Impas - The Perfect Fit


IMPAS has extensive experience and expertise in the area of cunifer piping. The material is always of the highest possible quality, and is produced and processed by our own specialists.

More about cunifer

CuNifer is an alloy of copper (CU), nickel (Ni) and iron (Fe). This makes piping made from this material resistant to corrosion and seawater. It does not require any protective treatment because issues such as shellfish growth hardly ever occur with cunifer piping. This also saves you on material maintenance.


The most common composition of cunifer is CUNIFER 90-10. This contains mostly copper (90%) and nickel (10%) and that is also the alloy that we use at IMPAS. In our workshops, we use tubes and fittings to make complete pipe sections. We use a variation on bend dies to bend the pipe sections. Our range of bend solutions is extensive.

For welding, we have certified welders in-house. IMPAS is one of just a few companies with the required WPQR (Welding Procedure Qualification Record) and WPS (Welding Procedure Specification) for cunifer. They are qualified to perform welding work, and fulfil the regulations set out in European standard EN ISO 9606-3 and US standard ASME-IX. This means that our welders are certified to weld pipes with a variety of diameters and wall thicknesses. Whatever your job, our welders have got you covered.


Cunifer is often used in the maritime sector. Not only it is resistant to seawater, but it is also lightweight. This is vital in the shipbuilding sector, which accounts for a large proportion of our cunifer piping orders. You can find our cunifer piping on ships in the bilge system, because that is where most of the dirty water is collected. Our cunifer piping also enjoys numerous applications in FiFi (firefighting) systems and seawater cooling systems.


Interested in learning what else our cunifer can do for you? If so, please contact us.