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319.0 Aluminum vs. S35115 Stainless Steel

319.0 aluminum belongs to the aluminum alloys classification, while S35115 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 319.0 aluminum and the bottom bar is S35115 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 78 to 84
210
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.8 to 2.0
46
Fatigue Strength, MPa 76 to 80
280
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Shear Strength, MPa 170 to 210
470
Tensile Strength: Ultimate (UTS), MPa 190 to 240
670
Tensile Strength: Yield (Proof), MPa 110 to 180
310

Thermal Properties

Latent Heat of Fusion, J/g 480
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 600
1420
Melting Onset (Solidus), °C 540
1370
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 110
15
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 84
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
26
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.7
4.8
Embodied Energy, MJ/kg 140
67
Embodied Water, L/kg 1080
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3 to 3.9
250
Resilience: Unit (Modulus of Resilience), kJ/m3 88 to 220
240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 48
25
Strength to Weight: Axial, points 18 to 24
24
Strength to Weight: Bending, points 25 to 30
22
Thermal Diffusivity, mm2/s 44
3.9
Thermal Shock Resistance, points 8.6 to 11
15

Alloy Composition

Aluminum (Al), % 85.8 to 91.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 0 to 1.0
47.6 to 55.8
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.5
Nickel (Ni), % 0 to 0.35
19 to 22
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 5.5 to 6.5
0.5 to 1.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0