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EN 1.4005 Stainless Steel vs. EN AC-42000 Aluminum

EN 1.4005 stainless steel belongs to the iron alloys classification, while EN AC-42000 aluminum belongs to the aluminum 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 EN 1.4005 stainless steel and the bottom bar is EN AC-42000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 13 to 21
1.1 to 2.4
Fatigue Strength, MPa 240 to 290
67 to 76
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 630 to 750
170 to 270
Tensile Strength: Yield (Proof), MPa 370 to 500
95 to 230

Thermal Properties

Latent Heat of Fusion, J/g 270
500
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1440
610
Melting Onset (Solidus), °C 1400
600
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 30
160
Thermal Expansion, µm/m-K 10
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
38
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
130

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 2.0
8.0
Embodied Energy, MJ/kg 28
150
Embodied Water, L/kg 100
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
2.8 to 5.7
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 650
64 to 370
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 23 to 27
18 to 28
Strength to Weight: Bending, points 21 to 24
26 to 35
Thermal Diffusivity, mm2/s 8.1
66
Thermal Shock Resistance, points 23 to 27
7.9 to 12

Alloy Composition

Aluminum (Al), % 0
89.9 to 93.3
Carbon (C), % 0.060 to 0.15
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 82.4 to 87.8
0 to 0.55
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 0
0.2 to 0.65
Manganese (Mn), % 0 to 1.5
0 to 0.35
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
6.5 to 7.5
Sulfur (S), % 0.15 to 0.35
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15