Keys are small but essential components that are used in various mechanical systems to transmit torque and power between rotating shafts and components connected to them. The materials used to make the key can significantly affect its strength, durability and overall performance.
In this article, we examine different materials that are commonly used to make keys and their unique properties.
Medium carbon steel
Medium carbon steel is the most common material for making keys. This steel is economical, easy to machine and has good strength and durability. Medium carbon steel keys are suitable for most applications and can withstand medium to heavy loads. They are also resistant to wear and corrosion and are ideal for use in harsh environments. ck45 steel can be mentioned among medium carbon steels.
stainless steel
Stainless steel is another popular material used to make keys. This material is highly resistant to corrosion and rust and is ideal for use in harsh environments or applications where the key may be exposed to moisture or chemicals. Stainless steel keys are also strong, durable and easy to machine. However, they are more expensive than medium carbon steel keys.
aluminium alloy
Aluminum alloy keys are lightweight and have excellent corrosion resistance. They are typically used in applications where weight and corrosion resistance are critical, such as in the aerospace or marine industries. However, aluminum alloy keys are not as strong and durable as steel keys and are more prone to wear and deformation.
Bronze
Bronze keys are commonly used in marine applications due to their excellent corrosion resistance and durability. They are also suitable for use in high temperature applications. Bronze keys are easily machined, but are softer than steel keys, making them prone to wear and deformation.
Copper and brass
Copper and brass switches are used in applications where electrical conductivity is essential, such as electric motors or generators. These materials are also highly resistant to corrosion and are easily machined. However, they are softer and less durable than steel keys and are not suitable for high load applications.