EN 1.4057 Stainless Steel vs. AISI 431 Stainless Steel
Both EN 1.4057 stainless steel and AISI 431 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 (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4057 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, % | 11 to 17 | |
| 15 to 17 |
| Fatigue Strength, MPa | 320 to 430 | |
| 430 to 610 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 520 to 580 | |
| 550 to 840 |
| Tensile Strength: Ultimate (UTS), MPa | 840 to 980 | |
| 890 to 1380 |
| Tensile Strength: Yield (Proof), MPa | 530 to 790 | |
| 710 to 1040 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 280 |
| Maximum Temperature: Corrosion, °C | 400 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 850 | |
| 850 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1510 |
| Melting Onset (Solidus), °C | 1390 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 25 | |
| 26 |
| Thermal Expansion, µm/m-K | 10 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 2.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 3.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 9.0 |
| Density, g/cm3 | 7.7 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 2.2 | |
| 2.2 |
| Embodied Energy, MJ/kg | 32 | |
| 31 |
| Embodied Water, L/kg | 120 | |
| 120 |
Common Calculations
| PREN (Pitting Resistance) | 16 | |
| 16 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 96 to 130 | |
| 140 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 700 to 1610 | |
| 1270 to 2770 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 30 to 35 | |
| 32 to 50 |
| Strength to Weight: Bending, points | 26 to 28 | |
| 27 to 36 |
| Thermal Diffusivity, mm2/s | 6.7 | |
| 7.0 |
| Thermal Shock Resistance, points | 30 to 35 | |
| 28 to 43 |
Alloy Composition
| Carbon (C), % | 0.12 to 0.22 | |
| 0 to 0.2 |
| Chromium (Cr), % | 15 to 17 | |
| 15 to 17 |
| Iron (Fe), % | 77.7 to 83.4 | |
| 78.2 to 83.8 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 1.0 |
| Nickel (Ni), % | 1.5 to 2.5 | |
| 1.3 to 2.5 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |