MP159 Superalloy Material Properties

2025-05-26

The MP159 alloy is a cobalt-nickel-chromium-molybdenum superalloy known for its exceptional strength, toughness, and corrosion resistance, particularly in extreme environments. It is commonly used in aerospace, medical implants, and high-performance applications. Below are its key material properties：

Corrosion & Wear Resistance

Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC).
Highly resistant to oxidation and sulfidation at high temperatures.
Good biocompatibility, making it suitable for medical implants.

Tensile Strength

MP159 exhibits high tensile strength, making it suitable for high-stress applications.

Density

Approximately 8.6 g/cm³, providing a favorable strength-to-weight ratio for demanding applications.

Thermal Conductivity

Moderate thermal conductivity supports stable performance in high-temperature conditions.

Oxidation Resistance

MP159 provides outstanding resistance to oxidation at elevated temperatures, enhancing component lifespan.

Fabrication and Working Instructions

Cobalt MP159 is produced using the vacuum induction method, followed by VAC-ARC, and VIM-VAR remelting, which yields the best solidification results.

Thanks to its excellent flexibility, Cobalt MP159 can be cold-worked using all conventional methods to produce relatively complex parts. MP159 responds very well to aging. The phase transformation between cold-working and aging can also be used for strengthening the alloy up to 265,000 psi (1830 MPa).

The method to achieve that strength starts with cold-working for 45-50% reduction of area, followed by aging at 1225 °F (663 °C) for 4 hours and then air-cooled to room temperature. Additional work strengthening can be accomplished by extrusion, rolling, swaging, pilgering, and drawing, or a combination of any of those processes.

Application areas of MP159 materials

Aerospace: Turbine blades, engine components.
Medical: Orthopedic implants, surgical tools.
Oil & Gas: Downhole tools, valves.
Industrial: High-stress fasteners, springs.

Purchase High-Quality MP159 Alloy at a Bargain Price

Lork Group supplies premium MP159 alloy that meets international standards. We stock a wide range of products, including rods, pipes, sheets, and strips, ready for immediate delivery.

Our competitive pricing is based on order quantity and specific supply conditions, ensuring the best price-to-quality ratio in the market.

We welcome long-term partnerships and invite you to buy MP159 alloy at the best price from a trusted supplier.