Ni-Mn bronze marine propellers are often used in commercial and naval vessels, as well as in recreational boats and yachts. They are designed to provide efficient propulsion and reliable performance, even in demanding conditions. Additionally, these propellers can be customized to meet specific requirements, such as size, pitch, and blade design, to optimize performance for different types of vessels. Overall, Ni-Mn bronze marine propellers are a popular choice for boat owners and operators looking for a high-quality, long-lasting propeller that can withstand the rigours of marine use.

Characteristics of Nickel Manganese Bronze (Cu2)

Composition: The main components of nickel manganese bronze alloy include copper (Cu), manganese (Mn), nickel (Ni), iron (Fe), and a small amount of other elements. The specific proportion of ingredients is usually:

Cu: about 50-57%

Al: about 0.5-2%

Mn: about 1-4%

Zn: about 33-38%

Ni: about 2.5-8%

Fe: about 0.5-2.5%

Sn: ≤1.5%

Pb：≤0.5%

Mechanical properties: Nickel manganese bronze has higher strength and hardness, and can withstand greater mechanical stress and wear.

Corrosion resistance: The addition of nickel significantly improves the corrosion resistance of the alloy, especially exhibiting excellent performance in seawater and other corrosive environments.

Wear resistance: Excellent wear resistance enables the propeller to maintain good condition during long-term high load operation.

Advantages of nickel manganese bronze marine propellers

Higher strength and durability: The high strength and hardness of nickel manganese bronze enable propellers to perform well under high load conditions, reducing the risk of deformation and damage.

Excellent corrosion resistance: The addition of nickel significantly improves the corrosion resistance of the alloy, especially suitable for ships that operate in seawater for a long time.

Good processing performance: Nickel manganese bronze is easy to process and cast, capable of producing complex and precise propeller shapes.

Stable performance: During long-term and high-intensity operation, nickel manganese bronze propellers exhibit excellent stability, reducing maintenance requirements.

Application of Nickel Manganese Bronze Marine Propellers

Nickel manganese bronze marine propellers are suitable for various high-performance and high demand ships, including:

Large commercial ships, such as large cargo ships, oil tankers, and container ships, are suitable for long-distance navigation with high loads.

High speed passenger ships, such as high-speed cruise ships and ferries, provide efficient propulsion and durability.

High performance fishing vessel: a fishing vessel used for deep-sea fishing and long-term offshore operations.

Engineering ships and warships, such as tugboats, dredgers, patrol boats, and warships, require high-performance and high durability vessels.

Maintenance of Nickel Manganese Bronze Propellers

Despite the excellent performance and durability of nickel manganese bronze, regular maintenance is still crucial to ensure its optimal performance.

Regular inspection and cleaning: Check the surface of the propeller for dirt, marine life attachment, and damage, and clean and repair it in a timely manner.

Anti corrosion treatment: Although nickel manganese bronze is corrosion-resistant, anti-corrosion treatment can further extend its service life.

Wear and damage repair: When blades are found to be worn or damaged, they should be repaired or replaced in a timely manner to maintain the performance of the propeller.

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