base Metal Price, % relative 10
23
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 7.9
2.8
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1100
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 7.6
82
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 710
95
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 49
20
Strength to Weight: Axial, points 30 to 35
14
Strength to Weight: Bending, points 35 to 39
15
Thermal Diffusivity, mm2/s 54
31
Thermal Shock Resistance, points 14 to 16
13

Alloy Composition

Aluminum (Al), % 88 to 92.8
0 to 0.010
Copper (Cu), % 2.6 to 3.6
56 to 60
Iron (Fe), % 0 to 0.6
0.25 to 1.3
Lead (Pb), % 0 to 0.1
0 to 0.050
Magnesium (Mg), % 0.15 to 0.45
0
Manganese (Mn), % 0 to 0.55
0.010 to 0.5
Nickel (Ni), % 0 to 0.1
0.2 to 0.8
Silicon (Si), % 4.5 to 6.0
0.040 to 0.15
Tin (Sn), % 0 to 0.050
0.75 to 1.1
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.2
35.6 to 42.8
Residuals, % 0
0 to 0.5