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EN 1.1151 Steel vs. 3104 Aluminum

EN 1.1151 steel belongs to the iron alloys classification, while 3104 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 EN 1.1151 steel and the bottom bar is 3104 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 21 to 26
1.1 to 20
Fatigue Strength, MPa 180 to 240
74 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 300 to 330
110 to 180
Tensile Strength: Ultimate (UTS), MPa 460 to 520
170 to 310
Tensile Strength: Yield (Proof), MPa 240 to 340
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 50
160
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
41
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
130

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 1.4
8.4
Embodied Energy, MJ/kg 19
150
Embodied Water, L/kg 47
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 100
1.6 to 60
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 310
34 to 540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 16 to 18
17 to 31
Strength to Weight: Bending, points 17 to 18
25 to 37
Thermal Diffusivity, mm2/s 13
64
Thermal Shock Resistance, points 15 to 16
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
95.1 to 98.4
Carbon (C), % 0.17 to 0.24
0
Chromium (Cr), % 0 to 0.4
0
Copper (Cu), % 0
0.050 to 0.25
Gallium (Ga), % 0
0 to 0.050
Iron (Fe), % 97.7 to 99.43
0 to 0.8
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0.4 to 0.7
0.8 to 1.4
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.035
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants