AISI 440B Stainless Steel vs. SAE-AISI D2 Steel
Both AISI 440B stainless steel and SAE-AISI D2 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is AISI 440B stainless steel and the bottom bar is SAE-AISI D2 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 3.0 to 18 | |
| 5.0 to 16 |
| Fatigue Strength, MPa | 260 to 850 | |
| 310 to 860 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 75 |
| Shear Strength, MPa | 460 to 1110 | |
| 460 to 1160 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 1930 | |
| 760 to 2000 |
| Tensile Strength: Yield (Proof), MPa | 430 to 1860 | |
| 470 to 1510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Melting Completion (Liquidus), °C | 1480 | |
| 1440 |
| Melting Onset (Solidus), °C | 1370 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 23 | |
| 31 |
| Thermal Expansion, µm/m-K | 10 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 4.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 5.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 8.0 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 3.4 |
| Embodied Energy, MJ/kg | 31 | |
| 50 |
| Embodied Water, L/kg | 120 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 15 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 57 to 110 | |
| 92 to 100 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 27 to 70 | |
| 27 to 72 |
| Strength to Weight: Bending, points | 24 to 45 | |
| 24 to 46 |
| Thermal Diffusivity, mm2/s | 6.1 | |
| 8.3 |
| Thermal Shock Resistance, points | 27 to 70 | |
| 25 to 67 |
Alloy Composition
| Carbon (C), % | 0.75 to 1.0 | |
| 1.4 to 1.6 |
| Chromium (Cr), % | 16 to 18 | |
| 11 to 13 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 78.2 to 83.3 | |
| 81.3 to 86.9 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 0.6 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 0.7 to 1.2 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0 to 1.1 |