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390.0 Aluminum vs. S35315 Stainless Steel

390.0 aluminum belongs to the aluminum alloys classification, while S35315 stainless steel belongs to the iron 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 390.0 aluminum and the bottom bar is S35315 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
190
Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 1.0
46
Fatigue Strength, MPa 76 to 110
280
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
78
Tensile Strength: Ultimate (UTS), MPa 280 to 300
740
Tensile Strength: Yield (Proof), MPa 240 to 270
300

Thermal Properties

Latent Heat of Fusion, J/g 640
330
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 650
1370
Melting Onset (Solidus), °C 560
1330
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
12
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
34
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 7.3
5.7
Embodied Energy, MJ/kg 130
81
Embodied Water, L/kg 950
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
270
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
230
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 28 to 30
26
Strength to Weight: Bending, points 35 to 36
23
Thermal Diffusivity, mm2/s 56
3.1
Thermal Shock Resistance, points 14 to 15
17

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
0
Carbon (C), % 0
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.1
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 0 to 1.3
33.6 to 40.6
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Nickel (Ni), % 0
34 to 36
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 16 to 18
1.2 to 2.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.2
0