EN 1.7725 Steel vs. Monel R-405
EN 1.7725 steel belongs to the iron alloys classification, while Monel R-405 belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.7725 steel and the bottom bar is Monel R-405.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 160 |
| Elongation at Break, % | 14 | |
| 9.1 to 39 |
| Fatigue Strength, MPa | 390 to 550 | |
| 210 to 250 |
| Poisson's Ratio | 0.29 | |
| 0.32 |
| Shear Modulus, GPa | 73 | |
| 62 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1000 | |
| 540 to 630 |
| Tensile Strength: Yield (Proof), MPa | 610 to 860 | |
| 190 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 900 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1350 |
| Melting Onset (Solidus), °C | 1420 | |
| 1300 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 430 |
| Thermal Conductivity, W/m-K | 39 | |
| 23 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 3.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 3.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 50 |
| Density, g/cm3 | 7.8 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 7.9 |
| Embodied Energy, MJ/kg | 24 | |
| 110 |
| Embodied Water, L/kg | 54 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
| 49 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 980 to 1940 | |
| 120 to 370 |
| Stiffness to Weight: Axial, points | 13 | |
| 10 |
| Stiffness to Weight: Bending, points | 24 | |
| 21 |
| Strength to Weight: Axial, points | 29 to 35 | |
| 17 to 20 |
| Strength to Weight: Bending, points | 25 to 28 | |
| 17 to 18 |
| Thermal Diffusivity, mm2/s | 11 | |
| 5.9 |
| Thermal Shock Resistance, points | 24 to 29 | |
| 17 to 20 |
Alloy Composition
| Carbon (C), % | 0.27 to 0.34 | |
| 0 to 0.3 |
| Chromium (Cr), % | 1.3 to 1.7 | |
| 0 |
| Copper (Cu), % | 0 | |
| 28 to 34 |
| Iron (Fe), % | 95.7 to 97.5 | |
| 0 to 2.5 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 0.3 to 0.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 63 to 72 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.6 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0.025 to 0.060 |
| Vanadium (V), % | 0.050 to 0.15 | |
| 0 |