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EN AC-21100 Aluminum vs. 3203 Aluminum

Both EN AC-21100 aluminum and 3203 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN AC-21100 aluminum and the bottom bar is 3203 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 6.2 to 7.3
4.5 to 29
Fatigue Strength, MPa 79 to 87
46 to 92
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Tensile Strength: Ultimate (UTS), MPa 340 to 350
110 to 200
Tensile Strength: Yield (Proof), MPa 210 to 240
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 670
650
Melting Onset (Solidus), °C 550
620
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 130
170
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
43
Electrical Conductivity: Equal Weight (Specific), % IACS 100
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.0
Density, g/cm3 3.0
2.8
Embodied Carbon, kg CO2/kg material 8.0
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
8.0 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
11 to 250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
50
Strength to Weight: Axial, points 31 to 33
11 to 20
Strength to Weight: Bending, points 36 to 37
19 to 28
Thermal Diffusivity, mm2/s 48
70
Thermal Shock Resistance, points 15
4.9 to 8.8

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
96.9 to 99
Copper (Cu), % 4.2 to 5.2
0 to 0.050
Iron (Fe), % 0 to 0.19
0 to 0.7
Manganese (Mn), % 0 to 0.55
1.0 to 1.5
Silicon (Si), % 0 to 0.18
0 to 0.6
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.1
Residuals, % 0 to 0.1
0 to 0.15