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EN AC-21100 Aluminum vs. C70700 Copper-nickel

EN AC-21100 aluminum belongs to the aluminum alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
73
Elastic (Young's, Tensile) Modulus, GPa 71
120
Elongation at Break, % 6.2 to 7.3
39
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
46
Tensile Strength: Ultimate (UTS), MPa 340 to 350
320
Tensile Strength: Yield (Proof), MPa 210 to 240
110

Thermal Properties

Latent Heat of Fusion, J/g 390
220
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 670
1120
Melting Onset (Solidus), °C 550
1060
Specific Heat Capacity, J/kg-K 880
390
Thermal Conductivity, W/m-K 130
59
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
11
Electrical Conductivity: Equal Weight (Specific), % IACS 100
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
34
Density, g/cm3 3.0
8.9
Embodied Carbon, kg CO2/kg material 8.0
3.4
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
100
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
51
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 31 to 33
10
Strength to Weight: Bending, points 36 to 37
12
Thermal Diffusivity, mm2/s 48
17
Thermal Shock Resistance, points 15
12

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
0
Copper (Cu), % 4.2 to 5.2
88.5 to 90.5
Iron (Fe), % 0 to 0.19
0 to 0.050
Manganese (Mn), % 0 to 0.55
0 to 0.5
Nickel (Ni), % 0
9.5 to 10.5
Silicon (Si), % 0 to 0.18
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0 to 0.5