Aluminum bronzes are a family of copper-based alloys containing aluminum as the main alloying element, typically in the range of 5-11%. These alloys are known for their excellent corrosion resistance, high strength, and good wear resistance. The main grades of aluminum bronze are generally categorized based on their aluminum content and specific applications. Here are some of the main grades:

  1. CA 614: This is a popular grade of aluminum bronze, containing around 10% aluminum. It offers good corrosion resistance, especially in marine environments, and is used for applications such as marine hardware, pumps, and valve components.
  2. C62300 / C62400: These grades typically contain 9-11% aluminum, along with other alloying elements like iron and nickel. They are known for their high strength and excellent corrosion resistance, making them suitable for applications such as bearings, gears, and bushings.
  3. C61400: Contains approximately 5-7% aluminum, making it more weldable compared to higher-aluminum content alloys. It is used in applications requiring moderate strength and corrosion resistance.
  4. C95400: Also known as “9C” aluminum bronze, it contains about 10% aluminum and 4% iron. It has excellent strength and wear resistance, making it suitable for applications such as heavy-duty bushings, bearings, and gears.
  5. C95500: Contains around 10% aluminum and 5% nickel. It offers higher strength and improved corrosion resistance compared to other aluminum bronzes, suitable for applications requiring high mechanical strength and wear resistance.

These grades represent some of the common compositions of aluminum bronze alloys, each tailored to specific industrial or marine applications where a combination of high strength, corrosion resistance, and wear resistance is required.