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383.0 Aluminum vs. S40930 Stainless Steel

383.0 aluminum belongs to the aluminum alloys classification, while S40930 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 S40930 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
23
Fatigue Strength, MPa 150
130
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
75
Tensile Strength: Ultimate (UTS), MPa 280
430
Tensile Strength: Yield (Proof), MPa 150
190

Thermal Properties

Latent Heat of Fusion, J/g 540
270
Maximum Temperature: Mechanical, °C 170
710
Melting Completion (Liquidus), °C 580
1450
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 96
25
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
8.5
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 7.5
2.3
Embodied Energy, MJ/kg 140
32
Embodied Water, L/kg 1030
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.2
80
Resilience: Unit (Modulus of Resilience), kJ/m3 150
94
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 28
16
Strength to Weight: Bending, points 34
16
Thermal Diffusivity, mm2/s 39
6.7
Thermal Shock Resistance, points 13
16

Alloy Composition

Aluminum (Al), % 79.7 to 88.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
Copper (Cu), % 2.0 to 3.0
0
Iron (Fe), % 0 to 1.3
84.7 to 89.4
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 0.3
0 to 0.5
Niobium (Nb), % 0
0.080 to 0.75
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 9.5 to 11.5
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0
0.050 to 0.2
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0