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SAE-AISI 1118 Steel vs. 520.0 Aluminum

SAE-AISI 1118 steel belongs to the iron alloys classification, while 520.0 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 SAE-AISI 1118 steel and the bottom bar is 520.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
75
Elastic (Young's, Tensile) Modulus, GPa 190
66
Elongation at Break, % 13
14
Fatigue Strength, MPa 260
55
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
25
Shear Strength, MPa 300
230
Tensile Strength: Ultimate (UTS), MPa 490
330
Tensile Strength: Yield (Proof), MPa 410
170

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
480
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 52
87
Thermal Expansion, µm/m-K 12
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
21
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
72

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.4
9.8
Embodied Energy, MJ/kg 19
160
Embodied Water, L/kg 47
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 61
39
Resilience: Unit (Modulus of Resilience), kJ/m3 450
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 17
35
Strength to Weight: Bending, points 18
41
Thermal Diffusivity, mm2/s 14
37
Thermal Shock Resistance, points 15
14

Alloy Composition

Aluminum (Al), % 0
87.9 to 90.5
Carbon (C), % 0.14 to 0.2
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98 to 98.5
0 to 0.3
Magnesium (Mg), % 0
9.5 to 10.6
Manganese (Mn), % 1.3 to 1.6
0 to 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.25
Sulfur (S), % 0.080 to 0.13
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15