EN 1.4568 Stainless Steel vs. AISI 431 Stainless Steel
Both EN 1.4568 stainless steel and AISI 431 stainless steel are iron alloys. They have a moderately high 93% 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 1.4568 stainless steel and the bottom bar is AISI 431 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 2.3 to 21 | |
| 15 to 17 |
| Fatigue Strength, MPa | 220 to 670 | |
| 430 to 610 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Shear Strength, MPa | 520 to 930 | |
| 550 to 840 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1620 | |
| 890 to 1380 |
| Tensile Strength: Yield (Proof), MPa | 330 to 1490 | |
| 710 to 1040 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 410 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 890 | |
| 850 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1510 |
| Melting Onset (Solidus), °C | 1380 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 16 | |
| 26 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 2.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 3.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 9.0 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 2.2 |
| Embodied Energy, MJ/kg | 40 | |
| 31 |
| Embodied Water, L/kg | 140 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 17 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 36 to 140 | |
| 140 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 290 to 5710 | |
| 1270 to 2770 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 30 to 58 | |
| 32 to 50 |
| Strength to Weight: Bending, points | 25 to 40 | |
| 27 to 36 |
| Thermal Diffusivity, mm2/s | 4.3 | |
| 7.0 |
| Thermal Shock Resistance, points | 23 to 46 | |
| 28 to 43 |
Alloy Composition
| Aluminum (Al), % | 0.7 to 1.5 | |
| 0 |
| Carbon (C), % | 0 to 0.090 | |
| 0 to 0.2 |
| Chromium (Cr), % | 16 to 18 | |
| 15 to 17 |
| Iron (Fe), % | 70.9 to 76.8 | |
| 78.2 to 83.8 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 6.5 to 7.8 | |
| 1.3 to 2.5 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.7 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |