MIM-Ni18Co9Mo5 is a maraging steel that is often used to produce high-strength wear-resistant rotating shafts and pin parts.

Ni18Co9Mo5 Metal Injection Molding

MIM Ni18Co9Mo5 refers to a specific composition of nickel-cobalt-molybdenum alloy produced through Metal Injection Molding (MIM) technology. This material composition highlights the percentage of primary elements in the alloy: approximately 18% nickel (Ni), 9% cobalt (Co), and 5% molybdenum (Mo), with the remainder being other elements and impurities as dictated by specific application requirements.

MIM technology is a manufacturing process that combines the versatility and design flexibility of plastic injection molding with metal's mechanical and thermal properties. This process is ideal for producing small, complex-shaped metal parts with high precision and excellent surface finish.

The Ni18Co9Mo5 alloy, due to its unique composition, exhibits a blend of mechanical strength, corrosion resistance, and thermal properties. The presence of nickel enhances the material's overall strength and offers good corrosion resistance, particularly in harsh environments. Cobalt increases the material's wear resistance and strength at high temperatures. Molybdenum contributes to the alloy's high-temperature strength and hardness while improving its resistance to pitting corrosion.

This material is often used in applications requiring high strength, excellent mechanical properties at elevated temperatures, and good corrosion resistance. Typical applications include aerospace components, automotive parts, medical devices, and energy sector components. Such as power tool shafts, pins, etc. The MIM process allows for the cost-effective production of Ni18Co9Mo5 parts with complex geometries, reducing the need for secondary machining and finishing processes.


MIM Ni18Co9Mo5 Typical Properties

Download PDF: MIM Ni18Co9Mo5 Datasheet

Chemical Composition


Ni (%)

Co (%)

Mo (%)

Fe (balance)


















Physics and Mechanical Properties



Tensile Strength (MPa)

Yield Strength (MPa)

Impact Strength (J, at room temp.)

Hardness (HRC)

Young's Modulus (GPa)

Poisson's Ratio

Elongation (%)

Density (g/cm³)

Typical Value

Annealed/Solution Treated









Key Features And Applications of MIM-Ni18Co9Mo5 Parts

High Mechanical Strength

Aerospace Components: The aerospace industry demands materials that can endure the extreme forces encountered during flight and space missions. MIM-Ni18Co9Mo5, with its high mechanical strength, is perfect for manufacturing critical structural components such as landing gear parts, fasteners, and engine mounts. These components benefit from the alloy's ability to withstand high stress and vibration without failure, ensuring safety and reliability.

Automotive Engine Parts: High-performance and luxury vehicles require engine components that can handle the stresses of high-speed operation and prolonged use. The strength of MIM-Ni18Co9Mo5 makes it suitable for producing durable engine parts, including turbocharger components and exhaust manifolds, which are crucial for maintaining engine efficiency and performance under varying thermal and pressure conditions.


Exceptional Corrosion Resistance

Chemical Processing Equipment: In the chemical processing industry, equipment is regularly exposed to corrosive substances that can degrade most materials. MIM-Ni18Co9Mo5's exceptional corrosion resistance ensures that components such as reactor vessels, piping, and sensors maintain integrity over time, reducing the risk of leaks and failures that could lead to hazardous incidents.

Marine Hardware: The marine environment is notoriously harsh, with saltwater and humidity accelerating corrosion. Marine hardware, including anchors, deck fittings, and pulleys made from MIM-Ni18Co9Mo5, resists corrosion, ensuring longevity and reducing the need for frequent replacements, which is crucial for vessels operating in remote or high-sea conditions.

Elevated Temperature Performance

Aerospace Engine Components: Aerospace engines operate at extremely high temperatures, requiring materials that can withstand such conditions without losing mechanical properties. MIM-Ni18Co9Mo5 is utilized in manufacturing high-temperature engine components like combustion chamber liners and afterburner parts, which are essential for engine efficiency and reliability.

Industrial Furnace Parts: Industrial processes such as heat treatment, sintering, and forging rely on furnaces that operate at elevated temperatures. Furnace components, including heating elements, thermocouple sheaths, and load-bearing grids made from MIM-Ni18Co9Mo5, offer enhanced performance and durability, contributing to process consistency and product quality.


Superior Wear Resistance

Heavy Machinery: The mining and construction sectors depend on equipment that can withstand abrasive environments and heavy use. MIM-Ni18Co9Mo5 is ideal for creating cutting edges, drilling components, and wear plates that retain their functionality over time, improving equipment efficiency and reducing downtime for maintenance or part replacement.

Medical Devices: High wear resistance is critical for medical devices and surgical instruments, which must endure repeated sterilization and intense use while maintaining precision. MIM-Ni18Co9Mo5 allows for the production of scalpel blades, joint replacement components, and endoscopic surgery tools, offering durability and reliability essential for patient care.

Complex Shape Fabrication

Consumer Electronics: The miniaturization trend in electronics demands small and complex components. MIM-Ni18Co9Mo5 enables the manufacture of intricate parts like camera modules, connectors, and button mechanisms, vital to modern gadgets' functionality and compact design.

Firearms Manufacturing: Firearms require precise mechanical components that can withstand the pressures of firing and the rigors of field use. MIM-Ni18Co9Mo5 produces detailed parts such as firing pins, hammer mechanisms, and slide components, combining the required precision with the durability needed for safety and performance.

Cost Efficiency for Complex Parts

Watchmaking: The luxury watch industry values precision and durability. MIM-Ni18Co9Mo5 allows for the economical production of intricate watch components, including the escapement mechanism and winding stems, ensuring the watches meet the high standards of accuracy and longevity.

Custom Machinery Components: Customized machinery in sectors like robotics, semiconductor manufacturing, and specialized production equipment often requires uniquely designed parts. MIM-Ni18Co9Mo5's cost efficiency and capability to produce complex shapes with tight tolerances make it an ideal choice for fabricating bespoke components that meet specific operational requirements.

The applications of MIM-Ni18Co9Mo5 across these diverse fields demonstrate the material's critical role in modern engineering and manufacturing. Its combination of mechanical strength, corrosion resistance, high-temperature performance, wear resistance, and cost efficiency for complex shapes makes it a preferred choice for industries facing challenging material requirements.

What We Can Do In MIM?


Consultative Design Services

Neway Custom Metal Injection Molding Service provides free Consultative Design Services throughout the process. This includes all processes from your design stage to mass-produced finished products.

1. Material selection Consult

2. Structural design service

3. Mold design service

Contact us now if you are interested.

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