EN 1.4029 Stainless Steel vs. EN 1.4024 Stainless Steel
Both EN 1.4029 stainless steel and EN 1.4024 stainless steel are iron alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is EN 1.4029 stainless steel and the bottom bar is EN 1.4024 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 10 to 20 | |
| 15 to 22 |
| Fatigue Strength, MPa | 270 to 400 | |
| 220 to 300 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 76 |
| Shear Strength, MPa | 440 to 550 | |
| 370 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 930 | |
| 590 to 750 |
| Tensile Strength: Yield (Proof), MPa | 410 to 740 | |
| 330 to 510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 270 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 750 | |
| 760 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1440 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 30 | |
| 30 |
| Thermal Expansion, µm/m-K | 10 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.7 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.0 | |
| 7.0 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 1.9 |
| Embodied Energy, MJ/kg | 28 | |
| 27 |
| Embodied Water, L/kg | 100 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 13 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 120 | |
| 98 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 440 to 1410 | |
| 280 to 660 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 to 33 | |
| 21 to 27 |
| Strength to Weight: Bending, points | 23 to 27 | |
| 20 to 24 |
| Thermal Diffusivity, mm2/s | 8.1 | |
| 8.1 |
| Thermal Shock Resistance, points | 26 to 34 | |
| 21 to 26 |
Alloy Composition
| Carbon (C), % | 0.25 to 0.32 | |
| 0.12 to 0.17 |
| Chromium (Cr), % | 12 to 13.5 | |
| 12 to 14 |
| Iron (Fe), % | 82.8 to 87.6 | |
| 83.8 to 87.9 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.6 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0.15 to 0.25 | |
| 0 to 0.015 |