SAE-AISI D2 Steel vs. AISI 422 Stainless Steel
Both SAE-AISI D2 steel and AISI 422 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 30 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 D2 steel and the bottom bar is AISI 422 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 5.0 to 16 | |
| 15 to 17 |
| Fatigue Strength, MPa | 310 to 860 | |
| 410 to 500 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 76 |
| Shear Strength, MPa | 460 to 1160 | |
| 560 to 660 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 2000 | |
| 910 to 1080 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1510 | |
| 670 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 270 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1480 |
| Melting Onset (Solidus), °C | 1390 | |
| 1470 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 31 | |
| 24 |
| Thermal Expansion, µm/m-K | 11 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.3 | |
| 4.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.1 | |
| 5.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 8.0 | |
| 11 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 3.1 |
| Embodied Energy, MJ/kg | 50 | |
| 44 |
| Embodied Water, L/kg | 100 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 17 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 92 to 100 | |
| 140 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 5940 | |
| 1140 to 1910 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 27 to 72 | |
| 32 to 38 |
| Strength to Weight: Bending, points | 24 to 46 | |
| 26 to 30 |
| Thermal Diffusivity, mm2/s | 8.3 | |
| 6.4 |
| Thermal Shock Resistance, points | 25 to 67 | |
| 33 to 39 |
Alloy Composition
| Carbon (C), % | 1.4 to 1.6 | |
| 0.2 to 0.25 |
| Chromium (Cr), % | 11 to 13 | |
| 11 to 12.5 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 81.3 to 86.9 | |
| 81.9 to 85.8 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0.5 to 1.0 |
| Molybdenum (Mo), % | 0.7 to 1.2 | |
| 0.9 to 1.3 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0.5 to 1.0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Tungsten (W), % | 0 | |
| 0.9 to 1.3 |
| Vanadium (V), % | 0 to 1.1 | |
| 0.2 to 0.3 |