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380.0 Aluminum vs. S45500 Stainless Steel

380.0 aluminum belongs to the aluminum alloys classification, while S45500 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, 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 S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
280 to 500
Elastic (Young's, Tensile) Modulus, GPa 74
190
Elongation at Break, % 3.0
3.4 to 11
Fatigue Strength, MPa 140
570 to 890
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
75
Shear Strength, MPa 190
790 to 1090
Tensile Strength: Ultimate (UTS), MPa 320
1370 to 1850
Tensile Strength: Yield (Proof), MPa 160
1240 to 1700

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
470
Thermal Expansion, µm/m-K 22
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
17
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.5
3.8
Embodied Energy, MJ/kg 140
57
Embodied Water, L/kg 1040
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
45 to 190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
24
Strength to Weight: Axial, points 31
48 to 65
Strength to Weight: Bending, points 36
35 to 42
Thermal Shock Resistance, points 14
48 to 64

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 3.0 to 4.0
1.5 to 2.5
Iron (Fe), % 0 to 2.0
71.5 to 79.2
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.5
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 7.5 to 9.5
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
0.8 to 1.4
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0