EN 1.4020 Stainless Steel vs. SAE-AISI D4 Steel
Both EN 1.4020 stainless steel and SAE-AISI D4 steel are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is EN 1.4020 stainless steel and the bottom bar is SAE-AISI D4 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 13 to 34 | |
| 8.4 to 15 |
| Fatigue Strength, MPa | 340 to 540 | |
| 310 to 920 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 74 |
| Shear Strength, MPa | 510 to 680 | |
| 460 to 1210 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 1130 | |
| 760 to 2060 |
| Tensile Strength: Yield (Proof), MPa | 430 to 950 | |
| 470 to 1540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1430 |
| Melting Onset (Solidus), °C | 1350 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 8.0 |
| Density, g/cm3 | 7.6 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.5 | |
| 3.3 |
| Embodied Energy, MJ/kg | 37 | |
| 49 |
| Embodied Water, L/kg | 150 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 23 | |
| 15 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 220 | |
| 100 to 160 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 41 | |
| 27 to 75 |
| Strength to Weight: Bending, points | 25 to 32 | |
| 24 to 47 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 23 to 63 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 2.1 to 2.4 |
| Chromium (Cr), % | 16.5 to 19 | |
| 11 to 13 |
| Copper (Cu), % | 0 | |
| 0 to 0.25 |
| Iron (Fe), % | 62.8 to 71.8 | |
| 80.6 to 86.3 |
| Manganese (Mn), % | 11 to 14 | |
| 0 to 0.6 |
| Molybdenum (Mo), % | 0 | |
| 0.7 to 1.2 |
| Nickel (Ni), % | 0.5 to 2.5 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0.2 to 0.45 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0 to 1.0 |