HIGH STRENGTH FOR DEMANDING APPLICATIONS

Duplex and Lean Duplex stainless steel tubes

The increasing use of stainless steel hollow sections in load-bearing structures has created a demand for more high strength stainless steels. Duplex and Lean Duplex answer to the most demanding needs by offering a superior combination of high strength, corrosion resistance and lowered life cycle costs. When weight matters or the environment poses a challenge, light, extremely durable and maintenance-free Duplex and Lean Duplex structural hollow sections are the ideal solution.

From light-weight bus bodies to the highly corrosive and rough conditions of oil and gas platforms far out at the sea, Duplex and Lean Duplex offer freedom from maintenance needs, lower transportation and assembly costs and a smaller environmental footprint. Their improved stress corrosion cracking resistance and steady price level over time due to low nickel content are also qualities that various industries benefit from – including the process industries and the building and construction industry.

Stalatube was one of the first companies on the market to start producing Duplex and Lean Duplex hollow sections. Our expertise in them dates back over a decade and our core strength is tailoring solutions for our customers. Tailoring options include custom made dimensions, cut to length, laser cutting, surface finishes, specialty Duplex and Lean Duplex steel grades and ready-to-assemble kit packages.

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AVAILABLE DIMENSIONS

Roll formed hollow sections
Metric: from 25x25x1.5 mm to 300x300x8 mm / 400x200x8 mm
Imperial: from 12 x 12 x 0.XXX inch / 16 x 8 x 0.XXX inch

Stalargo™ press brake hollow sections up to
Metric: 500x500x20 mm / 1000x1000x10 mm
Imperial: 10 x 10 x 1.250 inch / 20 x 20 x 0.625 inch

Duplex steel application, an offshore oil rig

DUPLEX & LEAN DUPLEX HOLLOW SECTION SPECIFICATIONS

  • Stainless steel material grades
    • EN 1.4062 (X2CrNiN22-2),
    • EN 1.4162 (S32101),
    • EN 1.4362 (S32304/X2CrNiN23-4),
    • EN 1.4462 (S31803/X2CrNiMoN22-5-3).
  • Enhanced strength class Stala 630D.
  • Standard length 6m.
  • Various tailoring solutions available.

Other material grades by request, please contact our sales for more information!

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Superior advantages of Lean Duplex and Duplex materials:

  • High strength enables lighter constructions
  • Excellent corrosion resistance
  • Improved stress corrosion cracking resistance
  • Steady price level year after year based on low nickel content (1-2%)

Data sheets

HOLLOW SECTIONS PRODUCT BROCHURE, METRIC

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HOLLOW SECTIONS PRODUCT BROCHURE, IMPERIAL

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