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5026 Aluminum vs. S40977 Stainless Steel

5026 aluminum belongs to the aluminum alloys classification, while S40977 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 5026 aluminum and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 5.1 to 11
21
Fatigue Strength, MPa 94 to 140
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 150 to 180
320
Tensile Strength: Ultimate (UTS), MPa 260 to 320
510
Tensile Strength: Yield (Proof), MPa 120 to 250
310

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 210
720
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 510
1400
Specific Heat Capacity, J/kg-K 890
480
Thermal Conductivity, W/m-K 130
25
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 99
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
6.5
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.9
1.9
Embodied Energy, MJ/kg 150
27
Embodied Water, L/kg 1150
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 29
92
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 440
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 26 to 32
18
Strength to Weight: Bending, points 33 to 37
18
Thermal Diffusivity, mm2/s 52
6.7
Thermal Shock Resistance, points 11 to 14
18

Alloy Composition

Aluminum (Al), % 88.2 to 94.7
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.3
10.5 to 12.5
Copper (Cu), % 0.1 to 0.8
0
Iron (Fe), % 0.2 to 1.0
83.9 to 89.2
Magnesium (Mg), % 3.9 to 4.9
0
Manganese (Mn), % 0.6 to 1.8
0 to 1.5
Nickel (Ni), % 0
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.55 to 1.4
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 1.0
0
Zirconium (Zr), % 0 to 0.3
0
Residuals, % 0 to 0.15
0