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SAE-AISI 5140 Steel vs. A413.0 Aluminum

SAE-AISI 5140 steel belongs to the iron alloys classification, while A413.0 aluminum belongs to the aluminum alloys. 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 5140 steel and the bottom bar is A413.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
80
Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 12 to 29
3.5
Fatigue Strength, MPa 220 to 570
130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 360 to 600
170
Tensile Strength: Ultimate (UTS), MPa 560 to 970
240
Tensile Strength: Yield (Proof), MPa 290 to 840
130

Thermal Properties

Latent Heat of Fusion, J/g 250
570
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 45
120
Thermal Expansion, µm/m-K 13
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
31
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 1.4
7.6
Embodied Energy, MJ/kg 19
140
Embodied Water, L/kg 49
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
7.1
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
120
Stiffness to Weight: Axial, points 13
16
Stiffness to Weight: Bending, points 24
54
Strength to Weight: Axial, points 20 to 34
25
Strength to Weight: Bending, points 19 to 28
33
Thermal Diffusivity, mm2/s 12
52
Thermal Shock Resistance, points 16 to 29
11

Alloy Composition

Aluminum (Al), % 0
82.9 to 89
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 97.3 to 98.1
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.7 to 0.9
0 to 0.35
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
11 to 13
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.25