Steel carabiner

At bolting.eu you will find many steel carabiners for different applications. That’s why we present the areas of application in more detail below.
Areas of application Steel carabiner
The different sizes and shapes indicate the different applications.

Firstly, for alpine use as a deflection carabiner or fixed carabiner in climbing anchors and for rescue operations.

Secondly, for slackliners who need really strong carabiners for highlines or longlines.

Thirdly, for work at heights. This is because, on the one hand, significantly higher safety reserves are required here. And secondly, the work is highly repetitive. This requires abrasion-resistant stainless steel carabiners.

And fourthly, for use in construction, forestry and agriculture. Very strong carabiners are also required here due to heavy loads.
Steel carabiners in the alpine area
Here they are used as lower off on climbing anchors. This is because this category of carabiner is usually extremely abrasion-resistant and also somewhat thicker. This makes them very durable.

Most deflection carabiners also have an anti-theft device. A so-called “splint”. It prevents the carabiner from being removed from the climbing anchor. In our store you will therefore also find classics such as the Austrialpin D-Asymm, Austrialpin Micro Inox with splint and stainless steel deflection carabiners from CT.

On the other hand, they are also used for rescue purposes due to their extremely high breaking loads. With loads of around 40 kn = 4,000 kg, they are ideal for cable winches, pulley systems, etc. This is why they are an integral part of many rescue organizations. For example, mountain rescue or fire departments.
Steel carabiners for slacklining
Long lines and little sag. This means high loads for the anchor points and connection points. The extremely strong carabiners are welcome helpers during set-up.

This is because the breaking loads of the stronger models are usually 35kN = 3,500kg upwards. We even have models with up to 50kN breaking load.

This shows the advantage of the O-shaped carabiners, which distribute the load evenly in the longitudinal direction.

You will therefore also find a few models of this type here. Such as the Camp Oval Pro Lock or Camp Oval Standard Lock.
Application for work at heights
The requirements for carabiners in the work at heights area are very strict. This applies to both the materials and the breaking loads. As a result, steel carabiners are very often preferred to aluminum carabiners in this work area.

On the one hand, once again because of their high breaking loads. And secondly because they are so abrasion-resistant. This means that they do not wear out so quickly during highly repetitive work processes. For example, when constantly running through a rope at an abseiling point.

Good examples of such carabiners are. The Austrialpin Asymm Oval XL, Camp D Lock Pro and the Kong X Large Inox steel carabiner.
Applications in construction, forestry and agriculture
Large components usually mean large loads. Only strong steel carabiners are able to hold these loads and leave sufficient safety reserve. This is why they are often referred to as heavy-duty carabiners.

Another advantage of steel carabiners. Their insensitivity to dirt. Because this is omnipresent in these industries. Washing in clear water is usually sufficient to remove dirt. This is much trickier with “sensitive” aluminum carabiners.

In our store you will find suitable models such as the Kong Heavy Duty carabiner or the Stubai Super 5000.
Steel carabiner shapes
Have you ever thought about the following? Why are there different shapes of steel carabiners?

The answer is basically quite simple. Because they were built for different purposes.

Firstly, for capturing wide objects. This requires a large opening. This is achieved with a D-shape. Secondly, there is the O-shape. Its purpose is to automatically bring the load into the best position. The longitudinal direction.
O – Shape
Due to their oval shape, these carabiners automatically align themselves lengthwise. This is important for slackline anchoring, for example, where cross-loading should be avoided.

This effect is also desirable at work at heights. Here, for example, the carabiner position should not change during work. An oval carabiner is more likely to slip in the direction of the load than a D-shaped carabiner.

O-shaped steel carabiners also tend to have wider contact surfaces. This means that you can also attach wide straps, “slings” or harnesses here.
D – Shape
As already mentioned, the D-shape has a major advantage. The large carabiner opening. Larger parts fit through here than with the other shapes.

Consequently, these steel carabiners are often found in the construction and forestry industries. Belts, “slings” and chains are constantly used here.

Our best-selling model in this segment is therefore the Kong Heavy Duty.
C – Shape
With c-shaped karabiners, the aim is to achieve the following. Namely the nesting of narrow components very close to the strong longitudinal axis.

The prime example of this is the Stubai Super 5000, a heavy-duty carabiner that is ideal for steel ropes. As soon as the load is lifted, the steel cable slides to the lowest point of the apex. As long as the load remains in place, the steel cable is securely fixed there. There is no more slipping!