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EN 1.4905 Stainless Steel vs. 5454 Aluminum

EN 1.4905 stainless steel belongs to the iron alloys classification, while 5454 aluminum belongs to the aluminum 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 EN 1.4905 stainless steel and the bottom bar is 5454 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 19
2.3 to 18
Fatigue Strength, MPa 330
83 to 160
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 460
140 to 200
Tensile Strength: Ultimate (UTS), MPa 740
230 to 350
Tensile Strength: Yield (Proof), MPa 510
97 to 290

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 660
190
Melting Completion (Liquidus), °C 1480
650
Melting Onset (Solidus), °C 1440
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 26
130
Thermal Expansion, µm/m-K 11
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
34
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 2.8
8.6
Embodied Energy, MJ/kg 40
150
Embodied Water, L/kg 90
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
6.3 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 680
68 to 590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 26
23 to 36
Strength to Weight: Bending, points 23
30 to 41
Thermal Diffusivity, mm2/s 7.0
55
Thermal Shock Resistance, points 25
10 to 16

Alloy Composition

Aluminum (Al), % 0 to 0.040
94.5 to 97.1
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
0
Chromium (Cr), % 8.5 to 9.5
0.050 to 0.2
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 86.2 to 88.8
0 to 0.4
Magnesium (Mg), % 0
2.4 to 3.0
Manganese (Mn), % 0.3 to 0.6
0.5 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0.1 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.1 to 0.5
0 to 0.25
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.2
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15