EN 10255

What is EN 10255?

EN 10255 is a European standard. It specifies the technical delivery conditions for steel tubes and fittings for the conveyance of water and other aqueous liquids.

EN 10255 covers both welded and seamless steel tubes, which are used in various applications. Such as water supply, plumbing, and heating systems.

EN 10255 provides requirements for the dimensions, mechanical properties, and testing of these tubes and fittings to ensure their suitability for water conveyance. That ensures compatibility with other system components.

Specification & Sizes

At UNIASEN, we recognize that every project has its unique requirements, and we offer a comprehensive range of dimensions for our EN 10255 Carbon Steel Pipes to cater to your specific needs. 

Our EN 10255 Carbon Steel Pipes come in a variety of thicknesses, including S355NLO up to 200 mm, S355MLO, S420MLO, S460MLO, S500MLO up to 120 mm, and S420QLO, S460QLO, S500QLO, S550QLO, S620QLO, S690QLO up to 150 mm.

For bespoke project requirements, we can provide thicker dimensions while adhering to the European Standard’s technical specifications. Our pipes are suitable not only for the North Sea Sector but also for other regions, given that local conditions are taken into account.

Mechanical Requirement

The mechanical properties of our EN 10255 Carbon Steel Pipes are designed to withstand the rigorous demands of offshore environments. These pipes feature minimum yield strengths up to 690 MPa, along with impact properties at temperatures down to -40 °C. 

We offer a range of surface coatings to improve corrosion resistance, and provide various end types and joint methods to match your specific application. Furthermore, we offer extensive machining services to ensure your pipes are ready for immediate installation upon delivery.