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359.0 Aluminum vs. EN 1.4418 Stainless Steel

359.0 aluminum belongs to the aluminum alloys classification, while EN 1.4418 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 359.0 aluminum and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 3.8 to 4.9
16 to 20
Fatigue Strength, MPa 100
350 to 480
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Shear Strength, MPa 220 to 230
530 to 620
Tensile Strength: Ultimate (UTS), MPa 340 to 350
860 to 1000
Tensile Strength: Yield (Proof), MPa 250 to 280
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 530
280
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 8.0
2.8
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1090
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 15
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 540
730 to 1590
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 54
25
Strength to Weight: Axial, points 37 to 38
31 to 36
Strength to Weight: Bending, points 42 to 43
26 to 28
Thermal Diffusivity, mm2/s 59
4.0
Thermal Shock Resistance, points 16 to 17
31 to 36

Alloy Composition

Aluminum (Al), % 88.9 to 91
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.2
73.2 to 80.2
Magnesium (Mg), % 0.5 to 0.7
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 0
0.8 to 1.5
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 8.5 to 9.5
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0