EN 1.4122 Stainless Steel vs. AISI 347 Stainless Steel
Both EN 1.4122 stainless steel and AISI 347 stainless steel are iron alloys. They have 87% of their average alloy composition in common. 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 EN 1.4122 stainless steel and the bottom bar is AISI 347 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 | |
| 34 to 46 |
| Fatigue Strength, MPa | 260 to 360 | |
| 220 to 270 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 480 to 520 | |
| 430 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 790 to 850 | |
| 610 to 690 |
| Tensile Strength: Yield (Proof), MPa | 450 to 630 | |
| 240 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 290 |
| Maximum Temperature: Corrosion, °C | 400 | |
| 480 |
| Maximum Temperature: Mechanical, °C | 870 | |
| 870 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1430 |
| Melting Onset (Solidus), °C | 1400 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 16 |
| Thermal Expansion, µm/m-K | 10 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 19 |
| Density, g/cm3 | 7.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 2.4 | |
| 3.6 |
| Embodied Energy, MJ/kg | 33 | |
| 52 |
| Embodied Water, L/kg | 120 | |
| 150 |
Common Calculations
| PREN (Pitting Resistance) | 20 | |
| 18 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 93 to 110 | |
| 190 to 220 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 520 to 1000 | |
| 150 to 310 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 28 to 31 | |
| 22 to 25 |
| Strength to Weight: Bending, points | 25 to 26 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 4.3 |
| Thermal Shock Resistance, points | 28 to 30 | |
| 13 to 15 |
Alloy Composition
| Carbon (C), % | 0.33 to 0.45 | |
| 0 to 0.080 |
| Chromium (Cr), % | 15.5 to 17.5 | |
| 17 to 19 |
| Iron (Fe), % | 77.2 to 83.4 | |
| 64.1 to 74 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.8 to 1.3 | |
| 0 |
| Nickel (Ni), % | 0 to 1.0 | |
| 9.0 to 13 |
| Niobium (Nb), % | 0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |