What materials can carabiners be made from?

Carabiners are essential tools in rope rescue and climbing and are primarily made from materials that provide the necessary strength and durability while being lightweight. Steel and aluminum are the two most common materials used to manufacture carabiners.

Steel carabiners are known for their incredible strength and are often used in fixed anchor points or applications where high loads are anticipated. They can withstand greater forces than other materials, making them reliable for safety-critical situations. On the other hand, aluminum carabiners are popular due to their lightweight nature, which is crucial for activities like climbing where weight reduction can enhance performance and reduce fatigue.

While plastic and copper do have their uses in various applications, they do not possess the strength-to-weight ratio or durability required for safe and effective climbing or rescue operations. Wood is not suitable for carabiners at all due to its inability to withstand elements, moisture, or significant loads, and nylon, while used in slings and other accessories, is not suitable for the structural demands of a carabiner. Therefore, using steel and aluminum as materials for carabiners ensures they meet the rigorous requirements for safety and functionality in rope rescue and climbing activities.