Nickel alloy MONEL K-500 – properties, applications and technical data
MONEL K-500 is a precipitation-hardenable nickel-copper alloy that combines the excellent corrosion resistance of MONEL 400 with significantly higher strength and hardness.
The alloy achieves its high strength through precipitation hardening via additions of aluminum and titanium, while maintaining very good resistance to corrosion in marine and chemical process environments.
MONEL K-500 is often used in components that are exposed to both high mechanical stress and aggressive environments, especially in the offshore, marine industry and oil and gas production.
Properties of MONEL K-500
MONEL K-500 is a nickel-copper alloy that can be precipitation hardened to achieve significantly higher strength than MONEL 400 while maintaining very good corrosion resistance.
The material also has low magnetic permeability and remains practically non-magnetic down to very low temperatures.
- Type: precipitation-hardenable nickel-copper alloy
- Alloy: Ni-Cu-Al-Ti
- Structure: nickel-based precipitation-hardenable alloy
- Designations: MONEL K-500, Alloy K-500, UNS N05500, W.Nr. 2.4375, K500
- Typical composition: Ni ~63%, Cu ~30%, Al ~2.3%, Ti ~0.6%
Advantages
- Very good corrosion resistance in marine environments
- Significantly higher strength than MONEL 400
- Good resistance to erosion and cavitation
- Low magnetic permeability
- Non-magnetic down to approximately −101 °C
Limitations
- Higher material cost than standard nickel-copper alloys
- Machining can be more demanding in the hardened condition
- Not optimal in highly oxidizing acids
Common product forms for MONEL K-500
- Round bar
- Forgings
- Tubes and pipes
- Fasteners
- Special dimensions according to drawing
Typical components manufactured from MONEL K-500
- Pump shafts
- Ship propeller shafts
- Valve components
- Springs
- Fasteners and screws
- Oil and gas drilling equipment
Corrosion resistance
MONEL K-500 offers very good resistance to corrosion in marine environments, seawater and many chemical process environments.
The alloy also has good resistance to stress corrosion cracking and erosion in high flow environments.
Environments where MONEL K-500 performs well
- Marine environments and seawater
- Offshore and oil and gas production
- Chemical process environments
- Applications with high mechanical stress
Environments to avoid
- Strongly oxidizing acid environments
- Applications where simpler nickel-copper alloys are sufficient
Technical data (age hardened state)
| Yield strength (0.2%) |
~690–965 MPa |
| Tensile strength |
~965–1240 MPa |
| Elongation |
~20 % |
| Density |
~8.44 g/cm³ |
| Modulus of elasticity |
~179 GPa |
| Magnetic properties |
Virtually non-magnetic down to −101 °C |
| Recommended filler material |
MONEL 60 |
With a global network of suppliers, we can offer MONEL K-500 in technical dimensions for demanding marine and industrial applications.
Contact us for technical advice or a quote.
Supplier of MONEL K-500 with certified quality
HARALD PIHL is one of Europe's largest suppliers of special alloys, including nickel-copper alloys such as MONEL K-500.
With over 100 years of experience in In the metal industry, we supply materials with full traceability and certification according to EN 10204 3.1 / 3.2 as well as relevant ASTM and ISO standards.
Cutting, testing and quality assurance are carried out in-house to ensure the right tolerances and fast global delivery for technically demanding projects.
- Europe's largest stock of nickel and titanium alloys
- Nickel-based special alloys from stock
- ASTM / ISO standards
- Top quality for safety-critical applications
- Fast global delivery
- Full material certification (EN 10204 3.1 / 3.2)
- Over 100 years in the metal industry
- Nickel and titanium experts
