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EN AC-21100 Aluminum vs. C26000 Brass

EN AC-21100 aluminum belongs to the aluminum alloys classification, while C26000 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-21100 aluminum and the bottom bar is C26000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 6.2 to 7.3
2.5 to 66
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 340 to 350
320 to 680
Tensile Strength: Yield (Proof), MPa 210 to 240
110 to 570

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 170
140
Melting Completion (Liquidus), °C 670
950
Melting Onset (Solidus), °C 550
920
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
28
Electrical Conductivity: Equal Weight (Specific), % IACS 100
31

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 3.0
8.2
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
6.1 to 420
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
51 to 1490
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 31 to 33
11 to 23
Strength to Weight: Bending, points 36 to 37
13 to 21
Thermal Diffusivity, mm2/s 48
38
Thermal Shock Resistance, points 15
11 to 23

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
0
Bismuth (Bi), % 0
0 to 0.0059
Copper (Cu), % 4.2 to 5.2
68.5 to 71.5
Iron (Fe), % 0 to 0.19
0 to 0.050
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0 to 0.55
0
Silicon (Si), % 0 to 0.18
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
28.1 to 31.5
Residuals, % 0 to 0.1
0 to 0.3