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6005A Aluminum vs. AISI 309Cb Stainless Steel

6005A aluminum belongs to the aluminum alloys classification, while AISI 309Cb stainless steel belongs to the iron alloys. There are 30 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 6005A aluminum and the bottom bar is AISI 309Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 8.6 to 17
39
Fatigue Strength, MPa 55 to 110
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Shear Strength, MPa 120 to 180
390
Tensile Strength: Ultimate (UTS), MPa 190 to 300
580
Tensile Strength: Yield (Proof), MPa 100 to 270
230

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 170
1090
Melting Completion (Liquidus), °C 650
1420
Melting Onset (Solidus), °C 600
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 180 to 190
15
Thermal Expansion, µm/m-K 23
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47 to 50
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 150 to 170
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
4.1
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1180
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
180
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 530
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 20 to 30
20
Strength to Weight: Bending, points 27 to 36
20
Thermal Diffusivity, mm2/s 72 to 79
4.0
Thermal Shock Resistance, points 8.6 to 13
13

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.3
22 to 24
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.35
56 to 66
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.5
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), % 0.5 to 0.9
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0