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6162 Aluminum vs. S43940 Stainless Steel

6162 aluminum belongs to the aluminum alloys classification, while S43940 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 6162 aluminum and the bottom bar is S43940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 6.7 to 9.1
21
Fatigue Strength, MPa 100 to 130
180
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 170 to 180
310
Tensile Strength: Ultimate (UTS), MPa 290 to 300
490
Tensile Strength: Yield (Proof), MPa 260 to 270
280

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 160
890
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 620
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
25
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 170
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
38
Embodied Water, L/kg 1180
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 26
86
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 550
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 29 to 30
18
Strength to Weight: Bending, points 36
18
Thermal Diffusivity, mm2/s 79
6.8
Thermal Shock Resistance, points 13
18

Alloy Composition

Aluminum (Al), % 96.7 to 98.9
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
17.5 to 18.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.5
78.2 to 82.1
Magnesium (Mg), % 0.7 to 1.1
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Niobium (Nb), % 0
0.3 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.4 to 0.8
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0.1 to 0.6
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0