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SAE-AISI 1040 Steel vs. 520.0 Aluminum

SAE-AISI 1040 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 (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 SAE-AISI 1040 steel and the bottom bar is 520.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 180
75
Elastic (Young's, Tensile) Modulus, GPa 190
66
Elongation at Break, % 13 to 20
14
Fatigue Strength, MPa 220 to 340
55
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
25
Shear Strength, MPa 350 to 390
230
Tensile Strength: Ultimate (UTS), MPa 570 to 640
330
Tensile Strength: Yield (Proof), MPa 320 to 530
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 51
87
Thermal Expansion, µm/m-K 12
25

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
21
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
72

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.4
9.8
Embodied Energy, MJ/kg 18
160
Embodied Water, L/kg 46
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 96
39
Resilience: Unit (Modulus of Resilience), kJ/m3 270 to 760
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
52
Strength to Weight: Axial, points 20 to 23
35
Strength to Weight: Bending, points 19 to 21
41
Thermal Diffusivity, mm2/s 14
37
Thermal Shock Resistance, points 18 to 20
14

Alloy Composition

Aluminum (Al), % 0
87.9 to 90.5
Carbon (C), % 0.37 to 0.44
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 98.6 to 99.03
0 to 0.3
Magnesium (Mg), % 0
9.5 to 10.6
Manganese (Mn), % 0.6 to 0.9
0 to 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.25
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15