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443.0 Aluminum vs. AISI 317LN Stainless Steel

443.0 aluminum belongs to the aluminum alloys classification, while AISI 317LN 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 443.0 aluminum and the bottom bar is AISI 317LN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 41
190
Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 5.6
45
Fatigue Strength, MPa 55
250
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Shear Strength, MPa 96
430
Tensile Strength: Ultimate (UTS), MPa 150
620
Tensile Strength: Yield (Proof), MPa 65
270

Thermal Properties

Latent Heat of Fusion, J/g 470
290
Maximum Temperature: Mechanical, °C 180
1010
Melting Completion (Liquidus), °C 630
1450
Melting Onset (Solidus), °C 580
1400
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
14
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
21
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.0
4.3
Embodied Energy, MJ/kg 150
59
Embodied Water, L/kg 1120
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
220
Resilience: Unit (Modulus of Resilience), kJ/m3 30
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 52
25
Strength to Weight: Axial, points 16
22
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 61
3.9
Thermal Shock Resistance, points 6.9
14

Alloy Composition

Aluminum (Al), % 90.7 to 95.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.25
18 to 20
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 0 to 0.8
57.9 to 67.9
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
11 to 15
Nitrogen (N), % 0
0.1 to 0.22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 4.5 to 6.0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.35
0