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AISI 317L Stainless Steel vs. EN AC-42200 Aluminum

AISI 317L stainless steel belongs to the iron alloys classification, while EN AC-42200 aluminum belongs to the aluminum 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 AISI 317L stainless steel and the bottom bar is EN AC-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
89 to 100
Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 44
3.0 to 6.7
Fatigue Strength, MPa 220
86 to 90
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 82
26
Tensile Strength: Ultimate (UTS), MPa 550
320
Tensile Strength: Yield (Proof), MPa 250
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 290
500
Maximum Temperature: Mechanical, °C 1010
170
Melting Completion (Liquidus), °C 1400
610
Melting Onset (Solidus), °C 1380
600
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 14
150
Thermal Expansion, µm/m-K 17
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
40
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
140

Otherwise Unclassified Properties

Base Metal Price, % relative 21
9.5
Density, g/cm3 7.9
2.6
Embodied Carbon, kg CO2/kg material 4.3
8.0
Embodied Energy, MJ/kg 59
150
Embodied Water, L/kg 160
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
9.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 150
410 to 490
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
53
Strength to Weight: Axial, points 19
34 to 35
Strength to Weight: Bending, points 19
40 to 41
Thermal Diffusivity, mm2/s 3.8
66
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0
91 to 93.1
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 58 to 68
0 to 0.19
Magnesium (Mg), % 0
0.45 to 0.7
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 11 to 15
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
6.5 to 7.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1