Monel K-500 vs. SAE-AISI 4140 Steel
Monel K-500 belongs to the nickel alloys classification, while SAE-AISI 4140 steel belongs to the iron alloys. There are 30 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 Monel K-500 and the bottom bar is SAE-AISI 4140 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 160 | |
| 190 |
| Elongation at Break, % | 25 to 36 | |
| 11 to 26 |
| Fatigue Strength, MPa | 260 to 560 | |
| 360 to 650 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 61 | |
| 73 |
| Shear Strength, MPa | 430 to 700 | |
| 410 to 660 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 1100 | |
| 690 to 1080 |
| Tensile Strength: Yield (Proof), MPa | 310 to 880 | |
| 590 to 990 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 900 | |
| 420 |
| Melting Completion (Liquidus), °C | 1350 | |
| 1460 |
| Melting Onset (Solidus), °C | 1320 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 470 |
| Thermal Conductivity, W/m-K | 18 | |
| 43 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.2 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 2.4 |
| Density, g/cm3 | 8.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 1.5 |
| Embodied Energy, MJ/kg | 120 | |
| 20 |
| Embodied Water, L/kg | 280 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 180 to 260 | |
| 74 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 2420 | |
| 920 to 2590 |
| Stiffness to Weight: Axial, points | 10 | |
| 13 |
| Stiffness to Weight: Bending, points | 21 | |
| 24 |
| Strength to Weight: Axial, points | 21 to 35 | |
| 25 to 38 |
| Strength to Weight: Bending, points | 19 to 27 | |
| 22 to 30 |
| Thermal Diffusivity, mm2/s | 4.8 | |
| 12 |
| Thermal Shock Resistance, points | 21 to 36 | |
| 20 to 32 |
Alloy Composition
| Aluminum (Al), % | 2.3 to 3.2 | |
| 0 |
| Carbon (C), % | 0 to 0.18 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 0 | |
| 0.8 to 1.1 |
| Copper (Cu), % | 27 to 33 | |
| 0 |
| Iron (Fe), % | 0 to 2.0 | |
| 96.8 to 97.8 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0.75 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 63 to 70.4 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.040 |
| Titanium (Ti), % | 0.35 to 0.85 | |
| 0 |