Duplex S31803 Pipes Manufacturer & Supplier


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    Detailed Information
    Duplex S31803 Pipes are harder and stronger than regular steel, but not as corrosive as stainless steel. ASTM A790 Duplex Steel S31803 Pipes is called Duplex because of its microstructure grouping with an equal amount of ferrite and austenite. The oxidation performance of this ASTM A789 Duplex Steel S31803 Tubes varies depending on its content. When melted, ASME SA 790 Duplex Steel S31803 Pipes solidifies from the liquid phase to a completely ferritic structure. About half of the ferritic grains in ASME SA789 Duplex Steel S31803 Seamless Tubing transform to austenitic grains (“islands”) as it cools to room temperature. As a result, the microstructure is roughly 50% austenite and 50% ferrite. They are in high demand when compared to other grades of 316 stainless steel because they are resistant to general and local corrosion such as oxidation and intergranular resistance, stress cracking corrosion, crevice corrosion, and pitting.
    When heated to temperatures above 300 degrees Celsius, the alloy becomes brittle. The properties of DUPLEX STEEL S31803 PIPE include high strength and weldability. This grade is neither entirely ferritin nor entirely austenitic. Low-temperature application is also not harmful to these Duplex steel pipes. This grade pipe is also known as the workhorse garden. The main advantage of this steel type is that it combines austenitic and ferritic steel properties to produce amazing results. The welded EFW and Fabricated DUPLEX STEEL S31803 PIPE types are available. The steel combines good mechanical strength and ductility with moderate to good corrosion resistance in a variety of environments. It is a two-phase substance. It has a high yield strength and is the most widely used nitrogen enhanced duplex stainless steel grade.

    Duplex steel S31803 pipe has high energy absorption, low thermal expansion, high wear resistance, low price for pitting and crevice corrosion resistance, high resistance to stress corrosion cracking and corrosion fatigue, good weldability, good resistance to crevice and pitting corrosion, higher mechanical strength, improved cost efficiency, support and added values, cost stability. The DUPLEX STEEL S31803 PIPE is used in a variety of industries, including the paper and pulp industry, power plants, water supply systems, heating, general-purpose applications, plumbing, the chemical industry, the oil and gas industry, the fabrication industry, the food processing industry, and so on. Following the testing process, the material is delivered to the clients.
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    New York City, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, San Jose, Austin, Jacksonville, Fort Worth, Columbus, Charlotte, San Francisco, Indianapolis, Seattle, Denver, Washington, Boston, El Paso, Nashville, Detroit, Oklahoma City, Portland, Las Vegas, Memphis, Louisville, Baltimore, Milwaukee, Albuquerque, Tucson, Fresno, Mesa, Sacramento, Atlanta, Kansas City, Colorado Springs, Omaha, Raleigh, Miami, Long Beach, Virginia Beach, Oakland, Minneapolis, Tulsa, Tampa, Arlington, New Orleans, Wichita, Bakersfield, Cleveland, Aurora, Anaheim, Honolulu, Santa Ana, Riverside, Corpus Christi, Lexington, Henderson, Stockton, Saint Paul, Cincinnati, St. Louis, Pittsburgh, Greensboro, Lincoln, Anchorage, Plano, Orlando, Irvine, Newark, Durham, Chula Vista, Toledo, Fort Wayne, St. Petersburg, Laredo, Jersey City, Chandler, Madison, Lubbock, Scottsdale, Reno, Buffalo, Gilbert, Glendale, North Las Vegas, Winston-Salem, Chesapeake, Norfolk, Fremont, Garland, Irving, Hialeah, Richmond, Boise, Spokane, Baton Rouge, Tacoma, San Bernardino, Modesto, Fontana, Des Moines, Moreno Valley, Santa Clarita, Fayetteville, Birmingham, Oxnard, Rochester, Port St. Lucie, Grand Rapids, Huntsville, Salt Lake City, Frisco, Yonkers, Amarillo, Glendale, Huntington Beach, McKinney, Montgomery, Augusta, Aurora, Akron, Little Rock, Tempe, Columbus, Overland Park, Grand Prairie, Tallahassee, Cape Coral, Mobile, Knoxville, Shreveport, Worcester, Ontario, Vancouver, Sioux Falls, Chattanooga, Brownsville, Fort Lauderdale, Providence, Newport News, Rancho Cucamonga, Santa Rosa, Peoria, Oceanside, Elk Grove, Salem, Pembroke Pines, Eugene, Garden Grove, Cary, Fort Collins, Corona, Springfield, Jackson, Alexandria, Hayward, Clarksville, Lakewood, Lancaster, Salinas, Palmdale, Hollywood, Springfield, Macon, Kansas City, Sunnyvale, Pomona, Killeen, Escondido, Pasadena, Naperville, Bellevue, Joliet, Murfreesboro, Midland, Rockford, Paterson, Savannah, Bridgeport, Torrance, McAllen, Syracuse, Surprise, Denton, Roseville, Thornton, Miramar, Pasadena, Mesquite, Olathe, Dayton, Carrollton, Waco, Orange, Fullerton, Charleston, West Valley City, Visalia, Hampton, Gainesville, Warren, Coral Springs, Cedar Rapids, Round Rock, Sterling Heights, Kent, Columbia, Santa Clara, New Haven, Stamford, Concord, Elizabeth, Athens, Thousand Oaks, Lafayette, Simi Valley, Topeka, Norman, Fargo, Wilmington, Abilene, Odessa, Columbia, Pearland, Victorville, Hartford, Vallejo, Allentown, Berkeley, Richardson, Arvada, Ann Arbor, Rochester, Cambridge, Sugar Land, Lansing, Evansville, College Station, Fairfield, Clearwater, Beaumont, Independence, Provo, West Jordan, Murrieta, Palm Bay, El Monte, Carlsbad, North Charleston, Temecula, Clovis, Springfield, Meridian, Westminster, Costa Mesa, High Point, Manchester, Pueblo, Lakeland, Pompano Beach, West Palm Beach, Antioch, Everett, Downey, Lowell, Centennial, Elgin, Richmond, Peoria, Broken Arrow, Miami Gardens, Billings, Jurupa Valley, Sandy Springs, Gresham, Lewisville, Hillsboro, Ventura, Greeley, Inglewood, Waterbury, League City, Santa Maria, Tyler, Davie, Lakewood, Daly City, Boulder, Allen, West Covina, Sparks, Wichita Falls, Green Bay, San Mateo, Norwalk, Rialto, Las Cruces, Chico, El Cajon, Burbank, South Bend, Renton, Vista, Davenport, Edinburg, Tuscaloosa, Carmel, Spokane Valley, San Angelo, Vacaville, Clinton, Bend, Woodbridge.

    Duplex S31803 Pipes Specifications

    Specifications: ASTM /ASME SA790/A790

    Dimensions: ASTM, ASME and API

    Schedule: SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS

    Wall Thickness: Schedule 5S – Schedule XXS.

    Size: 1/2″ NB – 24″ NB

    Length: Single Random, Double Random & Cut Length.

    Form: Round, Square, Rectangular, Hydraulic etc

    End: Plain End, Beveled End, Treaded

    Chemical Composition Of Duplex S31803 Pipes












    0.030 max

    2.00 max

    1.00 max

    0.030 max

    0.020 max

    22 – 23

    3.00 – 3.50

    4.5 – 6.5

    0.14 – 0.20

    63.72 min

    Mechanical Properties Of Duplex S31803 Pipes


    Melting point

    Tensile Strength

    Yield Strength


    7.805 g/cm3

    2588-2669 Deg F

    Psi – 116000,

    Mpa – 800

    Psi – 80000,

    Mpa – 550


    Equivalent Grades for Duplex S31803 Pipes









    DSS S31803



    Duplex S31803 Pipes Application Industries

    • Textile machinery
    • Oil and gas industry
    • Pulp and paper industry
    • Power plants
    • Energy industries
    • Furniture
    • Pharmaceutical processing industry
    • Modern architecture
    • Home appliances
    • Water waste projects
    • Synthetic fiber
    • Heat exchanger
    • Fluid piping
    • Dairy and food processing

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