Owners want their structural systems to perform better over longer periods of time in environmental conditions which have proven to be excessively harsh for conventional reinforcement steel options.

Stainless steel plays an important role from both sustainability and cost-effectiveness perspectives. Keeping reinforced concrete infrastructure in good condition is even more critical when the design service life is extensive (over 50 years), or if the structure is exposed to increased risk of corrosion.

Austenitic stainless steels are the most common due to their high corrosion resistance and ductility (the ability to be drawn). These grades contain at least 18% chromium and 8% nickel. The addition of molybdenum increases the resistance to corrosion.

Duplex stainless steels offer even higher mechanical strength. Their high chromium content and lower amounts of nickel and molybdenum create an excellent balance between corrosion resistance, economic value, and price stability.

Applications

• Coastal and marine structures (piers, docks, and coastal buildings)
• Bridges and highways
• Barrier and retaining walls
• High-rise buildings
• Industrial facilities
• Water treatment and nuclear waste plants