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2195 Aluminum vs. S42010 Stainless Steel

2195 aluminum belongs to the aluminum alloys classification, while S42010 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 S42010 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.3
18
Fatigue Strength, MPa 190
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 350
370
Tensile Strength: Ultimate (UTS), MPa 590
590
Tensile Strength: Yield (Proof), MPa 560
350

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 210
800
Melting Completion (Liquidus), °C 660
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
29
Thermal Expansion, µm/m-K 23
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 100
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 31
8.5
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.6
2.2
Embodied Energy, MJ/kg 160
30
Embodied Water, L/kg 1470
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
95
Resilience: Unit (Modulus of Resilience), kJ/m3 2290
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 55
21
Strength to Weight: Bending, points 53
20
Thermal Diffusivity, mm2/s 49
7.9
Thermal Shock Resistance, points 26
21

Alloy Composition

Aluminum (Al), % 91.9 to 94.9
0
Carbon (C), % 0
0.15 to 0.3
Chromium (Cr), % 0
13.5 to 15
Copper (Cu), % 3.7 to 4.3
0
Iron (Fe), % 0 to 0.15
80.9 to 85.6
Lithium (Li), % 0.8 to 1.2
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.85
Nickel (Ni), % 0
0.35 to 0.85
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.12
0 to 1.0
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