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S35500 Stainless Steel vs. 2195 Aluminum

S35500 stainless steel belongs to the iron alloys classification, while 2195 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 2195 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 14
9.3
Fatigue Strength, MPa 690 to 730
190
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Shear Strength, MPa 810 to 910
350
Tensile Strength: Ultimate (UTS), MPa 1330 to 1490
590
Tensile Strength: Yield (Proof), MPa 1200 to 1280
560

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Maximum Temperature: Mechanical, °C 870
210
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
550
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 11
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
100

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 3.5
8.6
Embodied Energy, MJ/kg 47
160
Embodied Water, L/kg 130
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
54
Resilience: Unit (Modulus of Resilience), kJ/m3 3610 to 4100
2290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 47 to 53
55
Strength to Weight: Bending, points 34 to 37
53
Thermal Diffusivity, mm2/s 4.4
49
Thermal Shock Resistance, points 44 to 49
26

Alloy Composition

Aluminum (Al), % 0
91.9 to 94.9
Carbon (C), % 0.1 to 0.15
0
Chromium (Cr), % 15 to 16
0
Copper (Cu), % 0
3.7 to 4.3
Iron (Fe), % 73.2 to 77.7
0 to 0.15
Lithium (Li), % 0
0.8 to 1.2
Magnesium (Mg), % 0
0.25 to 0.8
Manganese (Mn), % 0.5 to 1.3
0 to 0.25
Molybdenum (Mo), % 2.5 to 3.2
0
Nickel (Ni), % 4.0 to 5.0
0
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
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0.080 to 0.16
Residuals, % 0
0 to 0.15