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EN AC-42100 Aluminum vs. EN AC-46600 Aluminum

Both EN AC-42100 aluminum and EN AC-46600 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-42100 aluminum and the bottom bar is EN AC-46600 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
77
Elastic (Young's, Tensile) Modulus, GPa 70
72
Elongation at Break, % 3.4 to 9.0
1.1
Fatigue Strength, MPa 76 to 82
75
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 280 to 290
180
Tensile Strength: Yield (Proof), MPa 210 to 230
110

Thermal Properties

Latent Heat of Fusion, J/g 500
490
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 610
620
Melting Onset (Solidus), °C 600
560
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
29
Electrical Conductivity: Equal Weight (Specific), % IACS 140
94

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.6
2.8
Embodied Carbon, kg CO2/kg material 8.0
7.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
1.7
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
81
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
50
Strength to Weight: Axial, points 30 to 31
18
Strength to Weight: Bending, points 37 to 38
25
Thermal Diffusivity, mm2/s 66
51
Thermal Shock Resistance, points 13
8.1

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
85.6 to 92.4
Copper (Cu), % 0 to 0.050
1.5 to 2.5
Iron (Fe), % 0 to 0.19
0 to 0.8
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0.25 to 0.45
0 to 0.35
Manganese (Mn), % 0 to 0.1
0.15 to 0.65
Nickel (Ni), % 0
0 to 0.35
Silicon (Si), % 6.5 to 7.5
6.0 to 8.0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.25
0 to 0.25
Zinc (Zn), % 0 to 0.070
0 to 1.0
Residuals, % 0
0 to 0.15