Aditya Stainless stands out as a top manufacturer and supplier of Stainless Steel 309S Tubing in Kolkata, India, providing expertly crafted solutions for high-temperature and corrosive environments. SS 309S is a low-carbon variant of 309 stainless steel, known for its remarkable resistance to oxidation and corrosion, especially in settings that experience frequent thermal cycling. This tubing is perfect for fabrication and welding, ensuring strength and performance in both oxidizing and reducing conditions. Aditya Stainless offers 309S tubing in both seamless and welded forms, available in a variety of sizes, wall thicknesses, and finishes, serving a range of industries including chemical, petrochemical, thermal processing, and heat treatment.
Stainless Steel 309S Tubing is made up of 22–24% chromium, 12–15% nickel, and a low carbon content (maximum 0.08%), making it an excellent choice for welded applications with minimal risk of carbide precipitation. It boasts a tensile strength of around 550 MPa, a yield strength of 205 MPa, and an elongation of 40%, all while maintaining good toughness at elevated temperatures. This alloy keeps its structural integrity under thermal stress and can resist oxidation up to 980°C. The low carbon content not only enhances weldability but also minimizes the risk of intergranular corrosion after exposure to high temperatures.
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Outer Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded. |
| ELEMENT | SS 309S |
| NI | 12.0 – 15.0 |
| C | 0.08 max |
| MN | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| SI | 1.0 max |
| CR | 22.0 – 24.0 |
| MO | 0.75 max |
| Condition & Grade | Tensile Strength | Yeild Strength | Elognation | Hardness |
|---|---|---|---|---|
| SS 309S | 75 (515) | 30 (205) | 35 | 90 HRB max |
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We ensures the highest quality stainless steel 309S tubing through rigorous testing procedures including mechanical, chemical and theoretical testing. Compliance with international standards is demonstrated by industry-standard documentation, such as material test certificates (MTCs). These certifications attest to the durability, strength and performance of the pipe.
Stainless Steel 309s Seamless Tubing is known for its high resistance to oxidation and excellent mechanical properties. It typically comes in diameters ranging from 1/8 inch to 12 inches, with wall thicknesses of 0.5 mm to 10 mm. It offers superior corrosion resistance in high-temperature applications.
Stainless Steel 309s Welded Tubing is ideal for applications requiring good oxidation resistance and strength. It is available in sizes from 1/4 inch to 10 inches in diameter and wall thicknesses from 0.5 mm to 8 mm. This tubing is well-suited for high-temperature environments due to its excellent corrosion resistance.
Stainless Steel 309s Heat Exchanger Tube is designed to handle extreme temperatures and corrosive environments. Common sizes range from 1/2 inch to 3 inches in diameter, with wall thicknesses of 1 mm to 5 mm. It provides excellent thermal conductivity and resistance to oxidation.
Stainless Steel 309s Instrumentation Tubing is used for precise measurement and control applications. It is available in sizes from 1/8 inch to 2 inches in diameter and wall thicknesses from 0.5 mm to 3 mm. This tubing offers strong resistance to high temperatures and corrosive environments.
Stainless Steel 309s Boiler Tubes are engineered for use in high-pressure and high-temperature environments within boilers. Typical sizes are from 1/2 inch to 4 inches in diameter, with wall thicknesses of 1 mm to 8 mm. They exhibit excellent resistance to thermal cycling and oxidation.
Stainless Steel 309s U-Tubes are used in heat exchangers and other applications requiring bending and high thermal resistance. Sizes generally range from 1/2 inch to 2 inches in diameter. They are highly resistant to thermal stress and corrosion.
Stainless Steel 309s Condenser Tube is designed for use in condenser systems where high heat resistance is critical. It comes in sizes from 1/2 inch to 3 inches in diameter and wall thicknesses from 0.5 mm to 4 mm. It provides excellent durability and resistance to corrosion and heat.
Stainless Steel 309s Fin Tubes are used in applications where enhanced heat transfer is needed, such as in heat exchangers and radiators. Typical sizes are from 1/2 inch to 2 inches in diameter, with various fin lengths and thicknesses. They offer good resistance to oxidation and high temperatures.
Stainless Steel 309S Tubing finds its place in various applications that demand high-temperature strength and corrosion resistance. It’s perfect for heat exchanger tubes, boiler tubes, furnace components, and thermal processing equipment. Industries like power generation, chemical and petrochemical processing, cement plants, and refineries depend on 309S tubing for its durability, especially when faced with continuous exposure to high heat and corrosive gases. Its low carbon content also makes it a great fit for welded constructions in exhaust systems, combustion chambers, and other structures that endure elevated temperatures, ensuring longevity and reliability.
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