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S13800 Stainless Steel vs. 6105 Aluminum

S13800 stainless steel belongs to the iron alloys classification, while 6105 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 S13800 stainless steel and the bottom bar is 6105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 11 to 18
9.0 to 16
Fatigue Strength, MPa 410 to 870
95 to 130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 610 to 1030
120 to 170
Tensile Strength: Ultimate (UTS), MPa 980 to 1730
190 to 280
Tensile Strength: Yield (Proof), MPa 660 to 1580
120 to 270

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 810
160
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1410
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
180 to 190
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
46 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
150 to 170

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 3.4
8.3
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 140
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 190
25 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 1090 to 5490
100 to 550
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 35 to 61
20 to 29
Strength to Weight: Bending, points 28 to 41
28 to 35
Thermal Diffusivity, mm2/s 4.3
72 to 79
Thermal Shock Resistance, points 33 to 58
8.6 to 12

Alloy Composition

Aluminum (Al), % 0.9 to 1.4
97.2 to 99
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 12.3 to 13.2
0 to 0.1
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 73.6 to 77.3
0 to 0.35
Magnesium (Mg), % 0
0.45 to 0.8
Manganese (Mn), % 0 to 0.2
0 to 0.1
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 7.5 to 8.5
0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0.6 to 1.0
Sulfur (S), % 0 to 0.0080
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15