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EN 1.4415 Stainless Steel vs. EN AC-44000 Aluminum

EN 1.4415 stainless steel belongs to the iron alloys classification, while EN AC-44000 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 EN AC-44000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 17 to 20
7.3
Fatigue Strength, MPa 470 to 510
64
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 830 to 930
180
Tensile Strength: Yield (Proof), MPa 730 to 840
86

Thermal Properties

Latent Heat of Fusion, J/g 280
560
Maximum Temperature: Mechanical, °C 790
170
Melting Completion (Liquidus), °C 1460
590
Melting Onset (Solidus), °C 1420
590
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 19
140
Thermal Expansion, µm/m-K 9.9
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
36
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
130

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.9
2.5
Embodied Carbon, kg CO2/kg material 3.6
7.8
Embodied Energy, MJ/kg 51
150
Embodied Water, L/kg 120
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
11
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
51
Stiffness to Weight: Axial, points 14
16
Stiffness to Weight: Bending, points 25
55
Strength to Weight: Axial, points 29 to 33
20
Strength to Weight: Bending, points 25 to 27
28
Thermal Diffusivity, mm2/s 5.1
61
Thermal Shock Resistance, points 30 to 34
8.4

Alloy Composition

Aluminum (Al), % 0
87.1 to 90
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 11.5 to 13.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 75.9 to 82.4
0 to 0.19
Magnesium (Mg), % 0
0 to 0.45
Manganese (Mn), % 0 to 0.5
0 to 0.1
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
10 to 11.8
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.010
0 to 0.15
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1