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392.0 Aluminum vs. S44700 Stainless Steel

392.0 aluminum belongs to the aluminum alloys classification, while S44700 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
210
Elongation at Break, % 0.86
23
Fatigue Strength, MPa 190
300
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 28
82
Tensile Strength: Ultimate (UTS), MPa 290
600
Tensile Strength: Yield (Proof), MPa 270
450

Thermal Properties

Latent Heat of Fusion, J/g 670
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 670
1460
Melting Onset (Solidus), °C 580
1410
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 19
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
18
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.5
3.6
Embodied Energy, MJ/kg 140
49
Embodied Water, L/kg 950
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
120
Resilience: Unit (Modulus of Resilience), kJ/m3 490
480
Stiffness to Weight: Axial, points 17
15
Stiffness to Weight: Bending, points 56
25
Strength to Weight: Axial, points 32
21
Strength to Weight: Bending, points 39
20
Thermal Shock Resistance, points 15
19

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0.4 to 0.8
0 to 0.15
Iron (Fe), % 0 to 1.5
64.9 to 68.5
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.6
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0 to 0.5
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 18 to 20
0 to 0.2
Sulfur (S), % 0
0 to 0.020
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