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S64512 Stainless Steel vs. 204.0 Aluminum

S64512 stainless steel belongs to the iron alloys classification, while 204.0 aluminum belongs to the aluminum alloys. There are 30 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 S64512 stainless steel and the bottom bar is 204.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
90 to 120
Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 17
5.7 to 7.8
Fatigue Strength, MPa 540
63 to 77
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 1140
230 to 340
Tensile Strength: Yield (Proof), MPa 890
180 to 220

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Maximum Temperature: Mechanical, °C 750
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
580
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 28
120
Thermal Expansion, µm/m-K 10
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
29 to 34
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
87 to 100

Otherwise Unclassified Properties

Base Metal Price, % relative 10
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 3.3
8.0
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 110
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
12 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
220 to 350
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 40
21 to 31
Strength to Weight: Bending, points 31
28 to 36
Thermal Diffusivity, mm2/s 7.5
46
Thermal Shock Resistance, points 42
12 to 18

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.5
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
4.2 to 5.0
Iron (Fe), % 80.6 to 84.7
0 to 0.35
Magnesium (Mg), % 0
0.15 to 0.35
Manganese (Mn), % 0.5 to 0.9
0 to 0.1
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
0 to 0.050
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.35
0 to 0.2
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 0
0.15 to 0.3
Vanadium (V), % 0.25 to 0.4
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15