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S35500 Stainless Steel vs. C443.0 Aluminum

S35500 stainless steel belongs to the iron alloys classification, while C443.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 S35500 stainless steel and the bottom bar is C443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 14
9.0
Fatigue Strength, MPa 690 to 730
120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
27
Shear Strength, MPa 810 to 910
130
Tensile Strength: Ultimate (UTS), MPa 1330 to 1490
230
Tensile Strength: Yield (Proof), MPa 1200 to 1280
100

Thermal Properties

Latent Heat of Fusion, J/g 280
470
Maximum Temperature: Mechanical, °C 870
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
140
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.5
7.9
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 130
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
17
Resilience: Unit (Modulus of Resilience), kJ/m3 3610 to 4100
70
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 47 to 53
24
Strength to Weight: Bending, points 34 to 37
31
Thermal Diffusivity, mm2/s 4.4
58
Thermal Shock Resistance, points 44 to 49
10

Alloy Composition

Aluminum (Al), % 0
89.6 to 95.5
Carbon (C), % 0.1 to 0.15
0
Chromium (Cr), % 15 to 16
0
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 73.2 to 77.7
0 to 2.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0.5 to 1.3
0 to 0.35
Molybdenum (Mo), % 2.5 to 3.2
0
Nickel (Ni), % 4.0 to 5.0
0 to 0.5
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0.070 to 0.13
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.25