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6012 Aluminum vs. EN 1.8831 Steel

6012 aluminum belongs to the aluminum alloys classification, while EN 1.8831 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6012 aluminum and the bottom bar is EN 1.8831 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 9.1 to 11
19
Fatigue Strength, MPa 55 to 100
330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 130 to 190
390
Tensile Strength: Ultimate (UTS), MPa 220 to 320
630
Tensile Strength: Yield (Proof), MPa 110 to 260
480

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 160
49
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.3
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.6
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1170
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 28
110
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 480
620
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 22 to 32
22
Strength to Weight: Bending, points 29 to 37
21
Thermal Diffusivity, mm2/s 62
13
Thermal Shock Resistance, points 10 to 14
18

Alloy Composition

Aluminum (Al), % 92.2 to 98
0.020 to 0.040
Bismuth (Bi), % 0 to 0.7
0
Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
96.6 to 99.98
Lead (Pb), % 0.4 to 2.0
0
Magnesium (Mg), % 0.6 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.6 to 1.4
0 to 0.6
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0 to 0.2
0 to 0.050
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0