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S24000 Stainless Steel vs. 4104 Aluminum

S24000 stainless steel belongs to the iron alloys classification, while 4104 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (10, 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 S24000 stainless steel and the bottom bar is 4104 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 39
2.4
Fatigue Strength, MPa 370
42
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 530
63
Tensile Strength: Ultimate (UTS), MPa 770
110
Tensile Strength: Yield (Proof), MPa 430
60

Thermal Properties

Latent Heat of Fusion, J/g 280
540
Maximum Temperature: Mechanical, °C 910
160
Melting Completion (Liquidus), °C 1390
600
Melting Onset (Solidus), °C 1350
560
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 17
22

Otherwise Unclassified Properties

Base Metal Price, % relative 12
9.5
Density, g/cm3 7.6
2.6
Embodied Carbon, kg CO2/kg material 2.7
8.0
Embodied Energy, MJ/kg 39
150
Embodied Water, L/kg 150
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 260
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 470
25
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
54
Strength to Weight: Axial, points 28
12
Strength to Weight: Bending, points 24
20
Thermal Shock Resistance, points 16
5.1

Alloy Composition

Aluminum (Al), % 0
85.8 to 90
Bismuth (Bi), % 0
0.020 to 0.2
Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 61.5 to 69
0 to 0.8
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 11.5 to 14.5
0 to 0.1
Nickel (Ni), % 2.3 to 3.7
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 0.75
9.0 to 10.5
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15