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359.0 Aluminum vs. AISI 309Cb Stainless Steel

359.0 aluminum belongs to the aluminum alloys classification, while AISI 309Cb stainless steel belongs to the iron alloys. There are 31 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 359.0 aluminum and the bottom bar is AISI 309Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90 to 100
190
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 3.8 to 4.9
39
Fatigue Strength, MPa 100
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
78
Shear Strength, MPa 220 to 230
390
Tensile Strength: Ultimate (UTS), MPa 340 to 350
580
Tensile Strength: Yield (Proof), MPa 250 to 280
230

Thermal Properties

Latent Heat of Fusion, J/g 530
300
Maximum Temperature: Mechanical, °C 170
1090
Melting Completion (Liquidus), °C 600
1420
Melting Onset (Solidus), °C 570
1380
Specific Heat Capacity, J/kg-K 910
480
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 21
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 8.0
4.1
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1090
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 15
180
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 540
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 54
25
Strength to Weight: Axial, points 37 to 38
20
Strength to Weight: Bending, points 42 to 43
20
Thermal Diffusivity, mm2/s 59
4.0
Thermal Shock Resistance, points 16 to 17
13

Alloy Composition

Aluminum (Al), % 88.9 to 91
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.2
56 to 66
Magnesium (Mg), % 0.5 to 0.7
0
Manganese (Mn), % 0 to 0.1
0 to 2.0
Nickel (Ni), % 0
12 to 16
Niobium (Nb), % 0
0 to 1.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 8.5 to 9.5
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0