SAE-AISI D4 Steel vs. EN 1.4020 Stainless Steel
Both SAE-AISI D4 steel and EN 1.4020 stainless 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 SAE-AISI D4 steel and the bottom bar is EN 1.4020 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 8.4 to 15 | |
| 13 to 34 |
| Fatigue Strength, MPa | 310 to 920 | |
| 340 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 74 | |
| 77 |
| Shear Strength, MPa | 460 to 1210 | |
| 510 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 2060 | |
| 770 to 1130 |
| Tensile Strength: Yield (Proof), MPa | 470 to 1540 | |
| 430 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 280 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1390 |
| Melting Onset (Solidus), °C | 1380 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 12 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 8.0 | |
| 11 |
| Density, g/cm3 | 7.7 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 3.3 | |
| 2.5 |
| Embodied Energy, MJ/kg | 49 | |
| 37 |
| Embodied Water, L/kg | 100 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 15 | |
| 23 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 160 | |
| 140 to 220 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 27 to 75 | |
| 28 to 41 |
| Strength to Weight: Bending, points | 24 to 47 | |
| 25 to 32 |
| Thermal Shock Resistance, points | 23 to 63 | |
| 16 to 23 |
Alloy Composition
| Carbon (C), % | 2.1 to 2.4 | |
| 0 to 0.15 |
| Chromium (Cr), % | 11 to 13 | |
| 16.5 to 19 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 80.6 to 86.3 | |
| 62.8 to 71.8 |
| Manganese (Mn), % | 0 to 0.6 | |
| 11 to 14 |
| Molybdenum (Mo), % | 0.7 to 1.2 | |
| 0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0.5 to 2.5 |
| Nitrogen (N), % | 0 | |
| 0.2 to 0.45 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 to 1.0 | |
| 0 |