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EN 1.8818 Steel vs. 518.0 Aluminum

EN 1.8818 steel belongs to the iron alloys classification, while 518.0 aluminum belongs to the aluminum alloys. There are 31 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 1.8818 steel and the bottom bar is 518.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
80
Elastic (Young's, Tensile) Modulus, GPa 190
67
Elongation at Break, % 27
5.0
Fatigue Strength, MPa 200
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
25
Shear Strength, MPa 280
200
Tensile Strength: Ultimate (UTS), MPa 440
310
Tensile Strength: Yield (Proof), MPa 270
190

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
620
Melting Onset (Solidus), °C 1420
560
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 48
98
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
24
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
81

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.6
9.4
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 49
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
14
Resilience: Unit (Modulus of Resilience), kJ/m3 200
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
51
Strength to Weight: Axial, points 16
32
Strength to Weight: Bending, points 16
38
Thermal Diffusivity, mm2/s 13
40
Thermal Shock Resistance, points 13
14

Alloy Composition


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Aluminum (Al), % 0.015 to 0.034
88.1 to 92.5
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 0 to 0.35
0
Copper (Cu), % 0 to 0.6
0 to 0.25
Iron (Fe), % 95.9 to 99.985
0 to 1.8
Magnesium (Mg), % 0
7.5 to 8.5
Manganese (Mn), % 0 to 1.6
0 to 0.35
Molybdenum (Mo), % 0 to 0.13
0
Nickel (Ni), % 0 to 0.35
0 to 0.15
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.017
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.55
0 to 0.35
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.25