SAE-AISI T8 Steel vs. S66286 Stainless Steel
Both SAE-AISI T8 steel and S66286 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI T8 steel and the bottom bar is S66286 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
190 |
Poisson's Ratio | 0.29 | |
0.29 |
Shear Modulus, GPa | 78 | |
75 |
Tensile Strength: Ultimate (UTS), MPa | 780 to 2140 | |
620 to 1020 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
300 |
Melting Completion (Liquidus), °C | 1730 | |
1430 |
Melting Onset (Solidus), °C | 1670 | |
1370 |
Specific Heat Capacity, J/kg-K | 420 | |
470 |
Thermal Conductivity, W/m-K | 18 | |
15 |
Thermal Expansion, µm/m-K | 12 | |
17 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 45 | |
26 |
Density, g/cm3 | 9.0 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 10 | |
6.0 |
Embodied Energy, MJ/kg | 160 | |
87 |
Embodied Water, L/kg | 120 | |
170 |
Common Calculations
PREN (Pitting Resistance) | 30 | |
19 |
Stiffness to Weight: Axial, points | 12 | |
14 |
Stiffness to Weight: Bending, points | 22 | |
24 |
Strength to Weight: Axial, points | 24 to 66 | |
22 to 36 |
Strength to Weight: Bending, points | 21 to 41 | |
20 to 28 |
Thermal Diffusivity, mm2/s | 4.8 | |
4.0 |
Thermal Shock Resistance, points | 24 to 66 | |
13 to 22 |
Alloy Composition
Aluminum (Al), % | 0 | |
0 to 0.35 |
Boron (B), % | 0 | |
0.0010 to 0.010 |
Carbon (C), % | 0.75 to 0.85 | |
0 to 0.080 |
Chromium (Cr), % | 3.8 to 4.5 | |
13.5 to 16 |
Cobalt (Co), % | 4.3 to 5.8 | |
0 |
Copper (Cu), % | 0 to 0.25 | |
0 |
Iron (Fe), % | 69.3 to 75.4 | |
49.1 to 59.5 |
Manganese (Mn), % | 0.2 to 0.4 | |
0 to 2.0 |
Molybdenum (Mo), % | 0.4 to 1.0 | |
1.0 to 1.5 |
Nickel (Ni), % | 0 to 0.3 | |
24 to 27 |
Phosphorus (P), % | 0 to 0.030 | |
0 to 0.040 |
Silicon (Si), % | 0.2 to 0.4 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |
Titanium (Ti), % | 0 | |
1.9 to 2.4 |
Tungsten (W), % | 13.3 to 14.8 | |
0 |
Vanadium (V), % | 1.8 to 2.4 | |
0.1 to 0.5 |