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EN AC-42100 Aluminum vs. EN AC-46400 Aluminum

Both EN AC-42100 aluminum and EN AC-46400 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is EN AC-42100 aluminum and the bottom bar is EN AC-46400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
77 to 120
Elastic (Young's, Tensile) Modulus, GPa 70
72
Elongation at Break, % 3.4 to 9.0
1.1 to 1.7
Fatigue Strength, MPa 76 to 82
75 to 85
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 280 to 290
170 to 310
Tensile Strength: Yield (Proof), MPa 210 to 230
110 to 270

Thermal Properties

Latent Heat of Fusion, J/g 500
520
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 610
610
Melting Onset (Solidus), °C 600
570
Specific Heat Capacity, J/kg-K 910
890
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 22
22

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.6
2.7
Embodied Carbon, kg CO2/kg material 8.0
7.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
1.7 to 4.9
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
82 to 500
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 53
52
Strength to Weight: Axial, points 30 to 31
18 to 32
Strength to Weight: Bending, points 37 to 38
26 to 38
Thermal Diffusivity, mm2/s 66
55
Thermal Shock Resistance, points 13
7.8 to 14

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
85.4 to 90.5
Copper (Cu), % 0 to 0.050
0.8 to 1.3
Iron (Fe), % 0 to 0.19
0 to 0.8
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0.25 to 0.45
0.25 to 0.65
Manganese (Mn), % 0 to 0.1
0.15 to 0.55
Nickel (Ni), % 0
0 to 0.2
Silicon (Si), % 6.5 to 7.5
8.3 to 9.7
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 0 to 0.070
0 to 0.8
Residuals, % 0
0 to 0.25

Comparable Variants