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6025 Aluminum vs. EN 1.4405 Stainless Steel

6025 aluminum belongs to the aluminum alloys classification, while EN 1.4405 stainless steel belongs to the iron alloys. There are 29 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 6025 aluminum and the bottom bar is EN 1.4405 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 2.8 to 10
17
Fatigue Strength, MPa 67 to 110
370
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 190 to 240
860
Tensile Strength: Yield (Proof), MPa 68 to 210
610

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 160
870
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 550
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
17
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.5
2.8
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 1160
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 15
130
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 310
950
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 19 to 24
31
Strength to Weight: Bending, points 26 to 31
26
Thermal Diffusivity, mm2/s 54
4.6
Thermal Shock Resistance, points 8.2 to 10
29

Alloy Composition

Aluminum (Al), % 91.7 to 96.3
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0 to 0.2
15 to 17
Copper (Cu), % 0.2 to 0.7
0
Iron (Fe), % 0 to 0.7
73.6 to 80.3
Magnesium (Mg), % 2.1 to 3.0
0
Manganese (Mn), % 0.6 to 1.4
0 to 1.0
Molybdenum (Mo), % 0
0.7 to 1.5
Nickel (Ni), % 0
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.8 to 1.5
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.15
0