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EN 1.4432 Stainless Steel vs. 2095 Aluminum

EN 1.4432 stainless steel belongs to the iron alloys classification, while 2095 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 1.4432 stainless steel and the bottom bar is 2095 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 44
8.5
Fatigue Strength, MPa 220
200
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Shear Strength, MPa 420
410
Tensile Strength: Ultimate (UTS), MPa 610
700
Tensile Strength: Yield (Proof), MPa 250
610

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Maximum Temperature: Mechanical, °C 960
210
Melting Completion (Liquidus), °C 1450
660
Melting Onset (Solidus), °C 1400
540
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 16
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
110

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.9
3.0
Embodied Carbon, kg CO2/kg material 3.9
8.6
Embodied Energy, MJ/kg 54
160
Embodied Water, L/kg 150
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
57
Resilience: Unit (Modulus of Resilience), kJ/m3 150
2640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 21
65
Strength to Weight: Bending, points 20
59
Thermal Diffusivity, mm2/s 4.0
49
Thermal Shock Resistance, points 14
31

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.9
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16.5 to 18.5
0
Copper (Cu), % 0
3.9 to 4.6
Iron (Fe), % 62.3 to 70.5
0 to 0.15
Lithium (Li), % 0
0.7 to 1.5
Magnesium (Mg), % 0
0.25 to 0.8
Manganese (Mn), % 0 to 2.0
0 to 0.25
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 10.5 to 13
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.12
Silver (Ag), % 0
0.25 to 0.6
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0.040 to 0.18
Residuals, % 0
0 to 0.15