Based in Chennai, India, Vinit Stainless is a top producer and supplier of stainless steel 309S tubing. Vinit Stainless, known for providing high-performance stainless steel solutions, manufactures 309S tubing, which is perfect for corrosive and high-temperature settings. These tubes are made using high-quality raw materials and state-of-the-art production methods, meeting international standards for durability and quality. Serving customers in the petrochemical, thermal processing, and power generation sectors, Vinit Stainless is dedicated to innovation, accuracy, and client satisfaction. They are a trusted partner for important industrial applications in India and around the world because of their SS 309S tubing’s dependable performance.
Stainless Steel 309S Tubing is an austenitic stainless steel that has a low carbon content to enhance weldability and reduce carbide precipitation. It is composed of roughly 23% chromium and 13% nickel. This alloy has exceptional mechanical strength and oxidation resistance up to 1000°C. It has a yield strength of about 205 MPa and a tensile strength of about 550 MPa. At higher temperatures, SS 309S also retains good toughness and elongation. It is appropriate for high-heat and corrosive service environments due to its structural stability and resistance to heat and corrosion.
| 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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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.
Applications needing high heat resistance and corrosion protection frequently use stainless steel 309S tubing. It is frequently used in kiln liners, boiler baffles, heat exchangers and furnace components. The alloy is perfect for refineries, thermal oxidisers, and petrochemical plants where harsh chemicals and high temperatures are frequently encountered. It is appropriate for fabrication in combustion chambers, exhaust ducts, and piping systems because of its low carbon content, which makes welding simple and lowers the chance of intergranular corrosion. Additionally, the food processing, power generation, and chemical industries that demand clean, high-temperature performance use SS 309S tubing.
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