Outokumpu is delivering 600 tonnes of Forta LDX2404 duplex stainless steel for renovating the Söderströmsbron in Stockholm, Sweden. The bridge complex, connecting Stockholm Old town to the Södermalm district, consists of four railway bridges that need to be renovated.
The bridges are being repaired for safer travel and higher traffic volumes in the future. Old bridge beams underneath the rails are being replaced by a stainless steel structure within a timeline of two years in 2017–2018. The tracks make it possible for the subway trains to change to other tracks between the red and green lines in central Stockholm.
The Stockholm County Council chose LDX404 duplex stainless steel due to the material’s unique characteristics. Rapidly growing cities need solid infrastructure to manage the increasing population and stainless steel offers a good solution as it minimizes the need for disruptive maintenance work, and corrosion problems.
Outokumpu delivers ready-made beam trusses to the renovation project from its production unit in Degerfors, Sweden. Outokumpu’s partner Stål&Rörmontage AB then fabricates the final bridge components and installs them onsite.