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EN 1.8824 Steel vs. 1085 Aluminum

EN 1.8824 steel belongs to the iron alloys classification, while 1085 aluminum belongs to the aluminum 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 EN 1.8824 steel and the bottom bar is 1085 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 22
4.5 to 39
Fatigue Strength, MPa 310
22 to 49
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 370
48 to 79
Tensile Strength: Ultimate (UTS), MPa 580
73 to 140
Tensile Strength: Yield (Proof), MPa 440
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 250
400
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 49
230
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
61
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
200

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.6
8.3
Embodied Energy, MJ/kg 21
160
Embodied Water, L/kg 48
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
4.8 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 530
2.1 to 110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 21
7.5 to 14
Strength to Weight: Bending, points 20
14 to 22
Thermal Diffusivity, mm2/s 13
94
Thermal Shock Resistance, points 17
3.3 to 6.1

Alloy Composition


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Aluminum (Al), % 0.020 to 0.040
99.85 to 100
Carbon (C), % 0 to 0.16
0
Copper (Cu), % 0
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 96.6 to 99.98
0 to 0.12
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.7
0 to 0.020
Molybdenum (Mo), % 0 to 0.2
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.050
0 to 0.020
Vanadium (V), % 0 to 0.1
0 to 0.050
Zinc (Zn), % 0
0 to 0.030
Residuals, % 0
0 to 0.010