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3105 Aluminum vs. EN 1.4584 Stainless Steel

3105 aluminum belongs to the aluminum alloys classification, while EN 1.4584 stainless steel belongs to the iron alloys. There are 30 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 3105 aluminum and the bottom bar is EN 1.4584 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29 to 67
150
Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 1.1 to 20
34
Fatigue Strength, MPa 39 to 95
170
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 120 to 240
500
Tensile Strength: Yield (Proof), MPa 46 to 220
210

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 660
1440
Melting Onset (Solidus), °C 640
1390
Specific Heat Capacity, J/kg-K 900
460
Thermal Conductivity, W/m-K 170
17
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.8
8.1
Embodied Carbon, kg CO2/kg material 8.2
5.7
Embodied Energy, MJ/kg 150
78
Embodied Water, L/kg 1180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
140
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12 to 24
17
Strength to Weight: Bending, points 20 to 31
17
Thermal Diffusivity, mm2/s 68
4.5
Thermal Shock Resistance, points 5.2 to 11
12

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0 to 0.2
19 to 21
Copper (Cu), % 0 to 0.3
1.0 to 3.0
Iron (Fe), % 0 to 0.7
41.7 to 52
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0 to 0.15
0