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EN AC-45400 Aluminum vs. EN 1.4805 Stainless Steel

EN AC-45400 aluminum belongs to the aluminum alloys classification, while EN 1.4805 stainless steel belongs to the iron alloys. There are 28 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 EN AC-45400 aluminum and the bottom bar is EN 1.4805 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 86
140
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 6.7
9.0
Fatigue Strength, MPa 55
130
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 260
490
Tensile Strength: Yield (Proof), MPa 130
250

Thermal Properties

Latent Heat of Fusion, J/g 470
310
Maximum Temperature: Mechanical, °C 170
1000
Melting Completion (Liquidus), °C 630
1390
Melting Onset (Solidus), °C 560
1350
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 140
14
Thermal Expansion, µm/m-K 22
16

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 7.8
4.7
Embodied Energy, MJ/kg 150
66
Embodied Water, L/kg 1100
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14
37
Resilience: Unit (Modulus of Resilience), kJ/m3 110
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 32
18
Thermal Diffusivity, mm2/s 54
3.7
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 88.4 to 92.9
0
Carbon (C), % 0
0.2 to 0.5
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 2.6 to 3.6
0
Iron (Fe), % 0 to 0.6
44.9 to 56.8
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.55
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.1
23 to 27
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 4.5 to 6.0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0