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EN AC-71100 Aluminum vs. EN 1.4823 Stainless Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while EN 1.4823 stainless steel belongs to the iron alloys. There are 27 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-71100 aluminum and the bottom bar is EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1
3.4
Fatigue Strength, MPa 150
130
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 27
79
Tensile Strength: Ultimate (UTS), MPa 260
620
Tensile Strength: Yield (Proof), MPa 230
290

Thermal Properties

Latent Heat of Fusion, J/g 490
320
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 580
1400
Melting Onset (Solidus), °C 520
1360
Specific Heat Capacity, J/kg-K 860
490
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 97
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
16
Density, g/cm3 2.9
7.6
Embodied Carbon, kg CO2/kg material 7.4
3.0
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 1010
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
17
Resilience: Unit (Modulus of Resilience), kJ/m3 360
200
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 47
26
Strength to Weight: Axial, points 25
23
Strength to Weight: Bending, points 31
21
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
60.9 to 70.7
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
3.0 to 6.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 7.5 to 9.5
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0