MakeItFrom.com
Menu (ESC)

S64512 Stainless Steel vs. 8021 Aluminum

S64512 stainless steel belongs to the iron alloys classification, while 8021 aluminum belongs to the aluminum alloys. There are 29 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 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 17
2.3
Fatigue Strength, MPa 540
61
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 1140
160
Tensile Strength: Yield (Proof), MPa 890
130

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Maximum Temperature: Mechanical, °C 750
170
Melting Completion (Liquidus), °C 1460
650
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 28
220
Thermal Expansion, µm/m-K 10
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
56
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
180

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.0
Density, g/cm3 7.8
2.8
Embodied Carbon, kg CO2/kg material 3.3
8.1
Embodied Energy, MJ/kg 47
150
Embodied Water, L/kg 110
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 40
16
Strength to Weight: Bending, points 31
23
Thermal Diffusivity, mm2/s 7.5
88
Thermal Shock Resistance, points 42
7.0

Alloy Composition

Aluminum (Al), % 0
98 to 98.8
Carbon (C), % 0.080 to 0.15
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 80.6 to 84.7
1.2 to 1.7
Manganese (Mn), % 0.5 to 0.9
0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 2.0 to 3.0
0
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.35
0 to 0.15
Sulfur (S), % 0 to 0.025
0
Vanadium (V), % 0.25 to 0.4
0
Residuals, % 0
0 to 0.15