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AISI 316LN Stainless Steel vs. B443.0 Aluminum

AISI 316LN stainless steel belongs to the iron alloys classification, while B443.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, 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 AISI 316LN stainless steel and the bottom bar is B443.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
43
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 42
4.9
Fatigue Strength, MPa 200
55
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 82
26
Shear Strength, MPa 410
110
Tensile Strength: Ultimate (UTS), MPa 590
150
Tensile Strength: Yield (Proof), MPa 230
50

Thermal Properties

Latent Heat of Fusion, J/g 290
470
Maximum Temperature: Mechanical, °C 940
170
Melting Completion (Liquidus), °C 1450
620
Melting Onset (Solidus), °C 1380
600
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 15
150
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
38
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
130

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.5
Density, g/cm3 7.9
2.7
Embodied Carbon, kg CO2/kg material 3.8
8.0
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 150
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 130
18
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 21
15
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 4.1
61
Thermal Shock Resistance, points 13
6.8

Alloy Composition

Aluminum (Al), % 0
91.9 to 95.5
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 62 to 71.9
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0 to 2.0
0 to 0.35
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0
Nitrogen (N), % 0.1 to 0.16
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
4.5 to 6.0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15