Monel K-500 vs. AISI 321 Stainless Steel
Monel K-500 belongs to the nickel alloys classification, while AISI 321 stainless steel belongs to the iron alloys. There are 30 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 Monel K-500 and the bottom bar is AISI 321 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 160 | |
| 200 |
| Elongation at Break, % | 25 to 36 | |
| 34 to 50 |
| Fatigue Strength, MPa | 260 to 560 | |
| 220 to 270 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 61 | |
| 77 |
| Shear Strength, MPa | 430 to 700 | |
| 420 to 460 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 1100 | |
| 590 to 690 |
| Tensile Strength: Yield (Proof), MPa | 310 to 880 | |
| 220 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 900 | |
| 870 |
| Melting Completion (Liquidus), °C | 1350 | |
| 1430 |
| Melting Onset (Solidus), °C | 1320 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 480 |
| Thermal Conductivity, W/m-K | 18 | |
| 16 |
| Thermal Expansion, µm/m-K | 14 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
| 2.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.2 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 16 |
| Density, g/cm3 | 8.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 3.2 |
| Embodied Energy, MJ/kg | 120 | |
| 45 |
| Embodied Water, L/kg | 280 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 180 to 260 | |
| 190 to 230 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 2420 | |
| 130 to 310 |
| Stiffness to Weight: Axial, points | 10 | |
| 14 |
| Stiffness to Weight: Bending, points | 21 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 35 | |
| 21 to 25 |
| Strength to Weight: Bending, points | 19 to 27 | |
| 20 to 22 |
| Thermal Diffusivity, mm2/s | 4.8 | |
| 4.1 |
| Thermal Shock Resistance, points | 21 to 36 | |
| 13 to 15 |
Alloy Composition
| Aluminum (Al), % | 2.3 to 3.2 | |
| 0 |
| Carbon (C), % | 0 to 0.18 | |
| 0 to 0.080 |
| Chromium (Cr), % | 0 | |
| 17 to 19 |
| Copper (Cu), % | 27 to 33 | |
| 0 |
| Iron (Fe), % | 0 to 2.0 | |
| 65.3 to 74 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 2.0 |
| Nickel (Ni), % | 63 to 70.4 | |
| 9.0 to 12 |
| Nitrogen (N), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0.35 to 0.85 | |
| 0 to 0.7 |