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A535.0 Aluminum vs. EN 1.4581 Stainless Steel

A535.0 aluminum belongs to the aluminum alloys classification, while EN 1.4581 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 A535.0 aluminum and the bottom bar is EN 1.4581 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 9.0
28
Fatigue Strength, MPa 95
150
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
78
Tensile Strength: Ultimate (UTS), MPa 250
510
Tensile Strength: Yield (Proof), MPa 120
210

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 170
990
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 100
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 79
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
21
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.3
4.2
Embodied Energy, MJ/kg 160
59
Embodied Water, L/kg 1180
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
120
Resilience: Unit (Modulus of Resilience), kJ/m3 120
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 26
18
Strength to Weight: Bending, points 33
18
Thermal Diffusivity, mm2/s 42
3.9
Thermal Shock Resistance, points 11
12

Alloy Composition

Aluminum (Al), % 91.4 to 93.4
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.2
61.4 to 71
Magnesium (Mg), % 6.5 to 7.5
0
Manganese (Mn), % 0.1 to 0.25
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Residuals, % 0 to 0.15
0