AISI 440A Stainless Steel vs. SAE-AISI 52100 Steel
Both AISI 440A stainless steel and SAE-AISI 52100 steel are iron alloys. They have 84% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is SAE-AISI 52100 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 5.0 to 20 | |
| 10 to 20 |
| Fatigue Strength, MPa | 270 to 790 | |
| 250 to 340 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 72 |
| Shear Strength, MPa | 450 to 1040 | |
| 370 to 420 |
| Tensile Strength: Ultimate (UTS), MPa | 730 to 1790 | |
| 590 to 2010 |
| Tensile Strength: Yield (Proof), MPa | 420 to 1650 | |
| 360 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 760 | |
| 430 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1450 |
| Melting Onset (Solidus), °C | 1370 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 23 | |
| 47 |
| Thermal Expansion, µm/m-K | 10 | |
| 12 to 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 2.4 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 1.5 |
| Embodied Energy, MJ/kg | 31 | |
| 20 |
| Embodied Water, L/kg | 120 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 87 to 120 | |
| 54 to 310 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 26 to 65 | |
| 21 to 72 |
| Strength to Weight: Bending, points | 23 to 43 | |
| 20 to 45 |
| Thermal Diffusivity, mm2/s | 6.2 | |
| 13 |
| Thermal Shock Resistance, points | 26 to 65 | |
| 19 to 61 |
Alloy Composition
| Carbon (C), % | 0.6 to 0.75 | |
| 0.93 to 1.1 |
| Chromium (Cr), % | 16 to 18 | |
| 1.4 to 1.6 |
| Iron (Fe), % | 78.4 to 83.4 | |
| 96.5 to 97.3 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0.25 to 0.45 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 1.0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |