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EN 1.4110 Stainless Steel vs. 4045 Aluminum

EN 1.4110 stainless steel belongs to the iron alloys classification, while 4045 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4110 stainless steel and the bottom bar is 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 11 to 14
2.3
Fatigue Strength, MPa 250 to 730
45
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Shear Strength, MPa 470 to 1030
69
Tensile Strength: Ultimate (UTS), MPa 770 to 1720
120
Tensile Strength: Yield (Proof), MPa 430 to 1330
64

Thermal Properties

Latent Heat of Fusion, J/g 280
540
Maximum Temperature: Mechanical, °C 790
160
Melting Completion (Liquidus), °C 1440
600
Melting Onset (Solidus), °C 1400
580
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 30
170
Thermal Expansion, µm/m-K 11
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
45
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
160

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 2.3
7.8
Embodied Energy, MJ/kg 33
150
Embodied Water, L/kg 110
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 180
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 4550
29
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
54
Strength to Weight: Axial, points 28 to 62
13
Strength to Weight: Bending, points 24 to 41
21
Thermal Diffusivity, mm2/s 8.1
74
Thermal Shock Resistance, points 27 to 60
5.7

Alloy Composition

Aluminum (Al), % 0
87.4 to 91
Carbon (C), % 0.48 to 0.6
0
Chromium (Cr), % 13 to 15
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 81.4 to 86
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0 to 0.050
Molybdenum (Mo), % 0.5 to 0.8
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
9.0 to 11
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0 to 0.15
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15