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319.0 Aluminum vs. AISI 415 Stainless Steel

319.0 aluminum belongs to the aluminum alloys classification, while AISI 415 stainless steel belongs to the iron 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 319.0 aluminum and the bottom bar is AISI 415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 78 to 84
260
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.8 to 2.0
17
Fatigue Strength, MPa 76 to 80
430
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
76
Shear Strength, MPa 170 to 210
550
Tensile Strength: Ultimate (UTS), MPa 190 to 240
900
Tensile Strength: Yield (Proof), MPa 110 to 180
700

Thermal Properties

Latent Heat of Fusion, J/g 480
270
Maximum Temperature: Mechanical, °C 170
780
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 110
24
Thermal Expansion, µm/m-K 22
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 84
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.7
2.5
Embodied Energy, MJ/kg 140
35
Embodied Water, L/kg 1080
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3 to 3.9
140
Resilience: Unit (Modulus of Resilience), kJ/m3 88 to 220
1250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 18 to 24
32
Strength to Weight: Bending, points 25 to 30
26
Thermal Diffusivity, mm2/s 44
6.4
Thermal Shock Resistance, points 8.6 to 11
33

Alloy Composition

Aluminum (Al), % 85.8 to 91.5
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
11.5 to 14
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.0
77.8 to 84
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0.5 to 1.0
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 0 to 0.35
3.5 to 5.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 5.5 to 6.5
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0