Duplex 2205 pipe is a popular choice for various industrial applications, including chemical processing, oil and gas, marine, and many others. It's a reliable and cost-effective option for transporting fluids or gases in corrosive environments.

Duplex 2205 Corrosion Resistance

2205 duplex stainless steel pipe is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.

The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments.

Duplex 2205 pipe Chemical Composition, %

What are the characteristics of Duplex 2205 stainless steel pipe?

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  High resistance to chloride stress corrosion cracking

  
  

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  Resistance to chloride pitting and crevice corrosion

  
  

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  Good general corrosion resistance

  
  

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  Good sulfide stress corrosion resistance

  
  

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  High Strength

  
  

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  Good weldability and workability

  
  

ASTM Specifications

Duplex UNS S32205 Mechanical Properties

In what applications is Duplex 2205 pipe used?

Chemical process vessels, piping and heat exchangers

Pulp mill digesters, bleach washers, chip pre-steaming vessels

Food processing equipment

Oil field piping and heat exchangers

Flue gas desulfurization equipment