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EN 1.4458 Stainless Steel vs. 2195 Aluminum

EN 1.4458 stainless steel belongs to the iron alloys classification, while 2195 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 EN 1.4458 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, % 34
9.3
Fatigue Strength, MPa 150
190
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 510
590
Tensile Strength: Yield (Proof), MPa 190
560

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1100
210
Melting Completion (Liquidus), °C 1420
660
Melting Onset (Solidus), °C 1370
550
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 15
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
34
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
100

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 8.0
3.0
Embodied Carbon, kg CO2/kg material 5.4
8.6
Embodied Energy, MJ/kg 75
160
Embodied Water, L/kg 200
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
54
Resilience: Unit (Modulus of Resilience), kJ/m3 89
2290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 17
55
Strength to Weight: Bending, points 18
53
Thermal Diffusivity, mm2/s 4.2
49
Thermal Shock Resistance, points 12
26

Alloy Composition


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Aluminum (Al), % 0
91.9 to 94.9
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 0 to 2.0
3.7 to 4.3
Iron (Fe), % 40.2 to 53
0 to 0.15
Lithium (Li), % 0
0.8 to 1.2
Magnesium (Mg), % 0
0.25 to 0.8
Manganese (Mn), % 0 to 2.0
0 to 0.25
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 26 to 30
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Sulfur (S), % 0 to 0.025
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