Duplex Steel 2202 Bar

Duplex 2202 bar or DX2202 bar, is an austenitic-ferritic stainless steel. It offers users general resistance to corrosion that is comparable to Type 304L. Some of the other key characteristics of Duplex 2202 include:

• Improved mechanical strength
• Service temperature range of -50 °C to 300°C
• Stress corrosion resistance that is often double other austenitic stainless steels
• Can be used in combination with nitric acid

Due to these and other benefits, Duplex 2202 bar is used in a wide variety of critical industrial application including:

• Construction applications such as crash barriers and footbridges
• Oil tanks
• Automotive structure
• Desalination
• Pulp and Paper tanks
• Juice tanks
• Drinking water systems

Corrosion Resistance

2202 duplex stainless steel bar 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 2202 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 2202 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments.

Characteristics

• High resistance to chloride stress corrosion cracking
• Resistance to chloride pitting and crevice corrosion
• Good general corrosion resistance
• Good sulfide stress corrosion resistance
• High Strength
• Good weldability and workability

Applications

• 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

Also see

• Duplex Steel 2205 Bar
• Duplex Steel 2304 Bar
• UNS S32760 Round Bar
• UNS S32750 Round Bar
• UNS S32205 Round Bar
• UNS S31803 Round Bar

Chemical Composition

Mechanical Properties

Calico Metal Alloys LLP exports their products to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

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