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S20910 Stainless Steel vs. 1050A Aluminum

S20910 stainless steel belongs to the iron alloys classification, while 1050A aluminum belongs to the aluminum alloys. There are 29 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 S20910 stainless steel and the bottom bar is 1050A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
20 to 45
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 14 to 39
1.1 to 33
Fatigue Strength, MPa 310 to 460
22 to 55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 500 to 570
44 to 97
Tensile Strength: Ultimate (UTS), MPa 780 to 940
68 to 170
Tensile Strength: Yield (Proof), MPa 430 to 810
22 to 150

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1080
170
Melting Completion (Liquidus), °C 1420
660
Melting Onset (Solidus), °C 1380
650
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 13
230
Thermal Expansion, µm/m-K 16
24

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.8
8.2
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
1.9 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
3.7 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 28 to 33
6.9 to 18
Strength to Weight: Bending, points 24 to 27
14 to 25
Thermal Diffusivity, mm2/s 3.6
94
Thermal Shock Resistance, points 17 to 21
3.0 to 7.6

Alloy Composition

Aluminum (Al), % 0
99.5 to 100
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 52.1 to 62.1
0 to 0.4
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 4.0 to 6.0
0 to 0.050
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 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.070

Comparable Variants