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S20910 Stainless Steel vs. 383.0 Aluminum

S20910 stainless steel belongs to the iron alloys classification, while 383.0 aluminum belongs to the aluminum alloys. There are 28 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 S20910 stainless steel and the bottom bar is 383.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
75
Elastic (Young's, Tensile) Modulus, GPa 200
73
Elongation at Break, % 14 to 39
3.5
Fatigue Strength, MPa 310 to 460
150
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
28
Tensile Strength: Ultimate (UTS), MPa 780 to 940
280
Tensile Strength: Yield (Proof), MPa 430 to 810
150

Thermal Properties

Latent Heat of Fusion, J/g 300
540
Maximum Temperature: Mechanical, °C 1080
170
Melting Completion (Liquidus), °C 1420
580
Melting Onset (Solidus), °C 1380
540
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 13
96
Thermal Expansion, µm/m-K 16
21

Otherwise Unclassified Properties

Base Metal Price, % relative 22
10
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 4.8
7.5
Embodied Energy, MJ/kg 68
140
Embodied Water, L/kg 180
1030

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
8.2
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
150
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 28 to 33
28
Strength to Weight: Bending, points 24 to 27
34
Thermal Diffusivity, mm2/s 3.6
39
Thermal Shock Resistance, points 17 to 21
13

Alloy Composition

Aluminum (Al), % 0
79.7 to 88.5
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
2.0 to 3.0
Iron (Fe), % 52.1 to 62.1
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 4.0 to 6.0
0 to 0.5
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0 to 0.3
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
9.5 to 11.5
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.15
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 3.0
Residuals, % 0
0 to 0.5