What material are ferrules typically made of?

Ferrules are typically made of materials that ensure durability and resistance to wear, particularly in applications like electrical connections or mechanical assemblies. While aluminum or copper plating is indeed a common choice because it provides good conductivity and corrosion resistance, ferrules are also frequently made from brass, which offers strength and malleability. Additionally, some ferrules are made from plastic for use in non-conductive applications, which helps prevent corrosion and is lightweight.

The presence of various materials reflects the specific requirements for a ferrule's application, such as electrical conductivity, mechanical strength, and environmental resistance. Each material option has its own benefits depending on the context of use, but in general, aluminum or copper plating is favored for electrical purposes.