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5049 Aluminum vs. S35135 Stainless Steel

5049 aluminum belongs to the aluminum alloys classification, while S35135 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 5049 aluminum and the bottom bar is S35135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 2.0 to 18
34
Fatigue Strength, MPa 79 to 130
180
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Shear Strength, MPa 130 to 190
390
Tensile Strength: Ultimate (UTS), MPa 210 to 330
590
Tensile Strength: Yield (Proof), MPa 91 to 280
230

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 620
1380
Specific Heat Capacity, J/kg-K 900
470
Thermal Expansion, µm/m-K 24
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.5
6.8
Embodied Energy, MJ/kg 150
94
Embodied Water, L/kg 1180
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 31
160
Resilience: Unit (Modulus of Resilience), kJ/m3 59 to 570
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 22 to 34
20
Strength to Weight: Bending, points 29 to 39
19
Thermal Shock Resistance, points 9.3 to 15
13

Alloy Composition

Aluminum (Al), % 94.7 to 97.9
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.3
20 to 25
Copper (Cu), % 0 to 0.1
0 to 0.75
Iron (Fe), % 0 to 0.5
28.3 to 45
Magnesium (Mg), % 1.6 to 2.5
0
Manganese (Mn), % 0.5 to 1.1
0 to 1.0
Molybdenum (Mo), % 0
4.0 to 4.8
Nickel (Ni), % 0
30 to 38
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.4
0.6 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.1
0.4 to 1.0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0