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S40930 Stainless Steel vs. 364.0 Aluminum

S40930 stainless steel belongs to the iron alloys classification, while 364.0 aluminum belongs to the aluminum alloys. There are 30 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 S40930 stainless steel and the bottom bar is 364.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 23
7.5
Fatigue Strength, MPa 130
120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
27
Shear Strength, MPa 270
200
Tensile Strength: Ultimate (UTS), MPa 430
300
Tensile Strength: Yield (Proof), MPa 190
160

Thermal Properties

Latent Heat of Fusion, J/g 270
520
Maximum Temperature: Mechanical, °C 710
190
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1410
560
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 25
120
Thermal Expansion, µm/m-K 10
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
30
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
11
Density, g/cm3 7.8
2.6
Embodied Carbon, kg CO2/kg material 2.3
8.0
Embodied Energy, MJ/kg 32
150
Embodied Water, L/kg 94
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
19
Resilience: Unit (Modulus of Resilience), kJ/m3 94
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 16
31
Strength to Weight: Bending, points 16
38
Thermal Diffusivity, mm2/s 6.7
51
Thermal Shock Resistance, points 16
14

Alloy Composition

Aluminum (Al), % 0
87.2 to 92
Beryllium (Be), % 0
0.020 to 0.040
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 10.5 to 11.7
0.25 to 0.5
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 84.7 to 89.4
0 to 1.5
Magnesium (Mg), % 0
0.2 to 0.4
Manganese (Mn), % 0 to 1.0
0 to 0.1
Nickel (Ni), % 0 to 0.5
0 to 0.15
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
7.5 to 9.5
Sulfur (S), % 0 to 0.020
0
Tin (Sn), % 0
0 to 0.15
Titanium (Ti), % 0.050 to 0.2
0
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15