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EN 1.4584 Stainless Steel vs. 3104 Aluminum

EN 1.4584 stainless steel belongs to the iron alloys classification, while 3104 aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4584 stainless steel and the bottom bar is 3104 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 34
1.1 to 20
Fatigue Strength, MPa 170
74 to 130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 500
170 to 310
Tensile Strength: Yield (Proof), MPa 210
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1440
650
Melting Onset (Solidus), °C 1390
600
Specific Heat Capacity, J/kg-K 460
900
Thermal Conductivity, W/m-K 17
160
Thermal Expansion, µm/m-K 15
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
41
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
130

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 8.1
2.8
Embodied Carbon, kg CO2/kg material 5.7
8.4
Embodied Energy, MJ/kg 78
150
Embodied Water, L/kg 200
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
1.6 to 60
Resilience: Unit (Modulus of Resilience), kJ/m3 110
34 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 17
17 to 31
Strength to Weight: Bending, points 17
25 to 37
Thermal Diffusivity, mm2/s 4.5
64
Thermal Shock Resistance, points 12
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
95.1 to 98.4
Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 19 to 21
0
Copper (Cu), % 1.0 to 3.0
0.050 to 0.25
Gallium (Ga), % 0
0 to 0.050
Iron (Fe), % 41.7 to 52
0 to 0.8
Magnesium (Mg), % 0
0.8 to 1.3
Manganese (Mn), % 0 to 2.0
0.8 to 1.4
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 24 to 26
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15