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383.0 Aluminum vs. EN 1.4439 Stainless Steel

383.0 aluminum belongs to the aluminum alloys classification, while EN 1.4439 stainless steel belongs to the iron alloys. There are 31 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 383.0 aluminum and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
220
Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 3.5
40
Fatigue Strength, MPa 150
270
Impact Strength: V-Notched Charpy, J 4.0
90
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
79
Tensile Strength: Ultimate (UTS), MPa 280
680
Tensile Strength: Yield (Proof), MPa 150
310

Thermal Properties

Latent Heat of Fusion, J/g 540
290
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 580
1460
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 96
14
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 74
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
22
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 7.5
4.5
Embodied Energy, MJ/kg 140
61
Embodied Water, L/kg 1030
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.2
220
Resilience: Unit (Modulus of Resilience), kJ/m3 150
240
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 28
24
Strength to Weight: Bending, points 34
22
Thermal Diffusivity, mm2/s 39
3.8
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 79.7 to 88.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 2.0 to 3.0
0
Iron (Fe), % 0 to 1.3
58.7 to 66.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.3
12.5 to 14.5
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 9.5 to 11.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0