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EN AC-21100 Aluminum vs. 204.0 Aluminum

Both EN AC-21100 aluminum and 204.0 aluminum are aluminum alloys. Their average alloy composition is basically identical. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN AC-21100 aluminum and the bottom bar is 204.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
90 to 120
Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 6.2 to 7.3
5.7 to 7.8
Fatigue Strength, MPa 79 to 87
63 to 77
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 340 to 350
230 to 340
Tensile Strength: Yield (Proof), MPa 210 to 240
180 to 220

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 670
650
Melting Onset (Solidus), °C 550
580
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 130
120
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
29 to 34
Electrical Conductivity: Equal Weight (Specific), % IACS 100
87 to 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
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
220 to 350
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
46
Strength to Weight: Axial, points 31 to 33
21 to 31
Strength to Weight: Bending, points 36 to 37
28 to 36
Thermal Diffusivity, mm2/s 48
46
Thermal Shock Resistance, points 15
12 to 18

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
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 0.15

Comparable Variants