Nickel alloy Monel K-500 (2.4375)
Nickel alloy Monel K-500 (2.4375)
Monel K-500 (material number 2.4375, UNS N05500) is a precipitation-hardening nickel-copper alloy. It combines the excellent corrosion resistance of Monel 400 with significantly improved strength and hardness, and excellent non-magnetic properties, making it ideal for harsh marine and chemical processing environments.
What is Monel K-500 material?
It's a nickel-copper alloy.
Monel K-500 is a precipitation-hardening nickel-copper alloy. K500 has similar corrosion resistance to Alloy 400, but offers higher yield strength and tensile strength.
Monel K-500 (2.4375) is a high-performance nickel-based alloy favored for its excellent corrosion resistance and high strength after precipitation hardening, making it suitable for a variety of industrial applications.
Monel K-500 (UNS N05500 / W.Nr. 2.4375) equivalent standard
| Specification / Standard | Designation |
|---|---|
| UNS | N05500 |
| BS | 3072, 3076 (NA18) |
| DIN | 17743, 17752-17754 |
| QQ-N | 6208, 9723-9725 |
| ASTM | B1865 |
| SAE AMS | 4676 286 |
| NACE / ISO | MR 0175 / 15156 |
| ISO | 1192 |
| ASME | Grade Monel K-500 |
Monel K-500 Chemical Composition Analysis
| Element | Content |
|---|---|
| Nickel (Ni) | Min. 63.0% |
| Copper (Cu) | 27.0 – 33.0% |
| Aluminum (Al) | 2.30 – 3.15% |
| Titanium (Ti) | 0.35 – 0.85% |
| Iron (Fe) | Max. 2.0% |
| Carbon (C) | Max. 0.25% |
| Manganese (Mn) | Max. 1.5% |
| Sulfur (S) | Max. 0.01% |
| Silicon (Si) | Max. 0.5% |
Physical and thermal properties of Monel alloy K-500
| Property | Value |
|---|---|
| Density | 8.84 g/cm³ |
| Melting Range | 1315 – 1350°C |
| Specific Heat Capacity | 419 J/kg·°C |
| Curie Temperature | 100°C |
| Magnetic Permeability (at 200 Oersted / 15.9 kA/m) | 1.002 |
| Coefficient of Thermal Expansion (21 – 93°C) | 13.7 μm/m·°C |
| Thermal Conductivity | 17.5 W/m·°C |
| Electrical Resistivity | 0.615 Ω·mm²/m |
| Young's Modulus (Room Temperature) | 103 ksi (710 MPa) |
monel K-500 Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 160 ksi (1100 MPa) |
| Yield Strength | 115 ksi (790 MPa) |
| Elongation | 20% |
Mechanical Properties (Precipitation Hardening):
Monel K-500 (UNS N05500 / W.Nr. 2.4375) is a nickel-copper alloy that combines the excellent corrosion resistance of Monel 400 (2.4360) with greater strength and hardness. Precipitation hardening is achieved by adding aluminum and titanium and heat-treating under controlled conditions to form Ni3(Ti, Al) submicroscopic particles. The alloy does not exhibit magnetism above -101°C.
Typical applications of Monel K-500
Typical applications of Monel K-500 include chains and cables, connecting elements and marine engineering wires; pumps and valve components for chemical processing; pulp processing blades and cutters in pulp production; logging probes and tools, pump shafts and propellers in oil drilling; non-magnetic protection devices, safety valves in oil and gas production; sensors and other electronic components.
Gnee Alloy Product Packaging
All stainless steel products are:
✅️Packed in wooden pallets or crates
✅️Covered with moisture-proof wrapping
✅️Labeled with heat number, standard, and size
✅️Shipped worldwide via sea, air, or express
Gnee Alloy K-500 Alloy Packaging
Gnee Alloy Production Equipment and Product Testing
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FAQ
Q1: What is the main advantage of Monel K-500 over Monel 400?
A: Yield Strength. While both offer the same corrosion resistance, K-500 can be age-hardened to achieve over three times the load-bearing capacity, making it the only choice for high-torque shafts and structural marine fasteners.
Q2: How do you prevent Hydrogen Embrittlement in your K-500 bars?
A: We utilize VIM+ESR melting to ensure ultra-low impurities and strictly follow the solution-annealing and aging protocols required by NACE MR0175. This creates a homogeneous microstructure that is resistant to hydrogen diffusion.
Q3: Can Monel K-500 be machined easily?
A: In the annealed state, it is manageable. However, it work-hardens rapidly. As a Manufacturer, we provide Centerless Ground bright rods that reduce your initial setup time and tool wear on your CNC floor.
Q4: Do you offer bulk discounts for major offshore field developments?
A: Absolutely. As a direct factory, we offer tiered Wholesale Pricing and priority inventory scheduling for large-scale energy infrastructure projects.