Flender was established as a family-run company in Germany in 1910. The Flender plant in Siegen is situated in the heart of Europe in one of Germany’s most traditional steel-working regions. As a flexible and efficient medium-sized company, Flender provides its customers with innovative solutions in premium quality.

Our current range of services includes the manufacture of HFI longitudinally welded steel pipes of various types, which we produce on five state-of-the-art pipe-welding lines. Round pipes and precision tubes made from proven qualities of carbon steel as well as standard and special profiled tubes manufactured from carbon steel and ferritic stainless steel grades are both integral parts of our production range.

Flender-Flex-Tubing® – tubes from the roll, also known as coiled tubing, is one of the company’s specialities. Depending on the tube diameter, between 2,000 and 4,100 metres of steel tubing can be continuously coiled on a roll without needing a single weld and tested under water pressure for tightness in one fell swoop. Flender also provides a three-layer-system (FR-3L) as corrosion protection for steel line pipes with a plastic coating of polyethylene (PE) or polypropylene (PP).