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EN 1.4005 Stainless Steel vs. 308.0 Aluminum

EN 1.4005 stainless steel belongs to the iron alloys classification, while 308.0 aluminum belongs to the aluminum alloys. There are 30 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 308.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 13 to 21
2.0
Fatigue Strength, MPa 240 to 290
89
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 390 to 450
150
Tensile Strength: Ultimate (UTS), MPa 630 to 750
190
Tensile Strength: Yield (Proof), MPa 370 to 500
110

Thermal Properties

Latent Heat of Fusion, J/g 270
470
Maximum Temperature: Mechanical, °C 760
170
Melting Completion (Liquidus), °C 1440
620
Melting Onset (Solidus), °C 1400
540
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 30
140
Thermal Expansion, µm/m-K 10
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
37
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
110

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
10
Density, g/cm3 7.7
2.9
Embodied Carbon, kg CO2/kg material 2.0
7.7
Embodied Energy, MJ/kg 28
140
Embodied Water, L/kg 100
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
3.3
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 650
83
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 23 to 27
18
Strength to Weight: Bending, points 21 to 24
25
Thermal Diffusivity, mm2/s 8.1
55
Thermal Shock Resistance, points 23 to 27
9.2

Alloy Composition

Aluminum (Al), % 0
85.7 to 91
Carbon (C), % 0.060 to 0.15
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 82.4 to 87.8
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.5
0 to 0.5
Molybdenum (Mo), % 0 to 0.6
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
5.0 to 6.0
Sulfur (S), % 0.15 to 0.35
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5