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EN 1.4310 Stainless Steel vs. 5026 Aluminum

EN 1.4310 stainless steel belongs to the iron alloys classification, while 5026 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4310 stainless steel and the bottom bar is 5026 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 14 to 45
5.1 to 11
Fatigue Strength, MPa 240 to 330
94 to 140
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Shear Strength, MPa 510 to 550
150 to 180
Tensile Strength: Ultimate (UTS), MPa 730 to 900
260 to 320
Tensile Strength: Yield (Proof), MPa 260 to 570
120 to 250

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 910
210
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1380
510
Specific Heat Capacity, J/kg-K 480
890
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
31
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
99

Otherwise Unclassified Properties

Base Metal Price, % relative 14
9.5
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 2.9
8.9
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 140
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
15 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
100 to 440
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 26 to 32
26 to 32
Strength to Weight: Bending, points 23 to 27
33 to 37
Thermal Diffusivity, mm2/s 4.0
52
Thermal Shock Resistance, points 15 to 18
11 to 14

Alloy Composition

Aluminum (Al), % 0
88.2 to 94.7
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 16 to 19
0 to 0.3
Copper (Cu), % 0
0.1 to 0.8
Iron (Fe), % 66.4 to 78
0.2 to 1.0
Magnesium (Mg), % 0
3.9 to 4.9
Manganese (Mn), % 0 to 2.0
0.6 to 1.8
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 6.0 to 9.5
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 2.0
0.55 to 1.4
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 1.0
Zirconium (Zr), % 0
0 to 0.3
Residuals, % 0
0 to 0.15