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7005 Aluminum vs. EN 1.4411 Stainless Steel

7005 aluminum belongs to the aluminum alloys classification, while EN 1.4411 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 7005 aluminum and the bottom bar is EN 1.4411 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 10 to 20
17
Fatigue Strength, MPa 100 to 190
370
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 200 to 400
870
Tensile Strength: Yield (Proof), MPa 95 to 350
600

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Maximum Temperature: Mechanical, °C 200
880
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 610
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 140 to 170
17
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35 to 43
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110 to 130
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
13
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.3
3.0
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1150
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 32 to 57
130
Resilience: Unit (Modulus of Resilience), kJ/m3 65 to 850
920
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 19 to 38
31
Strength to Weight: Bending, points 26 to 41
26
Thermal Diffusivity, mm2/s 54 to 65
4.6
Thermal Shock Resistance, points 8.7 to 18
28

Alloy Composition

Aluminum (Al), % 91 to 94.7
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0.060 to 0.2
15 to 17
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.4
73.1 to 79.5
Magnesium (Mg), % 1.0 to 1.8
0
Manganese (Mn), % 0.2 to 0.7
0 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
4.0 to 6.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.35
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0.010 to 0.060
0
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0 to 0.15
0