Duplex & Super Duplex Steel Round Bar

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:

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