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380.0 Aluminum vs. AISI 317L Stainless Steel

380.0 aluminum belongs to the aluminum alloys classification, while AISI 317L 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 380.0 aluminum and the bottom bar is AISI 317L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
180
Elastic (Young's, Tensile) Modulus, GPa 74
200
Elongation at Break, % 3.0
44
Fatigue Strength, MPa 140
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
82
Shear Strength, MPa 190
380
Tensile Strength: Ultimate (UTS), MPa 320
550
Tensile Strength: Yield (Proof), MPa 160
250

Thermal Properties

Latent Heat of Fusion, J/g 510
290
Maximum Temperature: Mechanical, °C 170
1010
Melting Completion (Liquidus), °C 590
1400
Melting Onset (Solidus), °C 540
1380
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 100
14
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 83
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
21
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.5
4.3
Embodied Energy, MJ/kg 140
59
Embodied Water, L/kg 1040
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
200
Resilience: Unit (Modulus of Resilience), kJ/m3 170
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 31
19
Strength to Weight: Bending, points 36
19
Thermal Diffusivity, mm2/s 40
3.8
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 2.0
58 to 68
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.5
11 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 7.5 to 9.5
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.35
0
Zinc (Zn), % 0 to 3.0
0
Residuals, % 0 to 0.5
0