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EN 1.4460 Stainless Steel vs. 3102 Aluminum

EN 1.4460 stainless steel belongs to the iron alloys classification, while 3102 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 1.4460 stainless steel and the bottom bar is 3102 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 21
23 to 28
Fatigue Strength, MPa 330
31 to 34
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
26
Shear Strength, MPa 470
58 to 65
Tensile Strength: Ultimate (UTS), MPa 750
92 to 100
Tensile Strength: Yield (Proof), MPa 510
28 to 34

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1100
180
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1390
640
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 15
230
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
56
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
190

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.0
Density, g/cm3 7.7
2.7
Embodied Carbon, kg CO2/kg material 3.4
8.2
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 640
5.8 to 8.3
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 27
9.4 to 10
Strength to Weight: Bending, points 24
17 to 18
Thermal Diffusivity, mm2/s 4.0
92
Thermal Shock Resistance, points 20
4.1 to 4.4

Alloy Composition

Aluminum (Al), % 0
97.9 to 99.95
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 25 to 28
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 60.2 to 69.2
0 to 0.7
Manganese (Mn), % 0 to 2.0
0.050 to 0.4
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 0.4
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15