0
  • DE
  • EN
  • FR
  • International Database and Gallery of Structures

Advertisement

Duplex stainless steels: sustainable materials for highly durable structures

 Duplex stainless steels: sustainable materials for highly durable structures
Author(s): ,
Presented at IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019, published in , pp. 1619-1626
DOI: 10.2749/newyork.2019.1619
Price: € 25.00 incl. VAT for PDF document  
ADD TO CART
Download preview file (PDF) 0.17 MB

Stainless steels are well known for their durability in the built environment, having been widely used in external building cladding, street furniture and public artworks; the 1930’s stainless stee...
Read more

Bibliographic Details

Author(s): (Outokumpu Stainless Ltd)
(Outokumpu Stainless AB)
Medium: conference paper
Language(s): English
Conference: IABSE Congress: The Evolving Metropolis, New York, NY, USA, 4-6 September 2019
Published in:
Page(s): 1619-1626 Total no. of pages: 8
Page(s): 1619-1626
Total no. of pages: 8
DOI: 10.2749/newyork.2019.1619
Abstract:

Stainless steels are well known for their durability in the built environment, having been widely used in external building cladding, street furniture and public artworks; the 1930’s stainless steel roof of the Chrysler Building is a fine example. Modern steelmaking techniques have facilitated the production of stainless steels with 85% recycled content and the production of high strength duplex stainless steels. High strength minimizes the weight of steel required and the inherent corrosion resistance means there is no need for additional corrosion protection even in aggressive coastal environments. These properties allow duplex steels to be efficiently used as durable structural engineering materials. The corrosion performance of several stainless steels, including a newly developed duplex grade LDX2404 (EN1.4662/UNS82441) has been studied in coastal atmospheric conditions. The performance of stainless steels under these test conditions is found to be similar to the performance in existing structural applications in comparable real-world environments. It is observed that the performance of a stainless steel grade can be adequately assessed in a given environment after only a few months or years, as the onset of any detrimental corrosion effects become visibly evident rather quickly. Appropriately selected grades of stainless steel for a given environment can be fully resistant to corrosion effects, and thus can be considered highly durable materials for bridges and other structural uses in the external environment.

Keywords:
durability corrosion high strength duplex stainless steel Long Life