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392.0 Aluminum vs. AISI 309H Stainless Steel

392.0 aluminum belongs to the aluminum alloys classification, while AISI 309H stainless steel belongs to the iron alloys. There are 29 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 392.0 aluminum and the bottom bar is AISI 309H stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
200
Elongation at Break, % 0.86
40
Fatigue Strength, MPa 190
200
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 28
78
Tensile Strength: Ultimate (UTS), MPa 290
580
Tensile Strength: Yield (Proof), MPa 270
230

Thermal Properties

Latent Heat of Fusion, J/g 670
290
Maximum Temperature: Mechanical, °C 170
1080
Melting Completion (Liquidus), °C 670
1420
Melting Onset (Solidus), °C 580
1370
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 19
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
19
Density, g/cm3 2.5
7.8
Embodied Carbon, kg CO2/kg material 7.5
3.6
Embodied Energy, MJ/kg 140
51
Embodied Water, L/kg 950
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
190
Resilience: Unit (Modulus of Resilience), kJ/m3 490
130
Stiffness to Weight: Axial, points 17
14
Stiffness to Weight: Bending, points 56
25
Strength to Weight: Axial, points 32
21
Strength to Weight: Bending, points 39
20
Thermal Diffusivity, mm2/s 60
4.0
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0
Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 0 to 1.5
58.1 to 66
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
12 to 15
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 18 to 20
0 to 0.75
Sulfur (S), % 0
0 to 0.030
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