Copper Tube Expansion

Multiform Tubes is a company that has been specialising in tubing alterations for years. Our skills include copper tube expansion as well as many other options. Thanks to our talents, we are able to offer clients the perfect products for their applications. Many have been so happy that they come back to us every time they need a service and recommend us to others.

Why copper specifically?

Copper Tube ExpansionAt this point, you may be wondering what makes copper so special. The characteristics are nothing short of spectacular. For one thing, the material scores incredibly low in regards to reactivity. This leads to a decent degree of corrosion resistance.

Another fact about copper is that you can merge it with other substances easily to produce all sorts of extra alloys. Brass and bronze would not exist without it.

Copper also possesses some similar attributes to stainless steel. For instance, it hardens the more people work on it. This is important to keep in mind if you plan on adapting the tubing, whether it is copper tube expansion, bending, or any other service.

Expanding copper tubes

For expansion to be successful when dealing with copper tubing, we must use specialist techniques. The goal is to open the tube end up to enable users to use the tubes in all sorts of ways. In addition, they can get a leak proof, snug fit onto other tubes, fittings and fixtures.

In order to achieve the best results, we can use one of two methods of copper tube expansion.

Ram forming

To begin with, there is ram forming expansion. This approach makes use of a dedicated, tapered die. It functions as a mould. Large amounts of pressure forces the die into the tube’s end section. Following this, it retracts out. This expands the tube end. Each die is an established, formed diameter and size. What this means is that it is only capable of offering particular diameters for certain tubes.


As for the next method, you need to use a hydraulic expanding die. This is segmented with finger style segments that can expand to numerous lengths and diameters. These dies provide far more flexibility with range and size. As a result you are able to open the hydraulic die as little or as much as you desire. The resulting measurements are far more specific. It is possible to carry out expansion on the majority of metals. You can expand them up to 5/6 mm in thickness and 150/160 mm in diameter.

Talk to us about copper tube expansion

Multiform Tubes is well aware of all the outstanding properties copper has to offer. Therefore we know why it is great for tubing for various applications. We also know how to work with it to offer the best bespoke products.

Contact us if you would like our help with copper tube expansion or any other alteration. You can rely on us to offer the best service for your money.