Stainless Steel 309 (UNS S30900) Tubes

SS 309 Round Tube, Stainless Steel 309 Square Tube, Stainless Steel 309 Rectangle Tubes, ASTM A213 / A249 / A312 SS 309 Tube, SS DIN 1.4828 Welded Tubes, Stainless Steel 309 Tubing Exporter In Mumbai, India.

Aurum alloys are well established manufacturer and supplier of the stainless steel 309 Tubes that offer elegant finishing tubes to the users without creating any hassle. These steel tubes are machined the same way as that of stainless steel 304 is machined. They are basically austenitic-nickel-chromium stainless steels that are widely used in industries where higher temperature applications are required. The higher nickel and chromium content provides analogous corrosion resistance, retention to larger fraction of temperature strength, better resistance to oxidation compared to austenitic alloy 304. We also provide stainless steel tubes with improved corrosion resistance and creeping strength compared to 304 tubes.

Stainless Steel 309 Seamless Tubes
SS 309 Seamless Tubes
SS 309 Welded Tubes
SS 309 Welded Tubes
Stainless Steel 309 ERW Tube
SS 309 ERW Tube

Stainless steel 309 welded tubes contain lower nickel content, which is used to improve resistance toward sulphur attack at high and elevated temperatures. They are often used in heating elements, furnace parts, heat exchangers, jet engine parts, chemical processing equipments, refinery, baffles, etc. The stainless steel tubes are austenitic heat resisting alloys with 1900 degree F oxidation resisting properties under temperature conditions. The strength of the tubes at higher temperature is similar to stainless steel 18-8.

The stainless steel 309 Tubes has specifications as ASME SA213/ A358 CL/ A249/ ASTM A/ A312 and it had dimension as ASME, API and ASTM.  The size of the tubes may be 1/2”-16” NB and the some of the types of tube are seamless/ LSAW tubes/ ERW/ welded and fabricated. The length of the tube could be cut length, double random or single random and it has forms as Rectangular, hydraulic, square, round, etc. The end of the stainless steel can be beveled End, treaded or plain end.

ASTM / ASME A312 / SA312 Stainless Steel 309 Tubes, Stainless Steel 309 ERW Tube, SS 309 EFW Tubes, SS 309 Welded Tube, Stainless Steel 309 Seamless Tubes, SS UNS S30900 Seamless / Welded Tube Supplier In India.

For Our Customers:
  • Customer service provided at Aurum Alloys & Engineering LLP is of the highest standard.
  • Material used in pipe production is of high quality.
  • Equipment is updated and regularly maintained.
  • You will get exactly what you need and when you need it.
  • Cost effective and high quality Stainless Steel 309 Tube is supplied.
Stainless Steel 309 Tubes Specifications
  • Specification: ASTM / ASME A312 / SA312
  • Tubes Size: 1/8″NB TO 30″NB IN
  • ERW Tubes: 1/2" NB - 24" NB
  • EFW Tubes: 6" NB - 100" NB
  • Outer Diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB
  • Thickness: 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
  • Dimensions: ASTM, ASME and API
  • Length: Single Random, Double Random & Required Length
  • Type: Seamless / ERW / Welded
  • End: Plain End, Beveled End, Treaded

Equivalent Grades for SS 309 Tube

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
309 S30409 - - 1.4301 - - -

SS 309 Tubes Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
309 min. 18.0 8.0
max. 0.10 max 2.0 max 0.75 max 0.045 max 0.03 max 20.0 10.5

Stainless Steel 309 Seamless Tube Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
309 Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 % 92 201


Available Stock at Aurum Alloys


Stainless Steel 309 Tube Gradewise Stock


Stainless Steel 309 Tubes Quick Details
  • Company Name: Aurum Alloys & Engineering LLP
  • Country/Region: India
  • Port: Nhava Sheva Port Mumbai
  • Main Products: Seamless Tubes, Welded Tubes, Stainless Steel 309 Tubes
  • Certification: ISO 9001, ISO 14001 & OHSAS 18001
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Stainless Steel 309 Tubes Applications
Stainless Steel 304 Round Tubes
Food & Dairy Plants
SS 309 Square Tube
Petrochemical Plants
Stainless Steel 304 Tubing
Desalination Plant
SS 309 Seamless/Welded Tube
Fertilizer Plant
Stainless Steel 309 Seamless Tubes
Chemical Industries
Stainless Steel 309 Welded Tube
Paper Industries
SS 309 ERW Tubes
Oil & Gas Exploration
SS 309 EFW Tube
Pharmaceutical Plant

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