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5182 Aluminum vs. S40910 Stainless Steel

5182 aluminum belongs to the aluminum alloys classification, while S40910 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 5182 aluminum and the bottom bar is S40910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 12
23
Fatigue Strength, MPa 100 to 130
130
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
75
Shear Strength, MPa 170 to 240
270
Tensile Strength: Ultimate (UTS), MPa 280 to 420
430
Tensile Strength: Yield (Proof), MPa 130 to 360
190

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 180
710
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 590
1410
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
26
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 94
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
7.0
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.9
2.0
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1180
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
80
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 29 to 44
16
Strength to Weight: Bending, points 36 to 47
16
Thermal Diffusivity, mm2/s 53
6.9
Thermal Shock Resistance, points 12 to 19
16

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
10.5 to 11.7
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.35
85 to 89.5
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.17
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0 to 0.5
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0