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390.0 Aluminum vs. EN 1.4460 Stainless Steel

390.0 aluminum belongs to the aluminum alloys classification, while EN 1.4460 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 1.4460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
220
Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 1.0
21
Fatigue Strength, MPa 76 to 110
330
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 28
80
Tensile Strength: Ultimate (UTS), MPa 280 to 300
750
Tensile Strength: Yield (Proof), MPa 240 to 270
510

Thermal Properties

Latent Heat of Fusion, J/g 640
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 560
1390
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
18
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 7.3
3.4
Embodied Energy, MJ/kg 130
48
Embodied Water, L/kg 950
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
140
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
640
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 28 to 30
27
Strength to Weight: Bending, points 35 to 36
24
Thermal Diffusivity, mm2/s 56
4.0
Thermal Shock Resistance, points 14 to 15
20

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.3
60.2 to 69.2
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 0
1.3 to 2.0
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 16 to 18
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0