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A390.0 Aluminum vs. EN 1.4823 Stainless Steel

A390.0 aluminum belongs to the aluminum alloys classification, while EN 1.4823 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 A390.0 aluminum and the bottom bar is EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.87 to 0.91
3.4
Fatigue Strength, MPa 70 to 100
130
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 28
79
Tensile Strength: Ultimate (UTS), MPa 190 to 290
620
Tensile Strength: Yield (Proof), MPa 190 to 290
290

Thermal Properties

Latent Heat of Fusion, J/g 640
320
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 580
1400
Melting Onset (Solidus), °C 480
1360
Specific Heat Capacity, J/kg-K 880
490
Thermal Conductivity, W/m-K 130
17
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 67
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
16
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 7.3
3.0
Embodied Energy, MJ/kg 140
43
Embodied Water, L/kg 950
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.6 to 2.6
17
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 580
200
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 52
26
Strength to Weight: Axial, points 19 to 30
23
Strength to Weight: Bending, points 27 to 36
21
Thermal Diffusivity, mm2/s 56
4.5
Thermal Shock Resistance, points 9.0 to 14
17

Alloy Composition

Aluminum (Al), % 75.3 to 79.6
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 0.5
60.9 to 70.7
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
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), % 16 to 18
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0