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S20910 Stainless Steel vs. 357.0 Aluminum

S20910 stainless steel belongs to the iron alloys classification, while 357.0 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 357.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 290
95
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 14 to 39
3.4
Fatigue Strength, MPa 310 to 460
76
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Shear Strength, MPa 500 to 570
200
Tensile Strength: Ultimate (UTS), MPa 780 to 940
350
Tensile Strength: Yield (Proof), MPa 430 to 810
300

Thermal Properties

Latent Heat of Fusion, J/g 300
500
Maximum Temperature: Mechanical, °C 1080
170
Melting Completion (Liquidus), °C 1420
620
Melting Onset (Solidus), °C 1380
560
Specific Heat Capacity, J/kg-K 480
910
Thermal Conductivity, W/m-K 13
150
Thermal Expansion, µm/m-K 16
21

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.5
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 4.8
8.0
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
11
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
620
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 28 to 33
38
Strength to Weight: Bending, points 24 to 27
43
Thermal Diffusivity, mm2/s 3.6
64
Thermal Shock Resistance, points 17 to 21
17

Alloy Composition

Aluminum (Al), % 0
91.3 to 93.1
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 0.15
Magnesium (Mg), % 0
0.45 to 0.6
Manganese (Mn), % 4.0 to 6.0
0 to 0.030
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
6.5 to 7.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15