Experience the Performance of Monel500 Monel Alloy Ideal for Automotive Aerospace and Construction
Monel 500 is a high-performance nickel-copper alloy, primarily composed of 63% nickel and 30% copper, with small amounts of aluminum. It is specifically engineered for high-strength and excellent corrosion resistance in extreme environments, particularly at elevated temperatures. Monel 500 combines outstanding mechanical properties with superior resistance to seawater, chemicals, and oxidation, making it ideal for demanding applications.
This alloy excels in high-stress conditions, offering exceptional tensile and yield strength, especially in marine, aerospace, and chemical processing industries. It retains good strength and toughness even at elevated temperatures, making it suitable for turbine engines, structural components, and heat exchangers. Monel 500 is non-magnetic, which is advantageous in applications where magnetic properties could interfere, such as in aerospace and electronic components.
Monel 500’s resistance to stress corrosion cracking and fatigue further enhances its suitability for use in harsh environments. Additionally, it maintains good fabricability, allowing for easy welding, machining, and forming. The alloy is also biocompatible, making it usable in medical devices.
In summary, Monel 500’s combination of high strength, corrosion resistance, non-magnetic properties, and high-temperature stability makes it a versatile and reliable material for critical applications in aerospace, marine, chemical, and power generation industries.
Nominal Chemical Composition (%)
| Alloy |
Ni |
Mn |
Fe |
Si |
Cu |
C |
AI |
Ti |
| CX 400 |
66 |
≤1.25 |
1.0-2.5 |
≤0.50 |
28-34 |
≤0.15 |
≤0.50 |
≤0.20 |
| CX 500 |
70 |
≤1.50 |
≤2.0 |
≤0.50 |
27-33 |
≤0.15 |
2.30-3.15 |
0.30-0.85 |
Size Range
| SPEC |
Dia. (mm) |
Width (mm) |
Thickness (mm) |
| Wire |
0.04-12.0 |
/ |
/ |
| Ribbon |
/ |
2 |
≥0.08 |
Physical Properties (at room temperature)
| Alloy |
Density (g/cm3) |
Thermal Conductivity (W/m K) |
Thermal Linear Expansion Coeff. (20-95 ℃) (10-6/K) |
Electrical Resistivity at 20 ℃ (μΩ-cm) |
| CX 400 |
8.80 |
21.8 |
13.9 |
51 |
| CX 500 |
8.45 |
17.5 |
17.5 |
60 |
Mechanical Properties (for cold drawn annealed wire)
| Alloy |
Tensile strength (N/mm2) |
Elongation (% at L0=100mm) |
| Min |
Max |
Min |
Max |
| CX400 |
450 |
650 |
20 |
30 |
| CX500 |
890 |
950 |
20 |
30 |
Some key features of Monel 500 include:
- Age-Hardenable Nickel-Copper Alloy: Monel 500 is a precipitation hardenable alloy through the addition of aluminum and titanium, which enhances its strength and hardness compared to Monel 400 .
- Corrosion Resistance: It retains the excellent corrosion resistance of Monel 400 across a range of marine and chemical environments, from pure water to non-oxidizing mineral acids, salts, and alkalis .
- High Strength and Hardness: After precipitation hardening, Monel 500 has approximately three times the yield strength and double the tensile strength compared to Monel 400 .
- Virtually Non-Magnetic: Monel 500 is virtually nonmagnetic, even at quite low temperatures, which is beneficial for applications where magnetic interference is a concern .
- Dimensionally Stable: The alloy has been found to have exceptionally good dimensional stability, important for high-precision devices such as gyros .
- Excellent Mechanical Properties: It exhibits excellent mechanical properties from sub-zero temperatures up to about 480°C .
- Good Fatigue and Corrosion Fatigue Resistance: After age-hardening, Monel 500 provides good fatigue and corrosion fatigue resistance .
- Weldability: Monel 500 should be annealed when welded, and the weldment then stress relieved before aging to maintain its properties .
These features make Monel 500 a versatile and high-performance alloy for demanding applications where both strength and corrosion resistance are required.
Applications:
- Marine and Offshore: Monel 500 is used in marine and offshore applications due to its excellent corrosion resistance, especially in seawater environments. It is used for chains, cables, fasteners, springs, pump and valve components, and marine propeller shafts.
- Chemical Processing: The alloy is used in chemical processing for pump and valve components, as well as for manufacturing equipment like heat exchangers, evaporators, and pressure vessels due to its resistance to acidic and alkaline environments.
- Oil and Gas Production: Monel 500 is utilized in the oil and gas industry for tubing, valves, and other components exposed to corrosive environments. Its non-magnetic properties make it suitable for instrumentation components.
- Aerospace: The alloy is employed in the aerospace industry for components requiring high strength and toughness, such as fasteners and springs. Its corrosion resistance is also beneficial for components exposed to harsh conditions.
- Medical Devices: Monel 500 is used in medical devices, such as pacemaker components, due to its non-magnetic properties and biocompatibility.
- Pump Shafts and Impellers: It is used for pump shafts, impellers, and propeller shafts in the marine industry, benefiting from its high strength and low corrosion rates in high-velocity seawater.
- Valve Components for Ships and Offshore Drilling Towers: Monel 500 is used for valve components in these environments due to its strength and corrosion resistance.
- Bolts and Oil Well Drill Collars: The alloy is used for bolts, oil well drill collars, and instrumentation components in oil and gas production.
These applications highlight the versatility of Monel 500 in industries where both high strength and corrosion resistance are required.
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