Monel K-500 (UNS N05500/ W.Nr 2.4375)
is a precipitation-strengthened nickel-copper alloy that shares the excellent corrosion resistance of Monel 400 but with significantly higher strength and hardness. This enhanced performance is achieved through the addition of aluminum and titanium, which allow the alloy to be strengthened by a specific heat-treatment process.Our Product Offering Includes:
- Size Range: 15 NB to 150 NB
- Types: Seamless, Welded, Calibrated, and Redrawn
- Wall Thickness: From 0.40 mm to 12.70 mm
- Strict Tolerances: +/- 0.030, ensuring precision for your fabrication needs
We provide pipes in various sizes and thicknesses, ensuring we can meet the unique needs of every customer.
Chemical Composition
| Monel K500 | Ni | C | Al | Mn | Si | Fe | Cu | S | Ti | Cr |
| 63.0 min | 0.25 max | 2.3 – 3.15 | 1.5 max | 0.5 max | 05 – 2 | 27.0 – 33.0 | 0.010 max | 0.35 – 0.85 | – |
Mechanical Properties
| Condition & Size | Yield Strength | Hardness | Tensile Strength | Elongation |
| MPa | Rockwell | MPa | % |
| Cold-Drawn,Annealed and Aged | 586 - 827 | 24-36 C | 896 - 1241 | 30-15 |
| Cold-Drawn,As-Drawn, Aged | 690 - 1379 | 27-40 C | 965 - 1517 | 25.-3 |
| Cold-Drawn,Annealed | 276 - 448 | 90B Max | 621 - 758 | 45-25 |
| Cold-Drawn,As-Drawn | 586 - 965 | 95B-32 C | 758 - 1103 | 15-.2 |
Physical Properties
| Curie Temperature °C | -90 |
| Thermal Expansion °K-1 | 13.4 x 10-6 |
| Magnetic Permeability | <1.005 |
| Young’s Modulus N/mm2 | 179 x 103 |
Applications of Monel K-500 Pipes
The unique properties of Monel K-500 make it the material of choice for a multitude of demanding applications:
- Marine Engineering: Pump shafts, propeller blades, and seawater valves.
- Oil & Gas: Downhole wellhead components, scraper rods, and instruments in sour gas service.
- Chemical Processing: Equipment handling acidic compounds and solvents.
- Aerospace: Critical components requiring high strength-to-weight ratio and reliability.