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390.0 Aluminum vs. EN 1.4415 Stainless Steel

390.0 aluminum belongs to the aluminum alloys classification, while EN 1.4415 stainless steel belongs to the iron 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 390.0 aluminum and the bottom bar is EN 1.4415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 1.0
17 to 20
Fatigue Strength, MPa 76 to 110
470 to 510
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Tensile Strength: Ultimate (UTS), MPa 280 to 300
830 to 930
Tensile Strength: Yield (Proof), MPa 240 to 270
730 to 840

Thermal Properties

Latent Heat of Fusion, J/g 640
280
Maximum Temperature: Mechanical, °C 170
790
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 560
1420
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
19
Thermal Expansion, µm/m-K 18
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
13
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 7.3
3.6
Embodied Energy, MJ/kg 130
51
Embodied Water, L/kg 950
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
150 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
1350 to 1790
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 28 to 30
29 to 33
Strength to Weight: Bending, points 35 to 36
25 to 27
Thermal Diffusivity, mm2/s 56
5.1
Thermal Shock Resistance, points 14 to 15
30 to 34

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
11.5 to 13.5
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.3
75.9 to 82.4
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0 to 0.5
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 0
4.5 to 6.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 16 to 18
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0 to 0.010
Vanadium (V), % 0
0.1 to 0.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0

Comparable Variants