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2507 (F53) UN S32750 Super Duplex Stainless Steel Solid Round Bar DIN 1.4410

Categories Stainless Steel Round Bar
Model Number: S32750
Certification: ISO ,SGS
Place of Origin: China Wuxi
MOQ: 3 tons
Price: 5650 USD/Ton
Payment Terms: L/C, T/T
Supply Ability: 200Tons
Delivery Time: 10 Days
Packaging Details: Export Packing
OD: 8-300mm
Length: 1-6m
Surface: Black and Bright
Condition: Soild
Materail: Prime
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    2507 (F53) UN S32750 Super Duplex Stainless Steel Solid Round Bar DIN 1.4410

    Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.

    The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).

    Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle 2205 stainless.

    Corrosion Resistance

    2205 duplex stainless steel 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.

    Chemical Composition, %






    22.0-23.04.50-6.503.00-3.50.030 Max0.14-0.20






    2.00 Max1.00 Max.030 Max.020 MaxBalance

    In what applications is Duplex 2205 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

    ASTM Specifications

    Pipe Smls

    Pipe Welded

    Tube Smls

    Tube Welded



    Flanges, Fittings & Valves


    Mechanical Properties
    Specified Tensile Properties ASTM A240

    Ultimate Tensile Strength, ksi Minimum

    .2% Yield Strength, ksi Minimum

    Hardness Max.

    956531 Rockwell C

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