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EN 1.4874 Stainless Steel vs. 5049 Aluminum

EN 1.4874 stainless steel belongs to the iron alloys classification, while 5049 aluminum belongs to the aluminum alloys. There are 28 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 EN 1.4874 stainless steel and the bottom bar is 5049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
52 to 88
Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 6.7
2.0 to 18
Fatigue Strength, MPa 180
79 to 130
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 480
210 to 330
Tensile Strength: Yield (Proof), MPa 360
91 to 280

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1150
190
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1400
620
Specific Heat Capacity, J/kg-K 450
900
Thermal Conductivity, W/m-K 13
140
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
8.5
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 290
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
6.0 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 310
59 to 570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 16
22 to 34
Strength to Weight: Bending, points 16
29 to 39
Thermal Diffusivity, mm2/s 3.3
56
Thermal Shock Resistance, points 11
9.3 to 15

Alloy Composition

Aluminum (Al), % 0
94.7 to 97.9
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 0.1
Iron (Fe), % 23 to 38.9
0 to 0.5
Magnesium (Mg), % 0
1.6 to 2.5
Manganese (Mn), % 0 to 2.0
0.5 to 1.1
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 0.4
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.1
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15