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6463 Aluminum vs. EN 1.4618 Stainless Steel

6463 aluminum belongs to the aluminum alloys classification, while EN 1.4618 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 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 42 to 74
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 9.0 to 17
51
Fatigue Strength, MPa 45 to 76
240 to 250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 86 to 150
480 to 500
Tensile Strength: Ultimate (UTS), MPa 140 to 230
680 to 700
Tensile Strength: Yield (Proof), MPa 82 to 200
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 160
900
Melting Completion (Liquidus), °C 660
1400
Melting Onset (Solidus), °C 620
1360
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190 to 210
15
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 55
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 170 to 180
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 300
160 to 170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 14 to 24
24 to 25
Strength to Weight: Bending, points 22 to 31
22 to 23
Thermal Diffusivity, mm2/s 79 to 86
4.0
Thermal Shock Resistance, points 6.3 to 10
15 to 16

Alloy Composition

Aluminum (Al), % 97.9 to 99.4
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.2
1.0 to 2.5
Iron (Fe), % 0 to 0.15
62.7 to 72.5
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.050
5.5 to 9.5
Nickel (Ni), % 0
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0.2 to 0.6
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.15
0