SAE-AISI D5 Steel vs. AISI 440B Stainless Steel
Both SAE-AISI D5 steel and AISI 440B stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI D5 steel and the bottom bar is AISI 440B stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 5.4 to 14 | |
| 3.0 to 18 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 77 |
| Shear Strength, MPa | 470 to 1180 | |
| 460 to 1110 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 2030 | |
| 740 to 1930 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1480 |
| Melting Onset (Solidus), °C | 1390 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 27 | |
| 23 |
| Thermal Expansion, µm/m-K | 11 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.2 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.9 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 9.0 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 3.5 | |
| 2.2 |
| Embodied Energy, MJ/kg | 51 | |
| 31 |
| Embodied Water, L/kg | 120 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 18 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 73 | |
| 27 to 70 |
| Strength to Weight: Bending, points | 24 to 46 | |
| 24 to 45 |
| Thermal Diffusivity, mm2/s | 7.4 | |
| 6.1 |
| Thermal Shock Resistance, points | 26 to 67 | |
| 27 to 70 |
Alloy Composition
| Carbon (C), % | 1.4 to 1.6 | |
| 0.75 to 1.0 |
| Chromium (Cr), % | 11 to 13 | |
| 16 to 18 |
| Cobalt (Co), % | 2.5 to 3.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 77.9 to 84.4 | |
| 78.2 to 83.3 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.7 to 1.2 | |
| 0 to 0.75 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |
| Vanadium (V), % | 0 to 1.0 | |
| 0 |