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Duplex & Super Duplex Steel Round Bar

Duplex Steel,Duplex Steel pipes, Duplex Steel Tubes, Duplex Steel Pipe Fittings, Duplex Steel Forged Fittings, Duplex Steel Flanges, Duplex Steel Round Bar, Duplex Steel Plates, Duplex Steel Fasteners, UNS S32205 Duplex Stainless Steel , UNS S32750 Super Duplex Stainless Steel, UNS S32760 Super Duplex Steel , ZERON 100 , Lean Duplex Steel Plates, UNS S31803 Duplex Steel


Duplex Steel Round Bar, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These Round Bars have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steel Round Bar offer good resistance to local and uniform corrosion. Duplex Steel Round Bar have good weldability.
Today, modern duplex stainless steels can be divided into three groups:

  • Lean Duplex Steel Plate such as LDX2101
  • Standard Duplex Round Bar such as 2205 (UNS S31803/S32205), the work-horse grade accounting for more than 80% of duplex usage
  • Super Duplex Round Bar such as Ferralium 255, Zeron 100 and 2507

Of the duplex grades, Duplex Steel Round Bar UNS S32750/S32760 is the most widely used. However, the super duplex steel Round Bar like Zeron® 100 and 2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications.  Lean Duplex Plate 2101 is available as an economic alternative to 300 series stainless steels.

What are the Characteristics of Duplex Steel Round bar?

  • Very good resistance to uniform corrosion
  • Very good resistance to pitting and crevice corrosion
  • High resistance to stress corrosion cracking and corrosion fatigue
  • High mechanical strength
  • Good sulfide stress corrosion resistance
  • Good abrasion and erosion resistance
  • Good fatigue resistance high energy absorption
  • Low thermal expansion
  • Good weldability

In what Applications are Duplex Steel Round bar used?

Oil and gas equipment

  • Offshore technology
  • Seawater desalination plants
  • Chemical industry, especially when handling chlorides
  • Flue-gas cleaning
  • Desalination plants and seawater systems
  • Pulp and paper industry
  • Cargo tanks and pipe systems in chemical tankers
  • Firewalls and blast walls on offshore platforms
  • Bridges
  • Storage tanks
  • Pressure vessels, reactor tanks, and heat exchangers
  • Rotors, impellers and shafts

Duplex Steel Bar:

Range :
10 mm To 100 mm Dia in 100 mm TO 6000 mm Length.
Finish : Bright Black Polish
Form : Round Square Hex (A/F) Bush  Rectangle Flat

Duplex Steel Bar

Astm a276 UNS S31803, S32205, S32750, S32760




Duplex Steel Forged Bar:

Range :
10 mm To 100 mm Dia in 100 mm TO 6000 mm Length.
Finish : Bright BlackPolish
Form : Round Square Hex (A/F) Bush  Rectangle Flat

Duplex Steel Forged Bar

Astm a276 UNS S31803, S32205, S32750, S32760


Duplex steel Bars
Round Bar
Bright Bar
Polish Bar
Black Round Bar
Forged Bar
Forged Round Bar
Hex Bar
Forged Hex Bar
Flat Bar


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