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383.0 Aluminum vs. S41050 Stainless Steel

383.0 aluminum belongs to the aluminum alloys classification, while S41050 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, 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 S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
160
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 3.5
25
Fatigue Strength, MPa 150
160
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
76
Tensile Strength: Ultimate (UTS), MPa 280
470
Tensile Strength: Yield (Proof), MPa 150
230

Thermal Properties

Latent Heat of Fusion, J/g 540
270
Maximum Temperature: Mechanical, °C 170
720
Melting Completion (Liquidus), °C 580
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 96
27
Thermal Expansion, µm/m-K 21
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 74
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.0
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.5
1.9
Embodied Energy, MJ/kg 140
27
Embodied Water, L/kg 1030
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.2
98
Resilience: Unit (Modulus of Resilience), kJ/m3 150
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 28
17
Strength to Weight: Bending, points 34
17
Thermal Diffusivity, mm2/s 39
7.2
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 79.7 to 88.5
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 2.0 to 3.0
0
Iron (Fe), % 0 to 1.3
84.2 to 88.9
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 0.3
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 9.5 to 11.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0