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A201.0 Aluminum vs. EN 1.4587 Stainless Steel

A201.0 aluminum belongs to the aluminum alloys classification, while EN 1.4587 stainless steel belongs to the iron alloys. There are 29 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 A201.0 aluminum and the bottom bar is EN 1.4587 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 4.7
34
Fatigue Strength, MPa 97
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
80
Tensile Strength: Ultimate (UTS), MPa 480
540
Tensile Strength: Yield (Proof), MPa 420
250

Thermal Properties

Latent Heat of Fusion, J/g 390
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 120
17
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
36
Density, g/cm3 3.0
8.1
Embodied Carbon, kg CO2/kg material 8.1
6.3
Embodied Energy, MJ/kg 150
87
Embodied Water, L/kg 1150
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1250
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 44
18
Strength to Weight: Bending, points 45
18
Thermal Diffusivity, mm2/s 46
4.5
Thermal Shock Resistance, points 21
13

Alloy Composition

Aluminum (Al), % 93.7 to 95.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 4.0 to 5.0
2.0 to 3.0
Iron (Fe), % 0 to 0.1
32.7 to 41.9
Magnesium (Mg), % 0.15 to 0.35
0
Manganese (Mn), % 0.2 to 0.4
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
28 to 30
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.15 to 0.35
0
Residuals, % 0 to 0.1
0