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UNS S31803 Duplex Pipe

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UNS S31803 Duplex Pipe Manufacturer, Supplier in India

Detailed Information

We are a trusted Duplex Steel UNS S31803 Pipe Manufacturer In India, delivering high-performance piping solutions engineered for demanding industrial environments. Our range of UNS S31803 duplex pipe products combines superior strength, excellent corrosion resistance, and long service life, making them ideal for critical applications across oil & gas, petrochemical, marine, and chemical industries.

As a leading supplier, we offer ASTM A790 Duplex Steel S31803 Pipes, including both seamless and welded variants, manufactured to international quality standards. With years of hands-on experience, we ensure that every pipe we supply meets strict industry requirements and real-world performance expectations.

What is UNS S31803 Duplex Pipe?
UNS S31803 duplex pipe is a stainless steel pipe made from duplex grade material that contains a balanced microstructure of austenite and ferrite. It offers high strength, excellent resistance to corrosion, stress corrosion cracking, and pitting, making it ideal for harsh industrial environments such as offshore, chemical processing, and marine applications.

What is Duplex Steel UNS S31803 Pipe?

Duplex Steel UNS S31803 Pipe, also known as Duplex Steel 1.4462 Pipe, is a widely used duplex stainless steel grade that provides a combination of austenitic and ferritic properties. This dual-phase structure results in:

  • Higher strength than standard stainless steels
  • Superior resistance to chloride stress corrosion cracking
  • Excellent resistance to pitting and crevice corrosion
  • Enhanced durability in aggressive environments

We manufacture and supply ASME SA790 Duplex Stainless Steel S31803 Pipes that meet stringent quality and performance benchmarks, ensuring reliability in the most demanding conditions.

Key Features of UNS S31803 Duplex Pipe

Our Duplex Steel 1.4462 Pipes Suppliers ensure products that deliver:

  • Excellent corrosion resistance in chloride environments
  • High mechanical strength (almost twice that of austenitic stainless steel)
  • Resistance to stress corrosion cracking
  • Good weldability and fabrication properties
  • Long operational lifespan in harsh conditions

Cities We Delivered

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.

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Duplex Steel 1.4462 Pipe Specifications

Specification

Details

Standard

ASTM A790 / ASME SA790

Grade

UNS S31803 / 1.4462

Type

Seamless / Welded

Size

1/2” NB to 24” NB

Thickness

SCH 10 to SCH XXS

Form

Round, Square, Rectangular

Length

Single Random, Double Random, Custom

Chemical Composition of UNS S31803 Duplex Pipe

Element

Composition (%)

Chromium (Cr)

21.0 – 23.0

Nickel (Ni)

4.5 – 6.5

Molybdenum (Mo)

2.5 – 3.5

Nitrogen (N)

0.08 – 0.20

Carbon (C)

≤ 0.03

Mechanical Properties of Duplex Steel S31803 Pipes

Property

Value

Tensile Strength

620 MPa (min)

Yield Strength

450 MPa (min)

Elongation

25%

Hardness

≤ 293 HB

Types of Duplex Steel S31803 Pipes We Offer

We supply a complete range of Duplex Steel S31803 Pipes, tailored to meet diverse industrial requirements:

Duplex Steel S31803 Seamless Pipes Manufacturer in India

Our Duplex UNS S31803 Seamless Pipes are produced without welding seams, ensuring:

  • High pressure resistance
  • Uniform strength
  • Superior corrosion resistance

Ideal for critical applications like oil & gas pipelines and heat exchangers.

Duplex Steel S31803 Welded Pipes

We also offer Duplex Steel S31803 Welded Pipes, manufactured using advanced welding techniques:

  • Cost-effective solution
  • Suitable for low to medium pressure systems
  • Available in large diameters

ASTM A790 Duplex Steel S31803 Pipes

Our pipes conform to ASTM A790 Duplex Steel S31803 Pipes standards, ensuring:

  • High-quality raw materials
  • Strict dimensional accuracy
  • Reliable mechanical properties

Applications of Duplex Steel UNS S31803 Pipes

Our pipes are widely used across industries due to their durability and performance:

  • Oil & Gas Processing Plants
  • Offshore Platforms
  • Chemical Processing Industries
  • Marine and Shipbuilding
  • Heat Exchangers and Pressure Vessels
  • Desalination Plants
  • Power Generation

Why Choose Us as Your Duplex Steel UNS S31803 Pipe Manufacturer In India?

We are not just suppliers—we are industry specialists with real-world experience in delivering high-performance piping solutions.

Our Strengths

  • Extensive inventory of ASME SA790 Duplex Stainless Steel S31803 Pipes
  • Strict quality control and testing procedures
  • Competitive pricing and timely delivery
  • Custom sizes and specifications available
  • Global export capabilities

Our expertise ensures that you receive products that perform reliably under actual operating conditions—not just on paper.

Quality Assurance & Testing

We follow rigorous testing standards to ensure top-notch quality:

  • Hydrostatic Testing
  • Ultrasonic Testing
  • Radiography Testing
  • PMI (Positive Material Identification)
  • Mechanical Testing

Each UNS S31803 duplex pipe is tested to meet international quality standards before dispatch.

Packaging & Delivery

We ensure safe and secure packaging for all orders:

  • Wooden boxes and crates
  • Plastic end caps
  • Anti-rust coating
  • Custom packaging options

We offer fast and reliable delivery across India and worldwide.

Industries We Serve

Our Duplex Steel S31803 Pipes are trusted by industries such as:

  • Petrochemical
  • Fertilizer
  • Oil & Gas
  • Marine Engineering
  • Power Plants
  • Pharmaceutical

Related Products

  • Stainless Steel Pipes
  • Duplex Steel Pipes
  • ASTM A790 Pipes
  • Seamless Pipes
  • Welded Pipes

If you are looking for a reliable Duplex Steel UNS S31803 Pipe Manufacturer In India, we offer the perfect combination of quality, performance, and value. Our wide range of ASTM A790 Duplex Steel S31803 Pipes, including seamless and welded options, ensures that we meet every industrial requirement with precision.

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