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392.0 Aluminum vs. AISI 303 Stainless Steel

392.0 aluminum belongs to the aluminum alloys classification, while AISI 303 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 392.0 aluminum and the bottom bar is AISI 303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.86
40 to 51
Fatigue Strength, MPa 190
230 to 360
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Tensile Strength: Ultimate (UTS), MPa 290
600 to 690
Tensile Strength: Yield (Proof), MPa 270
230 to 420

Thermal Properties

Latent Heat of Fusion, J/g 670
290
Maximum Temperature: Mechanical, °C 170
930
Melting Completion (Liquidus), °C 670
1450
Melting Onset (Solidus), °C 580
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 19
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.5
3.0
Embodied Energy, MJ/kg 140
42
Embodied Water, L/kg 950
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
240
Resilience: Unit (Modulus of Resilience), kJ/m3 490
140 to 440
Stiffness to Weight: Axial, points 17
14
Stiffness to Weight: Bending, points 56
25
Strength to Weight: Axial, points 32
21 to 25
Strength to Weight: Bending, points 39
20 to 22
Thermal Diffusivity, mm2/s 60
4.4
Thermal Shock Resistance, points 15
13 to 15

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 0 to 1.5
67.3 to 74.9
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.6
0 to 2.0
Nickel (Ni), % 0 to 0.5
8.0 to 10
Phosphorus (P), % 0
0 to 0.2
Silicon (Si), % 18 to 20
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Tin (Sn), % 0 to 0.3
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0