What material are cotter pins typically made of?

Cotter pins are typically made of low-carbon steel or stainless steel due to their strength, durability, and resistance to corrosion. Low-carbon steel is commonly used because it provides sufficient tensile strength while also being cost-effective and readily available. Stainless steel cotter pins, on the other hand, are utilized in environments where they may be exposed to moisture or corrosive substances, making them ideal for various applications in aviation and marine industries. The mechanical properties of these materials ensure that cotter pins can withstand the forces and stresses they encounter while securely holding components in place.