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S20910 Stainless Steel vs. Sintered 2014 Aluminum

S20910 stainless steel belongs to the iron alloys classification, while sintered 2014 aluminum belongs to the aluminum alloys. There are 27 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 S20910 stainless steel and the bottom bar is sintered 2014 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 14 to 39
0.5 to 3.0
Fatigue Strength, MPa 310 to 460
52 to 100
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 780 to 940
140 to 290
Tensile Strength: Yield (Proof), MPa 430 to 810
97 to 280

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1080
170
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1380
560
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 13
130
Thermal Expansion, µm/m-K 16
23

Otherwise Unclassified Properties

Base Metal Price, % relative 22
10
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 4.8
8.0
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
1.0 to 5.7
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
68 to 560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 28 to 33
13 to 27
Strength to Weight: Bending, points 24 to 27
20 to 33
Thermal Diffusivity, mm2/s 3.6
51
Thermal Shock Resistance, points 17 to 21
6.2 to 13

Alloy Composition

Aluminum (Al), % 0
91.5 to 96.3
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
3.5 to 5.0
Iron (Fe), % 52.1 to 62.1
0
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 4.0 to 6.0
0
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 to 1.2
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Residuals, % 0
0 to 1.5