EN 1.4857 Stainless Steel vs. ACI-ASTM CN3MN Steel
Both EN 1.4857 stainless steel and ACI-ASTM CN3MN steel are iron alloys. They have 84% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4857 stainless steel and the bottom bar is ACI-ASTM CN3MN steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 150 | |
| 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 210 |
| Elongation at Break, % | 6.7 | |
| 39 |
| Fatigue Strength, MPa | 120 | |
| 250 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 500 | |
| 620 |
| Tensile Strength: Yield (Proof), MPa | 250 | |
| 300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 330 | |
| 310 |
| Maximum Temperature: Corrosion, °C | 440 | |
| 430 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 1100 |
| Melting Completion (Liquidus), °C | 1370 | |
| 1460 |
| Melting Onset (Solidus), °C | 1320 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 460 |
| Thermal Conductivity, W/m-K | 13 | |
| 13 |
| Thermal Expansion, µm/m-K | 16 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.7 | |
| 1.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 2.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 33 |
| Density, g/cm3 | 7.9 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 5.7 | |
| 6.2 |
| Embodied Energy, MJ/kg | 81 | |
| 84 |
| Embodied Water, L/kg | 220 | |
| 200 |
Common Calculations
| PREN (Pitting Resistance) | 26 | |
| 46 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 28 | |
| 200 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 | |
| 210 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 18 | |
| 21 |
| Strength to Weight: Bending, points | 18 | |
| 20 |
| Thermal Diffusivity, mm2/s | 3.4 | |
| 3.4 |
| Thermal Shock Resistance, points | 11 | |
| 14 |
Alloy Composition
| Carbon (C), % | 0.3 to 0.5 | |
| 0 to 0.030 |
| Chromium (Cr), % | 24 to 27 | |
| 20 to 22 |
| Copper (Cu), % | 0 | |
| 0 to 0.75 |
| Iron (Fe), % | 31.4 to 41.7 | |
| 41.4 to 50.3 |
| Manganese (Mn), % | 0 to 2.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0 to 0.5 | |
| 6.0 to 7.0 |
| Nickel (Ni), % | 33 to 36 | |
| 23.5 to 25.5 |
| Nitrogen (N), % | 0 | |
| 0.18 to 0.26 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 1.0 to 2.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.010 |