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380.0 Aluminum vs. EN 1.4028 Stainless Steel

380.0 aluminum belongs to the aluminum alloys classification, while EN 1.4028 stainless steel belongs to the iron alloys. There are 30 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 380.0 aluminum and the bottom bar is EN 1.4028 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 3.0
11 to 17
Fatigue Strength, MPa 140
230 to 400
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Shear Strength, MPa 190
410 to 550
Tensile Strength: Ultimate (UTS), MPa 320
660 to 930
Tensile Strength: Yield (Proof), MPa 160
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 510
270
Maximum Temperature: Mechanical, °C 170
760
Melting Completion (Liquidus), °C 590
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 100
30
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 83
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.0
Density, g/cm3 2.9
7.7
Embodied Carbon, kg CO2/kg material 7.5
1.9
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 1040
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
94 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 170
380 to 1360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 31
24 to 33
Strength to Weight: Bending, points 36
22 to 27
Thermal Diffusivity, mm2/s 40
8.1
Thermal Shock Resistance, points 14
23 to 32

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0
Carbon (C), % 0
0.26 to 0.35
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 2.0
83.1 to 87.7
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.5
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 7.5 to 9.5
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0