Welcome to Changzhou DLX Alloy Co., Ltd.
Email:sales8@dlx-alloy.com Mobile/Whatsapp:+86 199 0611 9641
Specialized manufacturer of heaters, thermocouples and titanium,over 20 years.
Whatsapp:+86 199 0611 9641
Email:sales8@dlx-alloy.com
Add:NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu,China
Product Details

Monel 400 wire is a nickel-copper alloy known for its exceptional corrosion resistance, high strength, and thermal stability. This wire is widely used in various industrial applications, including marine environments, chemical processing, and aerospace components. Monel 400 is particularly valued for its resilience to seawater, acids, and alkalis, making it an ideal material for components exposed to aggressive environments. Whether used in valves, electron tubes, or heating elements, Monel 400 provides long-lasting durability and superior performance in challenging conditions.
Parameter | Monel 400 | Monel K-500 |
|---|---|---|
Material | Nickel-Copper alloy (solid-solution strengthened, hardenable only by cold working) | Nickel-Copper alloy (age-hardenable, with added aluminum and titanium for enhanced strength and hardness) |
Specifications | AMS 7233, ASTM B164, UNS N04400, QQ-N-281 | AMS 4676, ASTM B865, UNS N05500, BS 3075 NA 18, NACE MR0175, QQ-N-286 |
Chemical Composition | Ni: ≥63% | Ni: 63-70% |
Tensile Strength | Annealed: 70-110 ksi (480-760 MPa) | Annealed: 80-110 ksi (550-760 MPa) |
Density | 8.80 g/cm³ (0.318 lb/in³) | 8.44 g/cm³ (0.305 lb/in³) |
Max Operating Temperature | 815°C (1500°F), recommended for springs ≤450°F (232°C) | 450°F (232°C), suitable for -184°C to 232°C (-300°F to 450°F) |
Hardness | Rockwell C23-32 (spring temper) | Rockwell C30-40 (spring temper + aged) |
Wire Diameter | 0.10 mm - 14 mm | 0.10 mm - 14 mm |
Applications | Marine engineering (fasteners, valves, pumps, propeller shafts), chemical processing equipment, electronic components, petroleum distillation towers | Marine engineering (pump shafts, fasteners, propeller shafts), oil and gas industry, chemical processing, medical equipment, aerospace |
Excellent Corrosion Resistance: Highly resistant to seawater, acids, and alkalis, Monel 400 is ideal for use in harsh environments.
High Strength: Monel 400 offers superior mechanical strength, which makes it suitable for applications that require durability and reliability.
Good Fatigue Resistance: It performs well under cyclic stress and pressure, which is important for components exposed to repeated mechanical stress.
Thermal Stability: Monel 400 wire maintains its properties over a wide range of temperatures, ensuring reliable performance in high-temperature applications.
Versatile Applications: This wire is used across diverse industries, from marine to aerospace and chemical processing, thanks to its superior corrosion resistance and strength.


Monel 400 wire is widely used across multiple industries due to its outstanding corrosion resistance and mechanical properties. Its primary applications include:
Marine Environments: Used in marine engineering, offshore oil rigs, and seawater-exposed components, such as propellers and pumps, due to its exceptional resistance to seawater corrosion.
Chemical Processing: Ideal for chemical reactors, valves, and pipes that must withstand harsh chemicals, acids, and alkalis.
Aerospace: Monel 400 wire is used in aircraft components, exhaust systems, and high-temperature applications where both strength and corrosion resistance are critical.
Electronic Components: Employed in the manufacturing of electron tubes, vacuum valves, and electronic devices, where its ability to maintain performance under high temperatures and cyclic stress is essential.
Battery Production: Used in battery connections and electrochemical processes due to its thermal stability.
Heaters and Spark Plugs: Monel 400 wire is also a key material for heating elements and spark plug construction due to its electrical resistance and thermal conductivity.


Superior Corrosion Resistance: Excellent resistance to seawater, acids, and alkalis, ensuring longevity and performance in harsh environments.
Enhanced Mechanical Strength: Monel 400 is a strong, durable alloy capable of withstanding high levels of mechanical stress and fatigue.
Thermal Stability: This wire maintains its properties even at high temperatures, making it ideal for high-temperature industrial applications.
Versatile: Monel 400 wire is adaptable to a wide range of uses, from marine applications to electronic components and heating elements.
Ease of Fabrication: Monel 400 wire can be easily fabricated and formed into different shapes and sizes, making it convenient for various industrial uses.



CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got ISO9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, Precision Alloy , FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.


Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.
For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.


What is Monel 400 wire?
Monel 400 wire is a nickel-copper alloy that combines excellent corrosion resistance, high strength, and thermal stability, making it suitable for demanding applications in marine, chemical, and aerospace industries.
What are the main applications of Monel 400 wire?
Monel 400 is used in marine environments, chemical processing, aerospace components, electronic devices, battery production, and heating elements, among others.
What are the key benefits of Monel 400 wire?
Key benefits include outstanding corrosion resistance, superior mechanical strength, fatigue resistance, thermal stability, and its versatility across industries.
How does Monel 400 wire perform in corrosive environments?
Monel 400 offers excellent resistance to seawater, acids, and alkalis, making it ideal for harsh chemical and marine environments.
Is Monel 400 wire easy to work with?
Yes, Monel 400 wire is highly fabricable, meaning it can be easily formed and shaped for use in a variety of applications, such as electronic components and heating elements.
How should Monel 400 wire be stored?
Monel 400 wire should be stored in a dry, cool environment to prevent corrosion and maintain its performance.
What are your payment terms?
We accept T/T, L/C, Western Union, MoneyGram, and PayPal for payments.
What is the lead time for Monel 400 wire?
The sample lead time is typically 7 days after payment confirmation. Lead times for bulk orders may vary depending on quantity and customization requirements.
Do you offer free samples?
Yes, we provide free samples for testing, but the buyer is responsible for shipping costs.