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296.0 Aluminum vs. S20910 Stainless Steel

296.0 aluminum belongs to the aluminum alloys classification, while S20910 stainless steel belongs to the iron 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 296.0 aluminum and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75 to 90
230 to 290
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 3.2 to 7.1
14 to 39
Fatigue Strength, MPa 47 to 70
310 to 460
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 260 to 270
780 to 940
Tensile Strength: Yield (Proof), MPa 120 to 180
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 170
1080
Melting Completion (Liquidus), °C 630
1420
Melting Onset (Solidus), °C 540
1380
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 130 to 150
13
Thermal Expansion, µm/m-K 22
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
22
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.8
4.8
Embodied Energy, MJ/kg 150
68
Embodied Water, L/kg 1110
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.6 to 15
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 220
460 to 1640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 24 to 25
28 to 33
Strength to Weight: Bending, points 30 to 31
24 to 27
Thermal Diffusivity, mm2/s 51 to 56
3.6
Thermal Shock Resistance, points 12
17 to 21

Alloy Composition

Aluminum (Al), % 89 to 94
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.2
52.1 to 62.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.35
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0 to 0.35
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 2.0 to 3.0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.35
0