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EN AC-21100 Aluminum vs. 4004 Aluminum

Both EN AC-21100 aluminum and 4004 aluminum are aluminum alloys. They have 88% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN AC-21100 aluminum and the bottom bar is 4004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 6.2 to 7.3
2.4
Fatigue Strength, MPa 79 to 87
42
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 340 to 350
110
Tensile Strength: Yield (Proof), MPa 210 to 240
60

Thermal Properties

Latent Heat of Fusion, J/g 390
540
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 670
600
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 880
910
Thermal Conductivity, W/m-K 130
130
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
33
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.0
2.6
Embodied Carbon, kg CO2/kg material 8.0
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
25
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
54
Strength to Weight: Axial, points 31 to 33
12
Strength to Weight: Bending, points 36 to 37
20
Thermal Diffusivity, mm2/s 48
58
Thermal Shock Resistance, points 15
5.1

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
86 to 90
Copper (Cu), % 4.2 to 5.2
0 to 0.25
Iron (Fe), % 0 to 0.19
0 to 0.8
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 0 to 0.55
0 to 0.1
Silicon (Si), % 0 to 0.18
9.0 to 10.5
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.2
Residuals, % 0
0 to 0.15