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AISI 316LN Stainless Steel vs. 5252 Aluminum

AISI 316LN stainless steel belongs to the iron alloys classification, while 5252 aluminum belongs to the aluminum 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 AISI 316LN stainless steel and the bottom bar is 5252 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
68 to 75
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 42
4.5 to 11
Fatigue Strength, MPa 200
100 to 110
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 82
25
Shear Strength, MPa 410
140 to 160
Tensile Strength: Ultimate (UTS), MPa 590
230 to 290
Tensile Strength: Yield (Proof), MPa 230
170 to 240

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Maximum Temperature: Mechanical, °C 940
180
Melting Completion (Liquidus), °C 1450
650
Melting Onset (Solidus), °C 1380
610
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 15
140
Thermal Expansion, µm/m-K 17
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
34
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
120

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
8.7
Embodied Energy, MJ/kg 53
160
Embodied Water, L/kg 150
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 130
210 to 430
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 21
23 to 30
Strength to Weight: Bending, points 20
31 to 36
Thermal Diffusivity, mm2/s 4.1
57
Thermal Shock Resistance, points 13
10 to 13

Alloy Composition

Aluminum (Al), % 0
96.6 to 97.8
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 62 to 71.9
0 to 0.1
Magnesium (Mg), % 0
2.2 to 2.8
Manganese (Mn), % 0 to 2.0
0 to 0.1
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
0 to 0.080
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.1