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EN AC-42100 Aluminum vs. 242.0 Aluminum

Both EN AC-42100 aluminum and 242.0 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN AC-42100 aluminum and the bottom bar is 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
70 to 110
Elastic (Young's, Tensile) Modulus, GPa 70
73
Elongation at Break, % 3.4 to 9.0
0.5 to 1.5
Fatigue Strength, MPa 76 to 82
55 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 280 to 290
180 to 290
Tensile Strength: Yield (Proof), MPa 210 to 230
120 to 220

Thermal Properties

Latent Heat of Fusion, J/g 500
390
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 610
640
Melting Onset (Solidus), °C 600
530
Specific Heat Capacity, J/kg-K 910
870
Thermal Conductivity, W/m-K 150
130 to 170
Thermal Expansion, µm/m-K 22
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 140
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.6
3.1
Embodied Carbon, kg CO2/kg material 8.0
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
1.3 to 3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
110 to 340
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
45
Strength to Weight: Axial, points 30 to 31
16 to 26
Strength to Weight: Bending, points 37 to 38
23 to 32
Thermal Diffusivity, mm2/s 66
50 to 62
Thermal Shock Resistance, points 13
8.0 to 13

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
88.4 to 93.6
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0 to 0.050
3.5 to 4.5
Iron (Fe), % 0 to 0.19
0 to 1.0
Magnesium (Mg), % 0.25 to 0.45
1.2 to 1.8
Manganese (Mn), % 0 to 0.1
0 to 0.35
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 6.5 to 7.5
0 to 0.7
Titanium (Ti), % 0 to 0.25
0 to 0.25
Zinc (Zn), % 0 to 0.070
0 to 0.35
Residuals, % 0
0 to 0.15