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2195 Aluminum vs. S35500 Stainless Steel

2195 aluminum belongs to the aluminum alloys classification, while S35500 stainless steel belongs to the iron 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 2195 aluminum and the bottom bar is S35500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

Aluminum (Al), % 91.9 to 94.9
0
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
15 to 16
Copper (Cu), % 3.7 to 4.3
0
Iron (Fe), % 0 to 0.15
73.2 to 77.7
Lithium (Li), % 0.8 to 1.2
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0
4.0 to 5.0
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.12
0 to 0.5
Silver (Ag), % 0.25 to 0.6
0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.080 to 0.16
0
Residuals, % 0 to 0.15
0