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S20910 Stainless Steel vs. 6063A Aluminum

S20910 stainless steel belongs to the iron alloys classification, while 6063A aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 S20910 stainless steel and the bottom bar is 6063A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 14 to 39
6.7 to 18
Fatigue Strength, MPa 310 to 460
53 to 80
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 500 to 570
78 to 150
Tensile Strength: Ultimate (UTS), MPa 780 to 940
130 to 260
Tensile Strength: Yield (Proof), MPa 430 to 810
55 to 200

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1080
160
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1380
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 13
200
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.8
8.3
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
13 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
22 to 280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 28 to 33
13 to 26
Strength to Weight: Bending, points 24 to 27
21 to 33
Thermal Diffusivity, mm2/s 3.6
83
Thermal Shock Resistance, points 17 to 21
5.6 to 11

Alloy Composition

Aluminum (Al), % 0
97.5 to 99
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0 to 0.050
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 52.1 to 62.1
0.15 to 0.35
Magnesium (Mg), % 0
0.6 to 0.9
Manganese (Mn), % 4.0 to 6.0
0 to 0.15
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15

Comparable Variants