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EN AC-21100 Aluminum vs. EN AC-21000 Aluminum

Both EN AC-21100 aluminum and EN AC-21000 aluminum are aluminum alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN AC-21100 aluminum and the bottom bar is EN AC-21000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
100
Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 6.2 to 7.3
6.7
Fatigue Strength, MPa 79 to 87
100
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 340 to 350
340
Tensile Strength: Yield (Proof), MPa 210 to 240
240

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
21
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
390
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
46
Strength to Weight: Axial, points 31 to 33
32
Strength to Weight: Bending, points 36 to 37
36
Thermal Diffusivity, mm2/s 48
49
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
93.4 to 95.5
Copper (Cu), % 4.2 to 5.2
4.2 to 5.0
Iron (Fe), % 0 to 0.19
0 to 0.35
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 0.55
0 to 0.1
Nickel (Ni), % 0
0 to 0.050
Silicon (Si), % 0 to 0.18
0 to 0.2
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0.15 to 0.3
0.15 to 0.3
Zinc (Zn), % 0 to 0.070
0 to 0.1
Residuals, % 0
0 to 0.1