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3005 Aluminum vs. AISI 446 Stainless Steel

3005 aluminum belongs to the aluminum alloys classification, while AISI 446 stainless steel belongs to the iron alloys. There are 31 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 3005 aluminum and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 33 to 73
190
Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 1.1 to 16
23
Fatigue Strength, MPa 53 to 100
200
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
79
Shear Strength, MPa 84 to 150
360
Tensile Strength: Ultimate (UTS), MPa 140 to 270
570
Tensile Strength: Yield (Proof), MPa 51 to 240
300

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 180
1180
Melting Completion (Liquidus), °C 660
1510
Melting Onset (Solidus), °C 640
1430
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 160
17
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.8
7.7
Embodied Carbon, kg CO2/kg material 8.2
2.4
Embodied Energy, MJ/kg 150
35
Embodied Water, L/kg 1180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 18
110
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 390
230
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
26
Strength to Weight: Axial, points 14 to 27
21
Strength to Weight: Bending, points 21 to 33
20
Thermal Diffusivity, mm2/s 64
4.6
Thermal Shock Resistance, points 6.0 to 12
19

Alloy Composition

Aluminum (Al), % 95.7 to 98.8
0
Carbon (C), % 0
0 to 0.2
Chromium (Cr), % 0 to 0.1
23 to 27
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.7
69.2 to 77
Magnesium (Mg), % 0.2 to 0.6
0
Manganese (Mn), % 1.0 to 1.5
0 to 1.5
Nickel (Ni), % 0
0 to 0.75
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0