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6463 Aluminum vs. EN 1.4439 Stainless Steel

6463 aluminum belongs to the aluminum alloys classification, while EN 1.4439 stainless steel belongs to the iron alloys. There are 31 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 6463 aluminum and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 42 to 74
220
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 9.0 to 17
40
Fatigue Strength, MPa 45 to 76
270
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Shear Strength, MPa 86 to 150
470
Tensile Strength: Ultimate (UTS), MPa 140 to 230
680
Tensile Strength: Yield (Proof), MPa 82 to 200
310

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 160
980
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 620
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 190 to 210
14
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 55
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 170 to 180
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
4.5
Embodied Energy, MJ/kg 150
61
Embodied Water, L/kg 1190
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
220
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 300
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 14 to 24
24
Strength to Weight: Bending, points 22 to 31
22
Thermal Diffusivity, mm2/s 79 to 86
3.8
Thermal Shock Resistance, points 6.3 to 10
15

Alloy Composition

Aluminum (Al), % 97.9 to 99.4
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.15
58.7 to 66.9
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.050
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
12.5 to 14.5
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.2 to 0.6
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.15
0