AISI 420 Stainless Steel vs. EN 1.4029 Stainless Steel
Both AISI 420 stainless steel and EN 1.4029 stainless steel are iron alloys. Their average alloy composition is basically identical. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is EN 1.4029 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 8.0 to 15 | |
| 10 to 20 |
| Fatigue Strength, MPa | 220 to 670 | |
| 270 to 400 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 76 |
| Shear Strength, MPa | 420 to 1010 | |
| 440 to 550 |
| Tensile Strength: Ultimate (UTS), MPa | 690 to 1720 | |
| 700 to 930 |
| Tensile Strength: Yield (Proof), MPa | 380 to 1310 | |
| 410 to 740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 270 |
| Maximum Temperature: Corrosion, °C | 390 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 620 | |
| 750 |
| Melting Completion (Liquidus), °C | 1510 | |
| 1440 |
| Melting Onset (Solidus), °C | 1450 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 27 | |
| 30 |
| Thermal Expansion, µm/m-K | 10 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
| 3.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 | |
| 3.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 7.5 | |
| 7.0 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.0 | |
| 2.0 |
| Embodied Energy, MJ/kg | 28 | |
| 28 |
| Embodied Water, L/kg | 100 | |
| 100 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 14 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 130 | |
| 89 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 4410 | |
| 440 to 1410 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 25 to 62 | |
| 25 to 33 |
| Strength to Weight: Bending, points | 22 to 41 | |
| 23 to 27 |
| Thermal Diffusivity, mm2/s | 7.3 | |
| 8.1 |
| Thermal Shock Resistance, points | 25 to 62 | |
| 26 to 34 |
Alloy Composition
| Carbon (C), % | 0.15 to 0.4 | |
| 0.25 to 0.32 |
| Chromium (Cr), % | 12 to 14 | |
| 12 to 13.5 |
| Iron (Fe), % | 82.3 to 87.9 | |
| 82.8 to 87.6 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.5 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 0 to 0.6 |
| Nickel (Ni), % | 0 to 0.75 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.15 to 0.25 |