EN 1.4421 Stainless Steel vs. AISI 334 Stainless Steel
Both EN 1.4421 stainless steel and AISI 334 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 27 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 1.4421 stainless steel and the bottom bar is AISI 334 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 11 to 17 | |
| 34 |
| Fatigue Strength, MPa | 380 to 520 | |
| 150 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 880 to 1100 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 620 to 950 | |
| 190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 490 |
| Maximum Temperature: Mechanical, °C | 870 | |
| 1000 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1410 |
| Melting Onset (Solidus), °C | 1400 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 10 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 22 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 4.1 |
| Embodied Energy, MJ/kg | 36 | |
| 59 |
| Embodied Water, L/kg | 130 | |
| 170 |
Common Calculations
| PREN (Pitting Resistance) | 18 | |
| 19 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 to 140 | |
| 140 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 960 to 2270 | |
| 96 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 31 to 39 | |
| 19 |
| Strength to Weight: Bending, points | 26 to 30 | |
| 19 |
| Thermal Shock Resistance, points | 31 to 39 | |
| 12 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.15 to 0.6 |
| Carbon (C), % | 0 to 0.060 | |
| 0 to 0.080 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 18 to 20 |
| Iron (Fe), % | 74.4 to 80.5 | |
| 55.7 to 62.7 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.7 | |
| 0 |
| Nickel (Ni), % | 4.0 to 5.5 | |
| 19 to 21 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.8 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 0.15 to 0.6 |