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EN 1.4024 Stainless Steel vs. 515.0 Aluminum

EN 1.4024 stainless steel belongs to the iron alloys classification, while 515.0 aluminum belongs to the aluminum alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 1.4024 stainless steel and the bottom bar is 515.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 15 to 22
10
Fatigue Strength, MPa 220 to 300
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Shear Strength, MPa 370 to 460
190
Tensile Strength: Ultimate (UTS), MPa 590 to 750
280

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
620
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 11
23

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 1.9
8.4
Embodied Energy, MJ/kg 27
150
Embodied Water, L/kg 100
1120

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 21 to 27
30
Strength to Weight: Bending, points 20 to 24
36
Thermal Shock Resistance, points 21 to 26
13

Alloy Composition

Aluminum (Al), % 0
93.6 to 96.6
Carbon (C), % 0.12 to 0.17
0
Chromium (Cr), % 12 to 14
0
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 83.8 to 87.9
0 to 1.3
Magnesium (Mg), % 0
2.5 to 4.0
Manganese (Mn), % 0 to 1.0
0.4 to 0.6
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.5 to 10
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15