Swedish specialty steelmaker SSAB has announced that it has supplied more than 3,000 mt of high-strength structural steel for the Kruunuvuori Bridge in Helsinki, one of the largest bridge projects ever undertaken in Finland.
The bridge structures are primarily built using SSAB Domex® high-strength steel, particularly the Domex 460ML grade, enabling lightweight yet highly durable construction designed to withstand harsh environmental conditions such as ice, snow, moisture and strong winds.
In total, around 6,300 mt of steel structures were used in the project, with SSAB accounting for over half of the supply.
The Kruunuvuori Bridge is approximately 1,200 meters long, with a central pylon rising 135 meters, making it the longest and tallest bridge in Finland. The bridge is designed primarily for pedestrians, cyclists and public transport, supporting Helsinki’s goals to reduce emissions and improve sustainable urban mobility.
Piles and foundation components also supplied
In addition to structural steel, SSAB supplied driven and drilled piles for the bridge foundations, totaling approximately 1,050 mt. The piles include diameters of 1,220 mm and 1,016 mm, with the longest drilled piles exceeding 40 meters in length and equipped with specially designed rock shoes.
Steel supports sustainability targets
According to the company, the use of high-strength steel contributed to material efficiency and reduced environmental impact through lighter structures and long service life.
SSAB stated that its steel has carbon emissions around 6% lower than the European average and up to 17 percent lower than the Chinese average, supporting the project’s climate objectives.
