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A206.0 Aluminum vs. AISI 384 Stainless Steel

A206.0 aluminum belongs to the aluminum alloys classification, while AISI 384 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 A206.0 aluminum and the bottom bar is AISI 384 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
150
Elastic (Young's, Tensile) Modulus, GPa 70
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Tensile Strength: Ultimate (UTS), MPa 390 to 440
480

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 170
910
Melting Completion (Liquidus), °C 670
1420
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
16
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 90
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
20
Density, g/cm3 3.0
7.9
Embodied Carbon, kg CO2/kg material 8.0
3.7
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1150
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 36 to 41
17
Strength to Weight: Bending, points 39 to 43
17
Thermal Diffusivity, mm2/s 48
4.3
Thermal Shock Resistance, points 17 to 19
11

Alloy Composition

Aluminum (Al), % 93.9 to 95.7
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 4.2 to 5.0
0
Iron (Fe), % 0 to 0.1
60.9 to 68
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.2
0 to 2.0
Nickel (Ni), % 0 to 0.050
17 to 19
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.050
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0