EN 1.4020 Stainless Steel vs. SAE-AISI 1144 Steel
Both EN 1.4020 stainless steel and SAE-AISI 1144 steel are iron alloys. They have 69% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 1144 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 340 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 13 to 34 | |
| 11 to 17 |
| Fatigue Strength, MPa | 340 to 540 | |
| 280 to 430 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 72 |
| Shear Strength, MPa | 510 to 680 | |
| 460 to 510 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 1130 | |
| 750 to 840 |
| Tensile Strength: Yield (Proof), MPa | 430 to 950 | |
| 420 to 690 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 890 | |
| 400 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1450 |
| Melting Onset (Solidus), °C | 1350 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 1.9 |
| Density, g/cm3 | 7.6 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.5 | |
| 1.4 |
| Embodied Energy, MJ/kg | 37 | |
| 19 |
| Embodied Water, L/kg | 150 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 220 | |
| 91 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 2290 | |
| 480 to 1290 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 41 | |
| 27 to 30 |
| Strength to Weight: Bending, points | 25 to 32 | |
| 23 to 25 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 22 to 24 |
Alloy Composition
| Carbon (C), % | 0 to 0.15 | |
| 0.4 to 0.48 |
| Chromium (Cr), % | 16.5 to 19 | |
| 0 |
| Iron (Fe), % | 62.8 to 71.8 | |
| 97.5 to 98 |
| Manganese (Mn), % | 11 to 14 | |
| 1.4 to 1.7 |
| Nickel (Ni), % | 0.5 to 2.5 | |
| 0 |
| Nitrogen (N), % | 0.2 to 0.45 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.24 to 0.33 |