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1080 Aluminum vs. EN 1.4598 Stainless Steel

1080 aluminum belongs to the aluminum alloys classification, while EN 1.4598 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 1080 aluminum and the bottom bar is EN 1.4598 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 4.6 to 40
46
Fatigue Strength, MPa 21 to 48
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 49 to 78
420
Tensile Strength: Ultimate (UTS), MPa 72 to 130
600
Tensile Strength: Yield (Proof), MPa 17 to 120
230

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 170
950
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 640
1390
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
15
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
3.8
Embodied Energy, MJ/kg 160
52
Embodied Water, L/kg 1200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.7 to 21
220
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 7.4 to 14
21
Strength to Weight: Bending, points 14 to 22
20
Thermal Diffusivity, mm2/s 94
4.1
Thermal Shock Resistance, points 3.2 to 6.0
14

Alloy Composition

Aluminum (Al), % 99.8 to 100
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.030
1.3 to 1.8
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.15
60.8 to 70.1
Magnesium (Mg), % 0 to 0.020
0
Manganese (Mn), % 0 to 0.020
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0
10 to 13
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0.1 to 0.2
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.030
0
Residuals, % 0 to 0.020
0