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EN AC-45000 Aluminum vs. EN 1.4658 Stainless Steel

EN AC-45000 aluminum belongs to the aluminum alloys classification, while EN 1.4658 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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-45000 aluminum and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77
260
Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 1.1
28
Fatigue Strength, MPa 75
530
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
81
Tensile Strength: Ultimate (UTS), MPa 180
900
Tensile Strength: Yield (Proof), MPa 110
730

Thermal Properties

Latent Heat of Fusion, J/g 470
300
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 520
1400
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
16
Thermal Expansion, µm/m-K 22
13

Otherwise Unclassified Properties

Base Metal Price, % relative 11
25
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.7
4.5
Embodied Energy, MJ/kg 140
61
Embodied Water, L/kg 1070
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
240
Resilience: Unit (Modulus of Resilience), kJ/m3 80
1280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 17
32
Strength to Weight: Bending, points 24
26
Thermal Diffusivity, mm2/s 47
4.3
Thermal Shock Resistance, points 8.0
24

Alloy Composition

Aluminum (Al), % 82.2 to 91.8
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.15
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 3.0 to 5.0
0 to 1.0
Iron (Fe), % 0 to 1.0
50.9 to 63.7
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0 to 0.55
0
Manganese (Mn), % 0.2 to 0.65
0 to 1.5
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.45
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 5.0 to 7.0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 2.0
0
Residuals, % 0 to 0.35
0