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4145 Aluminum vs. EN 1.4652 Stainless Steel

4145 aluminum belongs to the aluminum alloys classification, while EN 1.4652 stainless steel belongs to the iron alloys. There are 30 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 4145 aluminum and the bottom bar is EN 1.4652 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 2.2
45
Fatigue Strength, MPa 48
450
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
81
Shear Strength, MPa 69
610
Tensile Strength: Ultimate (UTS), MPa 120
880
Tensile Strength: Yield (Proof), MPa 68
490

Thermal Properties

Latent Heat of Fusion, J/g 540
310
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 590
1460
Melting Onset (Solidus), °C 520
1410
Specific Heat Capacity, J/kg-K 880
460
Thermal Conductivity, W/m-K 100
9.8
Thermal Expansion, µm/m-K 21
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 84
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
34
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 7.6
6.4
Embodied Energy, MJ/kg 140
87
Embodied Water, L/kg 1040
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
340
Resilience: Unit (Modulus of Resilience), kJ/m3 31
570
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 12
30
Strength to Weight: Bending, points 19
25
Thermal Diffusivity, mm2/s 42
2.6
Thermal Shock Resistance, points 5.5
20

Alloy Composition


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Aluminum (Al), % 83 to 87.4
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0 to 0.15
23 to 25
Copper (Cu), % 3.3 to 4.7
0.3 to 0.6
Iron (Fe), % 0 to 0.8
38.3 to 46.3
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.15
2.0 to 4.0
Molybdenum (Mo), % 0
7.0 to 8.0
Nickel (Ni), % 0
21 to 23
Nitrogen (N), % 0
0.45 to 0.55
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 9.3 to 10.7
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0