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EN 1.4460 Stainless Steel vs. 3105 Aluminum

EN 1.4460 stainless steel belongs to the iron alloys classification, while 3105 aluminum belongs to the aluminum alloys. There are 31 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 1.4460 stainless steel and the bottom bar is 3105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
29 to 67
Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 21
1.1 to 20
Fatigue Strength, MPa 330
39 to 95
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
26
Shear Strength, MPa 470
77 to 140
Tensile Strength: Ultimate (UTS), MPa 750
120 to 240
Tensile Strength: Yield (Proof), MPa 510
46 to 220

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
660
Melting Onset (Solidus), °C 1390
640
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
170
Thermal Expansion, µm/m-K 13
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
44
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.5
Density, g/cm3 7.7
2.8
Embodied Carbon, kg CO2/kg material 3.4
8.2
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
2.6 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 640
15 to 340
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 27
12 to 24
Strength to Weight: Bending, points 24
20 to 31
Thermal Diffusivity, mm2/s 4.0
68
Thermal Shock Resistance, points 20
5.2 to 11

Alloy Composition

Aluminum (Al), % 0
96 to 99.5
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 25 to 28
0 to 0.2
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 60.2 to 69.2
0 to 0.7
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 0 to 2.0
0.3 to 0.8
Molybdenum (Mo), % 1.3 to 2.0
0
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.050 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 0.015
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.4
Residuals, % 0
0 to 0.15