AISI 420 Stainless Steel vs. SAE-AISI S6 Steel
Both AISI 420 stainless steel and SAE-AISI S6 steel are iron alloys. They have 88% of their average alloy composition in common. There are 24 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 AISI 420 stainless steel and the bottom bar is SAE-AISI S6 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 1720 | |
| 670 to 1920 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Melting Completion (Liquidus), °C | 1510 | |
| 1430 |
| Melting Onset (Solidus), °C | 1450 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 27 | |
| 41 |
| Thermal Expansion, µm/m-K | 10 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
| 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 | |
| 8.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.5 | |
| 3.2 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 2.3 |
| Embodied Energy, MJ/kg | 28 | |
| 33 |
| Embodied Water, L/kg | 100 | |
| 56 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 2.7 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 to 62 | |
| 24 to 70 |
| Strength to Weight: Bending, points | 22 to 41 | |
| 22 to 45 |
| Thermal Diffusivity, mm2/s | 7.3 | |
| 11 |
| Thermal Shock Resistance, points | 25 to 62 | |
| 22 to 64 |
Alloy Composition
| Carbon (C), % | 0.15 to 0.4 | |
| 0.4 to 0.5 |
| Chromium (Cr), % | 12 to 14 | |
| 1.2 to 1.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 82.3 to 87.9 | |
| 92.8 to 94.7 |
| Manganese (Mn), % | 0 to 1.0 | |
| 1.2 to 1.5 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0.3 to 0.5 |
| Nickel (Ni), % | 0 to 0.75 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 2.0 to 2.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0.2 to 0.4 |