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6105 Aluminum vs. S28200 Stainless Steel

6105 aluminum belongs to the aluminum alloys classification, while S28200 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 6105 aluminum and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 9.0 to 16
45
Fatigue Strength, MPa 95 to 130
430
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 120 to 170
610
Tensile Strength: Ultimate (UTS), MPa 190 to 280
870
Tensile Strength: Yield (Proof), MPa 120 to 270
460

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 160
900
Melting Completion (Liquidus), °C 650
1380
Melting Onset (Solidus), °C 600
1330
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 23
18

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1180
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 27
330
Resilience: Unit (Modulus of Resilience), kJ/m3 100 to 550
540
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 51
26
Strength to Weight: Axial, points 20 to 29
32
Strength to Weight: Bending, points 28 to 35
27
Thermal Shock Resistance, points 8.6 to 12
17

Alloy Composition

Aluminum (Al), % 97.2 to 99
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
17 to 19
Copper (Cu), % 0 to 0.1
0.75 to 1.3
Iron (Fe), % 0 to 0.35
57.7 to 64.1
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.1
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.6 to 1.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0