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EN 1.4415 Stainless Steel vs. 444.0 Aluminum

EN 1.4415 stainless steel belongs to the iron alloys classification, while 444.0 aluminum belongs to the aluminum alloys. There are 29 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 1.4415 stainless steel and the bottom bar is 444.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 17 to 20
25
Fatigue Strength, MPa 470 to 510
51
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 830 to 930
190
Tensile Strength: Yield (Proof), MPa 730 to 840
83

Thermal Properties

Latent Heat of Fusion, J/g 280
500
Maximum Temperature: Mechanical, °C 790
170
Melting Completion (Liquidus), °C 1460
610
Melting Onset (Solidus), °C 1420
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 19
160
Thermal Expansion, µm/m-K 9.9
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
140

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 3.6
7.9
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 120
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
39
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
49
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 29 to 33
20
Strength to Weight: Bending, points 25 to 27
28
Thermal Diffusivity, mm2/s 5.1
67
Thermal Shock Resistance, points 30 to 34
8.8

Alloy Composition

Aluminum (Al), % 0
90.5 to 93.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 11.5 to 13.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 75.9 to 82.4
0 to 0.6
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 0.5
0 to 0.35
Molybdenum (Mo), % 1.5 to 2.5
0
Nickel (Ni), % 4.5 to 6.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
6.5 to 7.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.010
0 to 0.25
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15