AISI 201L Stainless Steel vs. SAE-AISI 8645 Steel
Both AISI 201L stainless steel and SAE-AISI 8645 steel are iron alloys. They have 74% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is AISI 201L stainless steel and the bottom bar is SAE-AISI 8645 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 320 | |
| 180 to 200 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 22 to 46 | |
| 12 to 23 |
| Fatigue Strength, MPa | 270 to 530 | |
| 280 to 350 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 73 |
| Shear Strength, MPa | 520 to 660 | |
| 380 to 400 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 1040 | |
| 600 to 670 |
| Tensile Strength: Yield (Proof), MPa | 290 to 790 | |
| 390 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 410 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1460 |
| Melting Onset (Solidus), °C | 1370 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 39 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 2.6 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 1.5 |
| Embodied Energy, MJ/kg | 38 | |
| 20 |
| Embodied Water, L/kg | 140 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 210 to 300 | |
| 77 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 220 to 1570 | |
| 420 to 840 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 37 | |
| 21 to 24 |
| Strength to Weight: Bending, points | 24 to 30 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 10 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 18 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.43 to 0.48 |
| Chromium (Cr), % | 16 to 18 | |
| 0.4 to 0.6 |
| Iron (Fe), % | 67.9 to 75 | |
| 96.5 to 97.7 |
| Manganese (Mn), % | 5.5 to 7.5 | |
| 0.75 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 0.4 to 0.7 |
| Nitrogen (N), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.75 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.040 |