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S15500 Stainless Steel vs. 319.0 Aluminum

S15500 stainless steel belongs to the iron alloys classification, while 319.0 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (6, 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 S15500 stainless steel and the bottom bar is 319.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290 to 430
78 to 84
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 6.8 to 16
1.8 to 2.0
Fatigue Strength, MPa 350 to 650
76 to 80
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
27
Shear Strength, MPa 540 to 870
170 to 210
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
190 to 240
Tensile Strength: Yield (Proof), MPa 590 to 1310
110 to 180

Thermal Properties

Latent Heat of Fusion, J/g 280
480
Maximum Temperature: Mechanical, °C 820
170
Melting Completion (Liquidus), °C 1430
600
Melting Onset (Solidus), °C 1380
540
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 17
110
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
84

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 2.7
7.7
Embodied Energy, MJ/kg 39
140
Embodied Water, L/kg 130
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
3.3 to 3.9
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
88 to 220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
48
Strength to Weight: Axial, points 32 to 53
18 to 24
Strength to Weight: Bending, points 26 to 37
25 to 30
Thermal Diffusivity, mm2/s 4.6
44
Thermal Shock Resistance, points 30 to 50
8.6 to 11

Alloy Composition


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Aluminum (Al), % 0
85.8 to 91.5
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 4.5
3.0 to 4.0
Iron (Fe), % 71.9 to 79.9
0 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0 to 1.0
0 to 0.5
Nickel (Ni), % 3.5 to 5.5
0 to 0.35
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
5.5 to 6.5
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5