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EN 1.8818 Steel vs. 443.0 Aluminum

EN 1.8818 steel belongs to the iron alloys classification, while 443.0 aluminum belongs to the aluminum alloys. There are 31 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 1.8818 steel and the bottom bar is 443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
41
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 27
5.6
Fatigue Strength, MPa 200
55
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 280
96
Tensile Strength: Ultimate (UTS), MPa 440
150
Tensile Strength: Yield (Proof), MPa 270
65

Thermal Properties

Latent Heat of Fusion, J/g 250
470
Maximum Temperature: Mechanical, °C 400
180
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 48
150
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
38
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
130

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
8.0
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 49
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 200
30
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 16
16
Strength to Weight: Bending, points 16
23
Thermal Diffusivity, mm2/s 13
61
Thermal Shock Resistance, points 13
6.9

Alloy Composition


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Aluminum (Al), % 0.015 to 0.034
90.7 to 95.5
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 0 to 0.35
0 to 0.25
Copper (Cu), % 0 to 0.6
0 to 0.6
Iron (Fe), % 95.9 to 99.985
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.6
0 to 0.5
Molybdenum (Mo), % 0 to 0.13
0
Nickel (Ni), % 0 to 0.35
0
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
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.060
0 to 0.25
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.35