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EN AC-45000 Aluminum vs. EN 1.4980 Stainless Steel

EN AC-45000 aluminum belongs to the aluminum alloys classification, while EN 1.4980 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-45000 aluminum and the bottom bar is EN 1.4980 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
17
Fatigue Strength, MPa 75
410
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
75
Tensile Strength: Ultimate (UTS), MPa 180
1030
Tensile Strength: Yield (Proof), MPa 110
680

Thermal Properties

Latent Heat of Fusion, J/g 470
300
Maximum Temperature: Mechanical, °C 180
920
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 520
1380
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
13
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 81
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
26
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 7.7
6.0
Embodied Energy, MJ/kg 140
87
Embodied Water, L/kg 1070
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
150
Resilience: Unit (Modulus of Resilience), kJ/m3 80
1180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 24
28
Thermal Diffusivity, mm2/s 47
3.5
Thermal Shock Resistance, points 8.0
22

Alloy Composition

Aluminum (Al), % 82.2 to 91.8
0 to 0.35
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0
0.030 to 0.080
Chromium (Cr), % 0 to 0.15
13.5 to 16
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 0 to 1.0
49.2 to 58.5
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0 to 0.55
0
Manganese (Mn), % 0.2 to 0.65
1.0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0 to 0.45
24 to 27
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 5.0 to 7.0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5
Zinc (Zn), % 0 to 2.0
0
Residuals, % 0 to 0.35
0