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EN AC-46300 Aluminum vs. EN 1.4418 Stainless Steel

EN AC-46300 aluminum belongs to the aluminum alloys classification, while EN 1.4418 stainless steel belongs to the iron alloys. There are 29 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 AC-46300 aluminum and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.1
16 to 20
Fatigue Strength, MPa 79
350 to 480
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 200
860 to 1000
Tensile Strength: Yield (Proof), MPa 110
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 490
280
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 530
1400
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 120
15
Thermal Expansion, µm/m-K 22
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 84
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.7
2.8
Embodied Energy, MJ/kg 140
39
Embodied Water, L/kg 1060
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.9
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 89
730 to 1590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 20
31 to 36
Strength to Weight: Bending, points 27
26 to 28
Thermal Diffusivity, mm2/s 47
4.0
Thermal Shock Resistance, points 9.1
31 to 36

Alloy Composition

Aluminum (Al), % 84 to 90
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 0.8
73.2 to 80.2
Lead (Pb), % 0 to 0.15
0
Magnesium (Mg), % 0.3 to 0.6
0
Manganese (Mn), % 0.2 to 0.65
0 to 1.5
Molybdenum (Mo), % 0
0.8 to 1.5
Nickel (Ni), % 0 to 0.3
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 6.5 to 8.0
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.65
0
Residuals, % 0 to 0.55
0