Nickel aluminium bronze (Cu3) is an alloy commonly used in the manufacture of marine propellers, widely used due to its superior physical and chemical properties. Nickel aluminium bronze marine propellers are a reliable and durable choice for ship propulsion systems, providing excellent performance and lifespan in demanding marine environments. This alloy is mainly composed of copper, nickel, and aluminium, and may also contain small amounts of other elements such as iron and manganese. The specific proportion of ingredients is usually:

Cu: about 77-82%

Al: about 7-11%

Mn: about 0.5-4%

Zn: ≤1%

Ni: about 3-6%

Fe: about 2-6%

Sn: ≤0.1%

Pb：≤0.03%

Nickel Aluminum Bronze (Cu3) Marine Propeller Application:

Manganese bronze ship propellers are widely used in various types of ships, including:

Merchant ships: such as cargo ships, oil tankers, and container ships.

Passenger ships: such as cruise ships and ferries.

Fishing vessel: a fishing vessel used for nearshore and offshore fishing.

Engineering vessels: such as tugboats, dredgers, and workboats.

Main features and advantages:

Corrosion resistance: Nickel aluminum bronze exhibits excellent corrosion resistance in seawater and other corrosive environments, making it particularly suitable for marine propellers.

High strength: This alloy has high strength and good fatigue resistance, and can withstand high loads and stresses during ship operation.

Wear resistance: The wear resistance of nickel aluminum bronze enables the propeller to maintain good working condition after long-term use, reducing the frequency of maintenance and replacement.

Good workability: This alloy is easy to cast and process, capable of producing propellers with complex shapes while maintaining high precision and quality.

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