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EN AC-44000 Aluminum vs. EN AC-44400 Aluminum

Both EN AC-44000 aluminum and EN AC-44400 aluminum are aluminum alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN AC-44000 aluminum and the bottom bar is EN AC-44400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 51
61
Elastic (Young's, Tensile) Modulus, GPa 71
71
Elongation at Break, % 7.3
4.1
Fatigue Strength, MPa 64
79
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 180
210
Tensile Strength: Yield (Proof), MPa 86
110

Thermal Properties

Latent Heat of Fusion, J/g 560
540
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 590
600
Melting Onset (Solidus), °C 590
590
Specific Heat Capacity, J/kg-K 910
900
Thermal Conductivity, W/m-K 140
140
Thermal Expansion, µm/m-K 21
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
33
Electrical Conductivity: Equal Weight (Specific), % IACS 130
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.5
2.6
Embodied Carbon, kg CO2/kg material 7.8
7.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1070
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
7.3
Resilience: Unit (Modulus of Resilience), kJ/m3 51
85
Stiffness to Weight: Axial, points 16
15
Stiffness to Weight: Bending, points 55
54
Strength to Weight: Axial, points 20
23
Strength to Weight: Bending, points 28
31
Thermal Diffusivity, mm2/s 61
60
Thermal Shock Resistance, points 8.4
9.8

Alloy Composition

Aluminum (Al), % 87.1 to 90
87.1 to 92
Copper (Cu), % 0 to 0.050
0 to 0.1
Iron (Fe), % 0 to 0.19
0 to 0.65
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 0 to 0.45
0 to 0.1
Manganese (Mn), % 0 to 0.1
0 to 0.5
Nickel (Ni), % 0
0 to 0.050
Silicon (Si), % 10 to 11.8
8.0 to 11
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0 to 0.15
0 to 0.15
Zinc (Zn), % 0 to 0.070
0 to 0.15
Residuals, % 0
0 to 0.15