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EN AC-47000 Aluminum vs. EN 1.4859 Stainless Steel

EN AC-47000 aluminum belongs to the aluminum alloys classification, while EN 1.4859 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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-47000 aluminum and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
140
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 1.7
23
Fatigue Strength, MPa 68
140
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Tensile Strength: Ultimate (UTS), MPa 180
490
Tensile Strength: Yield (Proof), MPa 97
210

Thermal Properties

Latent Heat of Fusion, J/g 570
310
Maximum Temperature: Mechanical, °C 170
1050
Melting Completion (Liquidus), °C 590
1410
Melting Onset (Solidus), °C 570
1360
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 130
13
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.6
8.0
Embodied Carbon, kg CO2/kg material 7.7
6.2
Embodied Energy, MJ/kg 140
88
Embodied Water, L/kg 1040
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.5
91
Resilience: Unit (Modulus of Resilience), kJ/m3 65
110
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 54
24
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 27
17
Thermal Diffusivity, mm2/s 55
3.4
Thermal Shock Resistance, points 8.3
11

Alloy Composition

Aluminum (Al), % 82.1 to 89.5
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0 to 0.1
19 to 21
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 0 to 0.8
40.3 to 49
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.050 to 0.55
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.3
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 10.5 to 13.5
0.5 to 1.5
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.55
0
Residuals, % 0 to 0.25
0