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224.0 Aluminum vs. EN 1.4901 Stainless Steel

224.0 aluminum belongs to the aluminum alloys classification, while EN 1.4901 stainless steel belongs to the iron 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 224.0 aluminum and the bottom bar is EN 1.4901 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.0 to 10
19
Fatigue Strength, MPa 86 to 120
310
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 380 to 420
740
Tensile Strength: Yield (Proof), MPa 280 to 330
490

Thermal Properties

Latent Heat of Fusion, J/g 390
260
Maximum Temperature: Mechanical, °C 220
650
Melting Completion (Liquidus), °C 650
1490
Melting Onset (Solidus), °C 550
1450
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
8.2
Electrical Conductivity: Equal Weight (Specific), % IACS 95
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
11
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 1150
89

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 35
120
Resilience: Unit (Modulus of Resilience), kJ/m3 540 to 770
620
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 35 to 38
26
Strength to Weight: Bending, points 38 to 41
23
Thermal Diffusivity, mm2/s 47
6.9
Thermal Shock Resistance, points 17 to 18
23

Alloy Composition

Aluminum (Al), % 93 to 95.2
0 to 0.020
Boron (B), % 0
0.0010 to 0.0060
Carbon (C), % 0
0.070 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Copper (Cu), % 4.5 to 5.5
0
Iron (Fe), % 0 to 0.1
85.8 to 89.1
Manganese (Mn), % 0.2 to 0.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0
0.040 to 0.090
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.060
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.35
0 to 0.010
Tungsten (W), % 0
1.5 to 2.0
Vanadium (V), % 0.050 to 0.15
0.15 to 0.25
Zirconium (Zr), % 0.1 to 0.25
0 to 0.010
Residuals, % 0 to 0.1
0