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EN AC-44400 Aluminum vs. EN AC-42100 Aluminum

Both EN AC-44400 aluminum and EN AC-42100 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is EN AC-44400 aluminum and the bottom bar is EN AC-42100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 61
91
Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 4.1
3.4 to 9.0
Fatigue Strength, MPa 79
76 to 82
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Tensile Strength: Ultimate (UTS), MPa 210
280 to 290
Tensile Strength: Yield (Proof), MPa 110
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 540
500
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 600
610
Melting Onset (Solidus), °C 590
600
Specific Heat Capacity, J/kg-K 900
910
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 22
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
41
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.6
2.6
Embodied Carbon, kg CO2/kg material 7.8
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1080
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.3
9.1 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 85
300 to 370
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 54
53
Strength to Weight: Axial, points 23
30 to 31
Strength to Weight: Bending, points 31
37 to 38
Thermal Diffusivity, mm2/s 60
66
Thermal Shock Resistance, points 9.8
13

Alloy Composition

Aluminum (Al), % 87.1 to 92
91.3 to 93.3
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.65
0 to 0.19
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0 to 0.1
0.25 to 0.45
Manganese (Mn), % 0 to 0.5
0 to 0.1
Nickel (Ni), % 0 to 0.050
0
Silicon (Si), % 8.0 to 11
6.5 to 7.5
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.15
0 to 0.25
Zinc (Zn), % 0 to 0.15
0 to 0.070
Residuals, % 0
0 to 0.1