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EN AC-21100 Aluminum vs. 444.0 Aluminum

Both EN AC-21100 aluminum and 444.0 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is EN AC-21100 aluminum and the bottom bar is 444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
50
Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 6.2 to 7.3
25
Fatigue Strength, MPa 79 to 87
51
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 340 to 350
190
Tensile Strength: Yield (Proof), MPa 210 to 240
83

Thermal Properties

Latent Heat of Fusion, J/g 390
500
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 670
610
Melting Onset (Solidus), °C 550
600
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 130
160
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
40
Electrical Conductivity: Equal Weight (Specific), % IACS 100
140

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
7.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
39
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
49
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
53
Strength to Weight: Axial, points 31 to 33
20
Strength to Weight: Bending, points 36 to 37
28
Thermal Diffusivity, mm2/s 48
67
Thermal Shock Resistance, points 15
8.8

Alloy Composition

Aluminum (Al), % 93.4 to 95.7
90.5 to 93.5
Copper (Cu), % 4.2 to 5.2
0 to 0.25
Iron (Fe), % 0 to 0.19
0 to 0.6
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 0.55
0 to 0.35
Silicon (Si), % 0 to 0.18
6.5 to 7.5
Titanium (Ti), % 0.15 to 0.3
0 to 0.25
Zinc (Zn), % 0 to 0.070
0 to 0.35
Residuals, % 0
0 to 0.15