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EN AC-45100 Aluminum vs. C66700 Brass

EN AC-45100 aluminum belongs to the aluminum alloys classification, while C66700 brass belongs to the copper alloys. There are 28 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 C66700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 1.0 to 2.8
2.0 to 58
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 300 to 360
340 to 690
Tensile Strength: Yield (Proof), MPa 210 to 320
100 to 640

Thermal Properties

Latent Heat of Fusion, J/g 470
180
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 630
1090
Melting Onset (Solidus), °C 550
1050
Specific Heat Capacity, J/kg-K 890
390
Thermal Conductivity, W/m-K 140
97
Thermal Expansion, µm/m-K 22
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
17
Electrical Conductivity: Equal Weight (Specific), % IACS 95
19

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 7.9
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1100
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 7.6
13 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 710
49 to 1900
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 49
19
Strength to Weight: Axial, points 30 to 35
11 to 23
Strength to Weight: Bending, points 35 to 39
13 to 21
Thermal Diffusivity, mm2/s 54
30
Thermal Shock Resistance, points 14 to 16
11 to 23

Alloy Composition

Aluminum (Al), % 88 to 92.8
0
Copper (Cu), % 2.6 to 3.6
68.5 to 71.5
Iron (Fe), % 0 to 0.6
0 to 0.1
Lead (Pb), % 0 to 0.1
0 to 0.070
Magnesium (Mg), % 0.15 to 0.45
0
Manganese (Mn), % 0 to 0.55
0.8 to 1.5
Nickel (Ni), % 0 to 0.1
0
Silicon (Si), % 4.5 to 6.0
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.2
26.3 to 30.7
Residuals, % 0
0 to 0.5