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354.0 Aluminum vs. EN 1.4640 Stainless Steel

354.0 aluminum belongs to the aluminum alloys classification, while EN 1.4640 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 354.0 aluminum and the bottom bar is EN 1.4640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 2.4 to 3.0
51
Fatigue Strength, MPa 92 to 120
230 to 250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 360 to 380
620 to 650
Tensile Strength: Yield (Proof), MPa 280 to 310
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 530
280
Maximum Temperature: Mechanical, °C 170
930
Melting Completion (Liquidus), °C 600
1420
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
14
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 150
40
Embodied Water, L/kg 1070
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.6 to 9.8
250 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 670
150 to 170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 37 to 39
22 to 23
Strength to Weight: Bending, points 42 to 44
21
Thermal Diffusivity, mm2/s 52
4.0
Thermal Shock Resistance, points 17 to 18
14 to 15

Alloy Composition


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Aluminum (Al), % 87.3 to 89.4
0
Carbon (C), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Copper (Cu), % 1.6 to 2.0
1.3 to 2.0
Iron (Fe), % 0 to 0.2
67.4 to 73.6
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.1
1.5 to 4.0
Nickel (Ni), % 0
5.5 to 6.9
Nitrogen (N), % 0
0.030 to 0.11
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 8.6 to 9.4
0 to 0.5
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