Duplex Steel Plate 31803

Duplex Steel Plate 31803
Duplex Steel Plate 31803
Price And Quantity
  • 100
  • Kilograms/Kilograms
  • 55.00 - 450.00 INR
Product Specifications
  • Steel Products
  • Alloy Steel
  • Steel Plates
  • 4-150 Millimeter (mm)
  • Plate
  • Galvanized
  • Construction
  • White
    Product Description

    Duplex Steel Plate 31803

    Duplex 31803 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 31803 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 31803 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 31803 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 31803 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle 31803 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 31803 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, %

    Cr

    Ni

    Mo

    C

    N

    22.0-23.0

    4.50-6.50

    3.00-3.50

    .030 Max

    0.14-0.20

    Mn

    Si

    P

    S

    Fe

    2.00 Max

    1.00 Max

    .030 Max

    .020 Max

    Balance

    Characteristics of Duplex 31803

    • 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 of Duplex 31803

    • 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

    Sheet/Plate

    Bar

    Flanges, Fittings & Valves

    A790

    A790

    A789

    A789

    A240

    A276

    A182

    Mechanical Properties
    Specified Tensile Properties ASTM A240


    Ultimate Tensile Strength, ksi Minimum

    .2% Yield Strength, ksi Minimum

    Hardness Max.

    95

    65

    31 Rockwell C

    EQUIVALENT OF DUPLEX 31803 :

    COUNTRY

    USA

    USA


    FRANCE

    EUROPEAN


    JAPAN

    STANDARDS

    ASTM

    UNS

    NACE

    AFNOR

    EN

    ISO

    JIS

    GRADE

    A182

    A240

    A276

    A789

    A790

    A815

    S31803

    S32205

    MR0175

    Z3CrNi 22.05 AZ

    1.4462

    4462-318-03-I

    SUS 329J3L


    COUNTRY

    SWEDEN

    CHINA

    KOREA

    GERMANY

    USA

    STANDARDS

    SS

    GB

    KS

    DIN

    AISI

    GRADE

    2377

    00Cr22Ni5Mo3N

    STS 329J3L

    X2CrNiMoN22.5.3

    F51/ F60 (A182)


    COUNTRY

    STANDARDS

    BS (WROUGHT)

    SS (CAST)

    GRADE

    318S13

    332C15



    Trade Information
    • Cheque
    • 1000 KG Per Day
    • 3-4 Week
    • Yes
    • Sample costs shipping and taxes has to be paid by the buyer
    • Africa, Middle East, Western Europe, Eastern Europe, South America, North America, Central America, Australia, Asia
    • All India
    Contact Us

    Shreepati Castel , 10/11 1st Floor, Wing D-1 11 Khetwadi, Mumbai, Maharashtra, 400004, India
    Phone :91-22-23894572/67496094/67496097