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5070 Aluminum vs. S32615 Stainless Steel

5070 aluminum belongs to the aluminum alloys classification, while S32615 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 5070 aluminum and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 20
28
Fatigue Strength, MPa 150
180
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
75
Shear Strength, MPa 190
400
Tensile Strength: Ultimate (UTS), MPa 300
620
Tensile Strength: Yield (Proof), MPa 140
250

Thermal Properties

Latent Heat of Fusion, J/g 390
370
Maximum Temperature: Mechanical, °C 190
990
Melting Completion (Liquidus), °C 640
1350
Melting Onset (Solidus), °C 550
1310
Specific Heat Capacity, J/kg-K 900
500
Thermal Expansion, µm/m-K 24
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
24
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.8
4.4
Embodied Energy, MJ/kg 150
63
Embodied Water, L/kg 1170
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
140
Resilience: Unit (Modulus of Resilience), kJ/m3 150
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 31
23
Strength to Weight: Bending, points 37
21
Thermal Shock Resistance, points 14
15

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.3
16.5 to 19.5
Copper (Cu), % 0 to 0.25
1.5 to 2.5
Iron (Fe), % 0 to 0.4
46.4 to 57.9
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.4 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 0
19 to 22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.25
4.8 to 6.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0.4 to 0.8
0
Residuals, % 0 to 0.15
0