EN 1.4612 Stainless Steel vs. EN 1.4421 Stainless Steel
Both EN 1.4612 stainless steel and EN 1.4421 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.4612 stainless steel and the bottom bar is EN 1.4421 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 | |
| 11 to 17 |
| Fatigue Strength, MPa | 860 to 950 | |
| 380 to 520 |
| Impact Strength: V-Notched Charpy, J | 11 to 22 | |
| 30 to 67 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 1690 to 1850 | |
| 880 to 1100 |
| Tensile Strength: Yield (Proof), MPa | 1570 to 1730 | |
| 620 to 950 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 450 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 790 | |
| 870 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1440 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 11 | |
| 10 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 16 | |
| 12 |
| Density, g/cm3 | 7.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.6 | |
| 2.6 |
| Embodied Energy, MJ/kg | 50 | |
| 36 |
| Embodied Water, L/kg | 140 | |
| 130 |
Common Calculations
| PREN (Pitting Resistance) | 19 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 210 | |
| 120 to 140 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 60 to 65 | |
| 31 to 39 |
| Strength to Weight: Bending, points | 40 to 43 | |
| 26 to 30 |
| Thermal Shock Resistance, points | 58 to 63 | |
| 31 to 39 |
Alloy Composition
| Aluminum (Al), % | 1.4 to 1.8 | |
| 0 |
| Carbon (C), % | 0 to 0.015 | |
| 0 to 0.060 |
| Chromium (Cr), % | 11 to 12.5 | |
| 15.5 to 17.5 |
| Iron (Fe), % | 71.5 to 75.5 | |
| 74.4 to 80.5 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 1.8 to 2.3 | |
| 0 to 0.7 |
| Nickel (Ni), % | 10.2 to 11.3 | |
| 4.0 to 5.5 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.8 |
| Sulfur (S), % | 0 to 0.0050 | |
| 0 to 0.020 |
| Titanium (Ti), % | 0.2 to 0.5 | |
| 0 |