A carabiner is a type of ring-shaped shackle, made of steel or light aluminum alloys, with a spring-operated latch,[1]​ that is used to quickly and reversibly connect components, especially systems that fulfill a critical safety function. It is used in safety maneuvers within activities such as rescues, climbing, caving, canyoning, mountaineering, etc. It constitutes a delicate piece of equipment in which the user places his or her physical integrity or that of another person, which is why it is essential to take care of some safety aspects. There are various types of carabiners, the most general classification is based on whether or not they have an opening lock.

Every carabiner has two basic elements: the body or carabiner and the hinge. The hinge is the moving part that constitutes the means of opening the carabiner. Additionally, some carabiners have an additional element called "safety". The length of a carabiner is its maximum dimension, the transverse dimension is the measurement of its number two dimension, generally from one side of the carabiner to the other at the height of the hinge.

Contenido

Los aspectos principales de seguridad de un mosquetón son: fabricación siguiendo normas, uso adecuado según especificaciones y cuidados y mantenimiento según fabricante y la marca.

Regulations

In the EU, two specific standards have been developed which are:

• Standard EN 12275.

• EN 362 standard.

Elaboration

The aluminum carabiners are made from the EN AW-7075 alloy (Zn, Cu, Mg, Mn, Cr, Zr, Ti). To make them, a rod is cut and bent. It is forged in a mold at 450° and then an aging heat treatment (T6) is applied. The final piece has a Brinell hardness HB=110, similar to that of a soft steel (HB=120).