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EN 1.4874 Stainless Steel vs. 5070 Aluminum

EN 1.4874 stainless steel belongs to the iron alloys classification, while 5070 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 1.4874 stainless steel and the bottom bar is 5070 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
68
Elongation at Break, % 6.7
20
Fatigue Strength, MPa 180
150
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 480
300
Tensile Strength: Yield (Proof), MPa 360
140

Thermal Properties

Latent Heat of Fusion, J/g 300
390
Maximum Temperature: Mechanical, °C 1150
190
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1400
550
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 13
130
Thermal Expansion, µm/m-K 15
24

Otherwise Unclassified Properties

Base Metal Price, % relative 70
9.5
Density, g/cm3 8.4
2.7
Embodied Carbon, kg CO2/kg material 7.6
8.8
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 290
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
51
Resilience: Unit (Modulus of Resilience), kJ/m3 310
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 16
31
Strength to Weight: Bending, points 16
37
Thermal Diffusivity, mm2/s 3.3
53
Thermal Shock Resistance, points 11
14

Alloy Composition

Aluminum (Al), % 0
92.4 to 95.7
Carbon (C), % 0.35 to 0.65
0
Chromium (Cr), % 19 to 22
0 to 0.3
Cobalt (Co), % 18.5 to 22
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 23 to 38.9
0 to 0.4
Magnesium (Mg), % 0
3.5 to 4.5
Manganese (Mn), % 0 to 2.0
0.4 to 0.8
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 18 to 22
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0.4 to 0.8
Residuals, % 0
0 to 0.15