ISO 9001:2015 Certified · CRISIL Rated · PED Certified · Trusted Global Exporter
309 Stainlesss Steel Welded Pipe Manufacturer

Siddhagiri Metals and Tubes is a leading supplier and stockist of Stainless Steel 309 Welded Pipes. We stock a comprehensive range of ASTM A312 TP309 Pipes in all sizes and dimensions.
Other Names: ASTM A312 TP309, Steel Pipe, 309 Stainlesss Steel Pipe, 309 Steel Pipe, 309 Stainless Pipe, 309 Welded Pipe, 309 SS Welded Pipe, ASTM A312, Stainlesss Steel Welded Pipe
Material: SS309, AISI 309, SUS309, INOX 309, Stainlesss Steel 309
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 4.0/5 based on 59 customer reviews

AISI 309 Stainlesss Steel Welded Pipe Supplier · ASTM A312 TP309 · Steel Pipe

Stainless Steel 309 Welded Pipe of premium quality is supplied by Siddhagiri Metals and Tubes as per ASTM A312 TP309. We also provide value-added services to meet your unique needs, including custom-lengths, cut and strip, custom labels, striping, printing, and more. We take pride in personal customer service, starting with a real person answering your calls and an individual representative working with you one-on-one to meet your pricing and delivery needs. Our entire range of product is tested on various parameters in order to deliver best quality output.

Welded Pipes are of two types ERW and EFW. A process for producing welded pipe is Electric Resistance Welding (ERW) also known as Contact Welding. Processing of Electric Fusion Welding, also called Continuous Welding begins as coiled steel with appropriate thickness, width and weight is made. 309 Welded Pipes are available in a wide range of sizes and properties. Due to the weld seam, lower operating pressures are stated in accordance with ASME compared to seamless pipes. In general Stainlesss Steel welded pipe possess tighter dimensional tolerances than seamless pipes and are less costly if produced in same quantities. 309 SS Welded Pipe sizes range from 1/8" to 48" inches and the thickness of the pipes are as follows: Sch 5, Sch 5s, Sch 10, Sch 10s, Sch 20, Sch 30, Sch 40s, Sch 40, Sch STD, Sch 60, Sch 80s, Sch 100, Sch 120, Sch XS, Sch XXS, Sch 160. The Stainlesss Steel pipe is manufactured and finished according to dimension standards such as ANSI B36.10 and ANSI B36.19.

Siddhagiri Metals and Tubes is a leading supplier of 309 welded pipes providing an extensive selection of all grades and dimensions to the oil and gas, petrochemical, chemical and power industries. We work closely together with certified pipe manufacturers from around the world and have a huge range of different welded pipes constantly on stock ranging from Electric Resistance Welded (ERW) Pipes, Fusion Welded (EFW) Pipes to Double Submerged Arc Welded (DSAW) Pipes. We have a huge inventory of Stainless Steel Welded pipes in different sizes and dimensions ranging from 1/8" to 16" inches in size and Sch 5, Sch 5s, Sch 10, Sch 10s, Sch 20, Sch 30, Sch 40s, Sch 40, Sch STD, Sch 60, Sch 80s, Sch 100, Sch 120, Sch XS, Sch XXS, Sch 160 in thickness. Siddhagiri Metals and Tubes is one of the major manufacturers of welded 309 pipes for applications in oil and gas, LNG, Petro-chemical, shipbuilding, desalination, water treatment and energy industries.

We are engaged in offering wide range of ASTM A312 welded pipes in Stainless Steel, Duplex Steel, Nickel Alloy, Copper and Alloy Steel material. We also specialize in supplying SS 309 Welded Pipes. We have a huge stock of piping materials with applications in industries such as Medicine, Chemical, Oil and Gas etc. We have an inventory of pipes of Indian, European and Japanese origin. Our comapany has bagged an ISO 9001:2015 certification for the excellence in the quality of our products.

All our 309SS Pipes conform to international standards and are manufactured according to ASTM, ASME, DIN, ANSI, EN, WERKSTOFFE, JIS, BS standards. Each piece of pipe is fully tested by professionals according to international standards. Few of the major brands we represent are Nippon, Sumitomo, Outokumpu, Sandvik, etc. We are Saudi ARAMCO approved vendors of Stainlesss Steel 309 pipes. We export in many major countries which include UAE, Saudi Arabia, Russia, Iran, Indonesia, Chile, Germany, Australia, USA, Europe, Brazil, South Africa and many more.

  • Pipe Specification: ASTM A312 TP309, EN 1.4828
  • Dimension Standard: ANSI B36.19, B36.19M ANSI B36.10
  • Outside Diameter (OD): 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size pipes available Ex-stock
  • Thickness Range: 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS
  • Type: 309 Welded Pipe, 309 EFW Pipes, 309 ERW Pipes
  • Form: 309 Round Pipes, 309 Square Pipes, 309 Rectangular Pipe
  • Length: Single Random, Double Random & Cut Length
  • End: Plain End, Beveled End, Threaded
  • End Protection: Plastic CapsOutside Finish: 2B, No.1, No.4, No.8 Mirror Finish
  • Delivery Condition: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
  • External Coating: 3LPE / 3LPP/ FBE/ DFBE/ PP
  • Origin: Indian Origin, European Origin, Japanese Origin
  • Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
  • Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

AISI 309 Welded Pipe Sizes in Stock

Pipe Form Size Range Thickness Dimension Standards
309SS Welded Pipe, 309SS ERW Pipe, 309SS EFW Pipes 1/8" to 48" inches SCH 5, SCH 5S, SCH 10, SCH 10S, SCH 20, SCH 30, SCH 40S, SCH 40, SCH STD, SCH 60, SCH 80S, SCH 100, SCH 120, SCH XS, SCH XXS, SCH 160 ANSI B36.10, ANSI B36.19M

Forms of INOX 309 in Stock

In Stock Square Pipe Manufacturer

SS309 Square Pipe

Stainlesss Steel Square Pipes available in ASTM A312 TP309 SCH 5 to XXS

In Stock Round Pipe Manufacturer

SS309 Round Pipe

Stainlesss Steel Round Pipes available in sizes 1/4 to 16" in ASTM A312 TP309

In Stock Rectangular Pipe Manufacturer

SS309 Rectangular Pipe

Stainlesss Steel Rectangular Pipes available in ASTM A312

  • Chemical Properties
  • Mechanical Properties
  • Physical Properties
  • C Ni Mn P S Si Cr
    MIN - - - - - - -
    MAX 0.200 14.000 2.000 0.045 0.030 1.000 23.000
  • Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HRB)
    MIN 310 620 45.00  
    MAX       85
  • Density lb/in³ 0.285
    Melting Range °F 2650
    °C 1455

Properties of AISI 309 Stainlesss Steel

309 SS Cold Forming

The alloy is quite ductile and forms in a manner very similar to 316. Cold forming of pieces with long-term exposure to high temperatures is not recommended since the alloy is subject to carbide precipitation and sigma phase precipitants.

309 SS Hot Forming

Heat uniformly at 1742 – 2192°F (950 – 1200°C). After hot forming a final anneal at 1832 – 2101°F (1000 – 1150°C) followed by rapid quenching is recommended.

309 SS Welding

Alloy 309 can be readily welded by most standard processes including TIG, PLASMA, MIG, SMAW, SAW and FCAW.

Services We Offer

Documentation

Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.

Quality Assurance

Stainlesss Steel Pipes are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.

Material Testing

PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

Packing and Delivery

The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.

Let Us Know What YOU Need

We Cherish All Your Requirements