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3005 Aluminum vs. S39277 Stainless Steel

3005 aluminum belongs to the aluminum alloys classification, while S39277 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 3005 aluminum and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 33 to 73
250
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 1.1 to 16
28
Fatigue Strength, MPa 53 to 100
480
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Shear Strength, MPa 84 to 150
600
Tensile Strength: Ultimate (UTS), MPa 140 to 270
930
Tensile Strength: Yield (Proof), MPa 51 to 240
660

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 640
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
16
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.2
4.2
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1180
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 18
240
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 390
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 14 to 27
33
Strength to Weight: Bending, points 21 to 33
27
Thermal Diffusivity, mm2/s 64
4.2
Thermal Shock Resistance, points 6.0 to 12
26

Alloy Composition

Aluminum (Al), % 95.7 to 98.8
0
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0 to 0.1
24 to 26
Copper (Cu), % 0 to 0.3
1.2 to 2.0
Iron (Fe), % 0 to 0.7
56.8 to 64.3
Magnesium (Mg), % 0.2 to 0.6
0
Manganese (Mn), % 1.0 to 1.5
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.6
0 to 0.8
Sulfur (S), % 0
0 to 0.0020
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0
0.8 to 1.2
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0