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Stainless Steel 321 Pipes | ASTM A312 TP321 Seamless, Welded & ERW Pipe Manufacturer in India

 

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DIN 1.4541 Stainless Steel 321 Welded Pipe

Stainless Steel 321 Pipes are titanium-stabilized austenitic stainless steel pipes designed for excellent resistance to intergranular corrosion and oxidation at elevated temperatures. Manufactured according to ASTM A312 TP321 Stainless Steel Pipes and ASME SA312 TP 321 Pipe specifications, these pipes are widely used in petrochemical plants, refineries, heat exchangers, power generation, chemical processing, aerospace, and high-temperature industrial applications. Available in seamless, welded, ERW, EFW, and Schedule 40 configurations, they provide outstanding weldability, strength, and long service life.

Detailed Information

Stainless Steel 321 Pipes Supplier, Manufacturer & Exporter

We are a trusted supplier and exporter of premium-quality Stainless Steel 321 Pipes manufactured to meet international quality standards. As a reliable 321 Stainless Steel Pipe Manufacturer in India, we offer an extensive range of seamless, welded, ERW, and EFW pipes suitable for demanding industrial environments.

Our products are manufactured using high-grade raw materials and undergo rigorous quality inspections to ensure dimensional accuracy, superior corrosion resistance, and long service life. Whether your project requires ASTM A312 TP321 Stainless Steel Pipes, UNS S32100 Seamless Pipe, or DIN 1.4541 Stainless Steel Pipe, we deliver products that comply with global industry specifications.

We maintain ready stock for standard sizes while also supplying customized pipe dimensions, wall thicknesses, and lengths according to project requirements.

What are ASTM A312 TP321 Stainless Steel Pipes?

ASTM A312 TP321 Stainless Steel Pipes are titanium-stabilized chromium-nickel stainless steel pipes developed to withstand high-temperature environments without carbide precipitation during welding. The titanium addition improves resistance to intergranular corrosion, making these pipes an excellent choice for continuous service temperatures up to approximately 870°C.

Common equivalent grades include:

  • ASTM A312 TP321
  • ASME SA312 TP 321 Pipe
  • UNS S32100 Seamless Pipe
  • DIN 1.4541 Stainless Steel Pipe

These pipes are extensively used where welding operations and elevated temperatures are involved.

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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.

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Stainless Steel 321 Welded Pipes Specifications :

Specification

Details

Material Grade

Stainless Steel 321

Standard

ASTM A312 / ASME SA312

Grade

TP321

UNS Number

UNS S32100

DIN

1.4541

Manufacturing

Seamless, Welded, ERW, EFW

Size Range

1/8″ NB to 48″ NB

Wall Thickness

SCH 5 to SCH XXS

Pipe Schedule

SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS

Length

Single Random, Double Random, Cut Length

End Type

Plain End, Beveled End, Threaded

Surface Finish

Annealed, Pickled, Bright Annealed, Polished

Stainless Steel 321 Welded Pipes Chemical Composition

Grade C Mn Si S Cu Fe Ni Cr Al Ti
800 0.10 max 1.50 max 1.00 max 0.015 max 0.75 max 39.50 min 30.00 – 35.00 19.00 – 23.00 0.15 – 0.60 0.15 – 0.60

ASTM A 312 Stainless Steel 321 Pipes Grade Specifications

STANDARD WERKSTOFF NR. UNS
SS 321 1.4541 S32100

Stainless Steel 321 Pipes Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
321 515 205 40% 217

Physical Properties of Stainless Steel 321 Pipe

Grade Density

(kg/m3)

Elastic Modulus

(GPa)

Mean Co-eff of Thermal Expansion (µm/m/°C) Thermal Conductivity

(W/m.K)

Specific Heat 0-100°C

(J/kg.K)

Elec Resistivity

(nΩ.m)

0-100°C 0-315°C 0-538°C At 100°C At 500°C
321 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

Types of Stainless Steel 321 Pipes

Stainless Steel 321 Welded Pipes TP 321 SS Rectangular Welded Pipe
321 Stainless Steel Round Pipes Stainless Steel 321 Square Pipe
SS 321 Seamless Round Pipes 321 SS Square Seamless Pipes
321 Stainless Steel Rectangular Pipes 321 Austenitic Stainless Steel Pipes
321 SS Electropolished Pipes Stainless Steel 321 Cold Drawn Seamless Pipes
321 High-Temperature Stainless Steel Pipes SS 321 Pipes
Stainless Steel 321 Pipes 321 Stainless Steel Piping

Types of Stainless Steel 321 Pipes

Our product range includes:

  • 321 Stainless Steel Seamless Pipe
  • SS 321 Welded Pipe Stockist
  • SS 321 ERW / EFW Pipes
  • Schedule 40 SS 321 Pipe
  • SS 321 Thick Wall Seamless Pipe
  • ASTM A312 TP321 Pipe
  • ASME SA312 TP321 Pipe
  • UNS S32100 Pipe
  • Round Pipes
  • Large Diameter Pipes
  • Custom Cut Length Pipes
  • Polished & Pickled Pipes

Applications of ASTM A312 TP321 Stainless Steel Pipes

The excellent thermal stability of ASTM A312 TP321 Stainless Steel Pipes makes them suitable for numerous industries.

Common applications include:

  • Oil & Gas Industry
  • Petrochemical Plants
  • Chemical Processing
  • Refineries
  • Fertilizer Plants
  • Heat Exchangers
  • Pressure Vessels
  • Power Generation
  • Aerospace Industry
  • Pharmaceutical Industry
  • Food Processing
  • Paper & Pulp Plants
  • Marine Engineering
  • Water Treatment Facilities
  • Industrial Boilers

Why Choose Us as Your SS 321 Seamless Pipe Supplier?

As an experienced SS 321 Seamless Pipe Supplier and Stainless Steel 321 Pipes Exporter, we focus on supplying products that meet international quality expectations while ensuring competitive pricing and dependable service.

Our advantages include:

  • Premium quality raw materials
  • Complete material traceability
  • Third-party inspection available
  • Mill Test Certificates (MTC EN 10204 3.1)
  • Fast worldwide delivery
  • Large ready stock
  • Custom sizes and wall thickness
  • Competitive pricing
  • Export-grade packaging
  • Technical assistance before and after purchase

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