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5182 Aluminum vs. EN 1.7378 Steel

5182 aluminum belongs to the aluminum alloys classification, while EN 1.7378 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 5182 aluminum and the bottom bar is EN 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 12
17
Fatigue Strength, MPa 100 to 130
330
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
74
Shear Strength, MPa 170 to 240
430
Tensile Strength: Ultimate (UTS), MPa 280 to 420
700
Tensile Strength: Yield (Proof), MPa 130 to 360
490

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 180
460
Melting Completion (Liquidus), °C 640
1470
Melting Onset (Solidus), °C 590
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
39
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 94
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.0
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.9
2.3
Embodied Energy, MJ/kg 150
33
Embodied Water, L/kg 1180
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
110
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 29 to 44
25
Strength to Weight: Bending, points 36 to 47
22
Thermal Diffusivity, mm2/s 53
10
Thermal Shock Resistance, points 12 to 19
20

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0
0.050 to 0.1
Chromium (Cr), % 0 to 0.1
2.2 to 2.6
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.35
94.6 to 96.1
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
0.3 to 0.7
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0.15 to 0.45
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.1
0.050 to 0.1
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0