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3102 Aluminum vs. EN 1.8891 Steel

3102 aluminum belongs to the aluminum alloys classification, while EN 1.8891 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 3102 aluminum and the bottom bar is EN 1.8891 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 23 to 28
19
Fatigue Strength, MPa 31 to 34
330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 58 to 65
380
Tensile Strength: Ultimate (UTS), MPa 92 to 100
610
Tensile Strength: Yield (Proof), MPa 28 to 34
480

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 180
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
46
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 190
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.7
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1190
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 22
110
Resilience: Unit (Modulus of Resilience), kJ/m3 5.8 to 8.3
630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 9.4 to 10
22
Strength to Weight: Bending, points 17 to 18
20
Thermal Diffusivity, mm2/s 92
12
Thermal Shock Resistance, points 4.1 to 4.4
18

Alloy Composition

Aluminum (Al), % 97.9 to 99.95
0.020 to 0.060
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.1
0 to 0.7
Iron (Fe), % 0 to 0.7
95.2 to 99
Manganese (Mn), % 0.050 to 0.4
1.0 to 1.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.8
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.025
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0 to 0.030
Vanadium (V), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0